Saturday, December 6, 2008
CCNA 1 - Module 6
89,4%
1
How many bits make up an IPv4 address?
128
64
48
32
2
Refer to the exhibit. A network administrator has to develop an IP addressing scheme that uses the 192.168.1.0 /24 address space. The network that contains the serial link has already been addressed out of a separate range. Each network will be allocated the same number of host addresses. Which network mask will be appropriate to address the remaining networks?
255.255.255.248
255.255.255.224
255.255.255.192
255.255.255.240
255.255.255.128
255.255.255.252
3
Refer to the exhibit. The network administrator has assigned the internetwork of LBMISS an address range of 192.168.10.0. This address range has been subnetted using a /29 mask. In order to accommodate a new building, the technician has decided to use the fifth subnet for configuring the new network (subnet zero is the first subnet). By company policies, the router interface is always assigned the first usable host address and the workgroup server is given the last usable host address. Which configuration should be entered into the workgroup server's properties to allow connectivity to the network?
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.39
IP address: 192.168.10.38 subnet mask: 255.255.255.240 default gateway: 192.168.10.33
IP address: 192.168.10.38 subnet mask: 255.255.255.248 default gateway: 192.168.10.33
IP address: 192.168.10.39 subnet mask: 255.255.255.248 default gateway: 192.168.10.31
IP address: 192.168.10.254 subnet mask: 255.255.255.0 default gateway: 192.168.10.1
4
Refer to the exhibit. Which network prefix will work with the IP addressing scheme shown in the graphic.
/24
/16
/20
/27
/25
/28
5
Refer to the exhibit. A network administrator discovers that host A is having trouble with Internet connectivity, but the server farm has full connectivity. In addition, host A has full connectivity to the server farm. What is a possible cause of this problem?
The router has an incorrect gateway.
Host A has an overlapping network address.
Host A has an incorrect default gateway configured.
Host A has an incorrect subnet mask.
NAT is required for the host A network.
6
What subnet mask would a network administrator assign to a network address of 172.30.1.0 if it were possible to have up to 254 hosts?
255.255.0.0
255.255.255.0
255.255.254.0
255.255.248.0
7
Given the IP address and subnet mask of 172.16.134.64 255.255.255.224, which of the following would describe this address?
This is a useable host address.
This is a broadcast address.
This is a network address.
This is not a valid address.
8
What three facts are true about the network portion of an IPv4 address? (Choose three.)
identifies an individual device
is identical for all hosts in a broadcast domain
is altered as packet is forwarded
varies in length
is used to forward packets
uses flat addressing
9
What is the network address of the host 172.25.67.99 /23 in binary?
10101100. 00011001.01000011.00000000
10101100. 00011001.01000011.11111111
10101100. 00011001.01000010.00000000
10101100. 00011001.01000010.01100011
10101100. 00010001.01000011. 01100010
10101100. 00011001.00000000.00000000
10
A router interface has been assigned an IP address of 172.16.192.166 with a mask of 255.255.255.248. To which subnet does the IP address belong?
172.16.0.0
172.16.192.0
172.16.192.128
172.16.192.160
172.16.192.168
172.16.192.176
11
Refer to the exhibit. Why would the response shown be displayed after issuing the command ping 127.0.0.1 on a PC?
The IP settings are not properly configured on the host.
Internet Protocol is not properly installed on the host.
There is a problem at the physical or data link layer.
The default gateway device is not operating.
A router on the path to the destination host has gone down.
12
What two things will happen if a router receives an ICMP packet which has a TTL value of 1 and the destination host is several hops away? (Choose two.)
The router will discard the packet.
The router will decrement the TTL value and forward the packet to the next router on the path to the destination host.
The router will send a time exceeded message to the source host.
The router will increment the TTL value and forward the packet to the next router on the path to the destination host.
The router will send an ICMP Redirect Message to the source host.
13
Refer to the exhibit. An administrator is designing security rules for the 192.168.22.0 /24 network. Each security rule requires an address and mask pair to represent the machines that will be affected by the rule. Which two address and mask pairs will be the most precise way to reference the servers and hosts separately. (Choose two.)
192.168.22.40 255.255.255.248
192.168.22.40 255.255.255.252
192.168.22.100 255.255.255.128
192.168.22.100 255.255.255.254
192.168.22.1 255.255.255.192
192.168.22.101 255.255.255.224
14
Which of the following are features of IPv6? (Choose three.)
larger address space
faster routing protocols
data types and classes of service
authentication and encryption
improved host naming conventions
same addressing scheme as IPv4
15
Which process do routers use to determine the subnet network address based upon a given IP address and subnet mask?
binary adding
hexadecimal anding
binary division
binary multiplication
binary ANDing
16
What is the primary reason for development of IPv6?
security
header format simplification
expanded addressing capabilities
addressing simplification
17
Which three IP addresses are private? (Choose three.)
172.168.33.1
10.35.66.70
192.168.99.5
172.18.88.90
192.33.55.89
172.35.16.5
18
Which statements are true regarding IP addressing? (Choose two.)
NAT translates public addresses to private addresses destined for the Internet.
Only one company is allowed to use a specific private network address space.
Private addresses are blocked from public Internet by router.
Network 172.32.0.0 is part of the private address space.
IP address 127.0.0.1 can be used for a host to direct traffic to itself.
19
Which IPv4 subnetted addresses represent valid host addresses? (Choose three.)
172.16.4.127 /26
172.16.4.155 /26
172.16.4.193 /26
172.16.4.95 /27
172.16.4.159 /27
172.16.4.207 /27
20
What is a group of hosts called that have identical bit patterns in the high order bits of their addresses?
an internet
a network
an octet
a radi
21
Refer to the exhibit. Host A is connected to the LAN, but it cannot get access to any resources on the Internet. The configuration of the host is shown in the exhibit. What could be the cause of the problem?
The host subnet mask is incorrect.
The default gateway is a network address.
The default gateway is a broadcast address.
The default gateway is on a different subnet from the host.
22
Which of the following network devices are recommended to be assigned static IP addresses? (Choose three.)
LAN workstations
servers
network printers
routers
remote workstations
laptops
CCNA 1 - Module 7
1
Which options are properties of contention-based media access for a shared media? (Choose three.)
**non-deterministic
**less overhead
one station transmits at a time
**collisions exist
devices must wait their turn
token passing
2
What is a primary purpose of encapsulating packets into frames?
provide routes across the internetwork
format the data for presentation to the user
**facilitate the entry and exit of data on media
identify the services to which transported data is associated
3
Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop?
1
**2
4
8
4
What is true concerning physical and logical topologies?
The logical topology is always the same as the physical topology.
Physical topologies are concerned with how a network transfers frames.
Physical signal paths are defined by Data Link layer protocols.
**Logical topologies consist of virtual connections between nodes.
5
Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for www.server?
00-1c-41-ab-c0-00
**00-0c-85-cf-65-c0
00-0c-85-cf-65-c1
00-12-3f-32-05-af
6
What are three characteristics of valid Ethernet Layer 2 addresses? (Choose three.)
**They are 48 binary bits in length.
They are considered physical addresses.
**They are generally represented in hexadecimal format.
They consist of four eight-bit octets of binary numbers.
They are used to determine the data path through the network.
**They must be changed when an Ethernet device is added or moved within the network.
7
Refer to the exhibit. A frame is being sent from the PC to the laptop. Which source MAC and IP addresses will be included in the frame as it leaves RouterB? (Choose two.)
source MAC - PC
source MAC - S0/0 on RouterA
**source MAC - Fa0/1 on RouterB
**source IP - PC
source IP - S0/0 on RouterA
source IP - Fa0/1 of RouterB
8
What determines the method of media access control? (Choose two.)
network layer addressing
**media sharing
application processes
**logical topology
intermediary device function
9
What is the purpose of the preamble in an Ethernet frame?
is used as a pad for data
identifies the source address
identifies the destination address
marks the end of timing information
**is used for timing synchronization with alternating patterns of ones and zeros
10
What statements are true regarding addresses found at each layer of the OSI model? (Choose two.)
**Layer 2 may identify devices by a physical address burned into the network card
Layer 2 identifies the applications that are communicating
**Layer 3 represents a hierarchical addressing scheme
Layer 4 directs communication to the proper destination network
Layer 4 addresses are used by intermediary devices to forward data
11
Which statements describe the logical token-passing topology? (Choose two.)
Network usage is on a first come, first serve basis.
**Computers are allowed to transmit data only when they possess a token.
Data from a host is received by all other hosts.
**Electronic tokens are passed sequentially to each other.
Token passing networks have problems with high collision rates.
12
Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?
LLC
**MAC
HDLC
NIC
13
What is true regarding media access control? (Choose three.)
**Ethernet utilizes CSMA/CD
**defined as placement of data frames on the media
contention-based access is also known as deterministic
802.11 utilizes CSMA/CD
**Data Link layer protocols define the rules for access to different media
controlled access contains data collisions
14
What is a characteristic of a logical point-to-point topology?
The nodes are physically connected.
The physical arrangement of the nodes is restricted.
**The media access control protocol can be very simple.
The data link layer protocol used over the link requires a large frame header.
15
What two facts are true when a device is moved from one network or subnet to another? (Choose two.)
The Layer 2 address must be reassigned.
The default gateway address should not be changed.
**The device will still operate at the same Layer 2 address.
Applications and services will need additional port numbers assigned.
**The Layer 3 address must be reassigned to allow communications to the new network.
16
What is a function of the data link layer?
provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
**provides for the exchange data over a common local media
17
Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)
the Layer 3 protocol selected
**the geographic scope of the network
the PDU defined by the transport layer
**the physical layer implementation
**the number of hosts to be interconnected
18
What is the primary purpose of the trailer in a data link layer frame?
define the logical topology
provide media access control
**support frame error detection
carry routing information for the frame
19
A network administrator has been asked to provide a graphic representation of exactly where the company network wiring and equipment are located in the building. What is this type of drawing?
logical topology
**physical topology
cable path
wiring grid
access topology
20
Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?
All three networks use CSMA/CA
None of the networks require media access control.
**Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.
Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.
Which options are properties of contention-based media access for a shared media? (Choose three.)
**non-deterministic
**less overhead
one station transmits at a time
**collisions exist
devices must wait their turn
token passing
2
What is a primary purpose of encapsulating packets into frames?
provide routes across the internetwork
format the data for presentation to the user
**facilitate the entry and exit of data on media
identify the services to which transported data is associated
3
Refer to the exhibit. How many unique CRC calculations will take place as traffic routes from the PC to the laptop?
1
**2
4
8
4
What is true concerning physical and logical topologies?
The logical topology is always the same as the physical topology.
Physical topologies are concerned with how a network transfers frames.
Physical signal paths are defined by Data Link layer protocols.
**Logical topologies consist of virtual connections between nodes.
5
Refer to the exhibit. Assuming that the network in the exhibit is converged meaning the routing tables and ARP tables are complete, which MAC address will Host A place in the destination address field of Ethernet frames destined for www.server?
00-1c-41-ab-c0-00
**00-0c-85-cf-65-c0
00-0c-85-cf-65-c1
00-12-3f-32-05-af
6
What are three characteristics of valid Ethernet Layer 2 addresses? (Choose three.)
**They are 48 binary bits in length.
They are considered physical addresses.
**They are generally represented in hexadecimal format.
They consist of four eight-bit octets of binary numbers.
They are used to determine the data path through the network.
**They must be changed when an Ethernet device is added or moved within the network.
7
Refer to the exhibit. A frame is being sent from the PC to the laptop. Which source MAC and IP addresses will be included in the frame as it leaves RouterB? (Choose two.)
source MAC - PC
source MAC - S0/0 on RouterA
**source MAC - Fa0/1 on RouterB
**source IP - PC
source IP - S0/0 on RouterA
source IP - Fa0/1 of RouterB
8
What determines the method of media access control? (Choose two.)
network layer addressing
**media sharing
application processes
**logical topology
intermediary device function
9
What is the purpose of the preamble in an Ethernet frame?
is used as a pad for data
identifies the source address
identifies the destination address
marks the end of timing information
**is used for timing synchronization with alternating patterns of ones and zeros
10
What statements are true regarding addresses found at each layer of the OSI model? (Choose two.)
**Layer 2 may identify devices by a physical address burned into the network card
Layer 2 identifies the applications that are communicating
**Layer 3 represents a hierarchical addressing scheme
Layer 4 directs communication to the proper destination network
Layer 4 addresses are used by intermediary devices to forward data
11
Which statements describe the logical token-passing topology? (Choose two.)
Network usage is on a first come, first serve basis.
**Computers are allowed to transmit data only when they possess a token.
Data from a host is received by all other hosts.
**Electronic tokens are passed sequentially to each other.
Token passing networks have problems with high collision rates.
12
Which sublayer of the data link layer prepares a signal to be transmitted at the physical layer?
LLC
**MAC
HDLC
NIC
13
What is true regarding media access control? (Choose three.)
**Ethernet utilizes CSMA/CD
**defined as placement of data frames on the media
contention-based access is also known as deterministic
802.11 utilizes CSMA/CD
**Data Link layer protocols define the rules for access to different media
controlled access contains data collisions
14
What is a characteristic of a logical point-to-point topology?
The nodes are physically connected.
The physical arrangement of the nodes is restricted.
**The media access control protocol can be very simple.
The data link layer protocol used over the link requires a large frame header.
15
What two facts are true when a device is moved from one network or subnet to another? (Choose two.)
The Layer 2 address must be reassigned.
The default gateway address should not be changed.
**The device will still operate at the same Layer 2 address.
Applications and services will need additional port numbers assigned.
**The Layer 3 address must be reassigned to allow communications to the new network.
16
What is a function of the data link layer?
provides the formatting of data
provides end-to-end delivery of data between hosts
provides delivery of data between two applications
**provides for the exchange data over a common local media
17
Which three factors should be considered when implementing a Layer 2 protocol in a network? (Choose three.)
the Layer 3 protocol selected
**the geographic scope of the network
the PDU defined by the transport layer
**the physical layer implementation
**the number of hosts to be interconnected
18
What is the primary purpose of the trailer in a data link layer frame?
define the logical topology
provide media access control
**support frame error detection
carry routing information for the frame
19
A network administrator has been asked to provide a graphic representation of exactly where the company network wiring and equipment are located in the building. What is this type of drawing?
logical topology
**physical topology
cable path
wiring grid
access topology
20
Refer to the exhibit. Which statement describes the media access control methods that are used by the networks in the exhibit?
All three networks use CSMA/CA
None of the networks require media access control.
**Network 1 uses CSMA/CD and Network 3 uses CSMA/CA.
Network 1 uses CSMA/CA and Network 2 uses CSMA/CD.
Network 2 uses CSMA/CA and Network 3 uses CSMA/CD.
CCNA 1 - Module 8
1
Which type of cable run is most often associated with fiber-optic cable?
Xbackbone cable
horizontal cable
patch cable
work area cable
2
In most business LANs, which connector is used with twisted-pair networking cable?
BNC
RJ-11
**RJ-45
Type F
3
When is a straight-through cable used in a network?
when connecting a router through the console port
when connecting one switch to another switch
**when connecting a host to a switch
when connecting a router to another router
4
With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?
**the magnetic field around the adjacent pairs of wire
the use of braided wire to shield the adjacent wire pairs
the reflection of the electrical wave back from the far end of the cable
the collision caused by two nodes trying to use the media simultaneously
5
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Presentation
Transport
Data Link
**Physical
6
An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
light injector
**OTDR
TDR
multimeter
7
XYZ Company is installing new cable runs on their data network. What two types of cable would most commonly be used for new runs? (Choose two.)
**coax
Cat4 UTP
Cat5 UTP
**Cat6 UTP
STP
8
What is a possible effect of improperly applying a connector to a network cable?
Data will be forwarded to the wrong node.
**Data transmitted through that cable may experience signal loss.
An improper signaling method will be implemented for data transmitted on that cable.
The encoding method for data sent on that cable will change to compensate for the improper connection.
9
What are three measures of data transfer? (Choose three.)
goodput
**frequency
amplitude
**throughput
crosstalk
**bandwidth
10
Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
coax cable
rollover cable
**crossover cable
straight-through cable
11
In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?
coax
**fiber
Cat5e UTP
Cat6 UTP
STP
12
Which fiber connector supports full duplex Ethernet?
kolmas
13
Which method of signal transmission uses radio waves to carry signals?
electrical
optical
**wireless
acoustic
14
Which characteristics describe fiber optic cable? (Choose two.)
**It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding and twisting to protect data.
It has a maximum speed of 100 Mbps.
**It is the most expensive type of LAN cabling.
15
Which of the following is a characteristic of single-mode fiber-optic cable?
**generally uses LEDs as the light source
relatively larger core with multiple light paths
less expensive than multimode
generally uses lasers as the light source
16
What is considered a benefit of wireless as a media choice?
**more host mobility
lower security risks
reduced susceptibility to interference
less impact of the surroundings on the effective coverage area
17
What characteristic of UTP cable helps reduce the effects of interference?
the metal braiding in the shielding
the reflective cladding around core
**the twisting of the wires in the cable
the insulating material in the outer jacket
18
What is a primary role of the Physical layer in transmitting data on the network?
**create the signals that represent the bits in each frame on to the media
provide physical addressing to the devices
determine the path packets take through the network
control data access to the media
Which type of cable run is most often associated with fiber-optic cable?
Xbackbone cable
horizontal cable
patch cable
work area cable
2
In most business LANs, which connector is used with twisted-pair networking cable?
BNC
RJ-11
**RJ-45
Type F
3
When is a straight-through cable used in a network?
when connecting a router through the console port
when connecting one switch to another switch
**when connecting a host to a switch
when connecting a router to another router
4
With the use of unshielded twisted-pair copper wire in a network, what causes crosstalk within the cable pairs?
**the magnetic field around the adjacent pairs of wire
the use of braided wire to shield the adjacent wire pairs
the reflection of the electrical wave back from the far end of the cable
the collision caused by two nodes trying to use the media simultaneously
5
Which OSI layer is responsible for binary transmission, cable specification, and physical aspects of network communication?
Presentation
Transport
Data Link
**Physical
6
An installed fiber run can be checked for faults, integrity, and the performance of the media by using what device?
light injector
**OTDR
TDR
multimeter
7
XYZ Company is installing new cable runs on their data network. What two types of cable would most commonly be used for new runs? (Choose two.)
**coax
Cat4 UTP
Cat5 UTP
**Cat6 UTP
STP
8
What is a possible effect of improperly applying a connector to a network cable?
Data will be forwarded to the wrong node.
**Data transmitted through that cable may experience signal loss.
An improper signaling method will be implemented for data transmitted on that cable.
The encoding method for data sent on that cable will change to compensate for the improper connection.
9
What are three measures of data transfer? (Choose three.)
goodput
**frequency
amplitude
**throughput
crosstalk
**bandwidth
10
Refer to the exhibit. Which type of Category 5 cable is used to make an Ethernet connection between Host A and Host B?
coax cable
rollover cable
**crossover cable
straight-through cable
11
In LAN installations where potential electrical hazards or electromagnetic interference may be present, what type of media is recommended for backbone cabling?
coax
**fiber
Cat5e UTP
Cat6 UTP
STP
12
Which fiber connector supports full duplex Ethernet?
kolmas
13
Which method of signal transmission uses radio waves to carry signals?
electrical
optical
**wireless
acoustic
14
Which characteristics describe fiber optic cable? (Choose two.)
**It is not affected by EMI or RFI.
Each pair of cables is wrapped in metallic foil.
It combines the technique of cancellation, shielding and twisting to protect data.
It has a maximum speed of 100 Mbps.
**It is the most expensive type of LAN cabling.
15
Which of the following is a characteristic of single-mode fiber-optic cable?
**generally uses LEDs as the light source
relatively larger core with multiple light paths
less expensive than multimode
generally uses lasers as the light source
16
What is considered a benefit of wireless as a media choice?
**more host mobility
lower security risks
reduced susceptibility to interference
less impact of the surroundings on the effective coverage area
17
What characteristic of UTP cable helps reduce the effects of interference?
the metal braiding in the shielding
the reflective cladding around core
**the twisting of the wires in the cable
the insulating material in the outer jacket
18
What is a primary role of the Physical layer in transmitting data on the network?
**create the signals that represent the bits in each frame on to the media
provide physical addressing to the devices
determine the path packets take through the network
control data access to the media
CCNA 1 - Module 9
1
In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
Host B can transmit immediately since it is connected on its own cable segment.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
Host B must send a request signal to Host A by transmitting an interframe gap.
**Host B must wait until it is certain that Host A has completed sending its frame.
2
Ethernet operates at which layers of the OSI model? (Choose two.)
Network layer
Transport layer
**Physical layer
Application layer
Session layer
**Data-link layer
3
Which of the following describe interframe spacing? (Choose two.)
**the minimum interval, measured in bit-times, that any station must wait before sending another frame
the maximum interval, measured in bit-times, that any station must wait before sending another frame
the 96-bit payload padding inserted into a frame to achieve a legal frame size
the 96-bit frame padding transmitted between frames to achieve proper synchronization
**the time allowed for slow stations to process a frame and prepare for the next frame
the maximum interval within which a station must send another frame to avoid being considered unreachable
4
What three primary functions does data link layer encapsulation provide? (Choose three.)
**addressing
**error detection
**frame delimiting
port identification
path determination
IP address resolution
5
When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
**The hosts return to a listen-before-transmit mode. <--- The hosts creating the collision have priority to send data. The hosts creating the collision retransmit the last 16 frames. The hosts extend their delay period to allow for rapid transmission.
6
What are three functions of the upper data link sublayer in the OSI model? (Choose three.) recognizes streams of bits
**identifies the network layer protocol
**makes the connection with the upper layers identifies the source and destination applications
**insulates network layer protocols from changes in physical equipment determines the source of a transmission when multiple devices are transmitting
7
What does the IEEE 802.2 standard represent in Ethernet technologies? MAC sublayer Physical layer **Logical Link Control sublayer Network layer
8
Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?
A random delay is used to ensure a collision-free link.
A random delay value for each device is assigned by the manufacturer.
A standard delay value could not be agreed upon among networking device vendors.
**A random delay helps prevent the stations from experiencing another collision during the transmission.
9
Refer to the exhibit. Which option correctly matches the frame field type with the contents that frame field includes? header field - preamble and stop frame
**data field - network layer packet data field - physical addressing trailer field - FCS and SoF
10
Host A has an IP address of 172.16.225.93 and a mask of 255.255.248.0. Host A needs to communicate with a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on the destination address. What two things will occur? (Choose two.)
Host A will change the destination IP to the IP of the nearest router and forward the packet.
Host A will broadcast an ARP request for the MAC of its default gateway. A result of 172.16.225.0 will be obtained.
**Host A will broadcast an ARP request for the MAC of the destination host. A result of 172.16.224.0 will be obtained.
**A result of 172.16.225.255 will be obtained.
11
Which of the following is a drawback of the CSMA/CD access method?
**Collisions can decrease network performance. It is more complex than non-deterministic protocols. Deterministic media access protocols slow network performance. CSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.
12
Ethernet operates at which layer of the TCP/IP network model?
application physical transport internet data link
**network access
13
What is the primary purpose of ARP? translate URLs to IP addresses
**resolve IPv4 addresses to MAC addresses provide dynamic IP configuration to network devices convert internal private addresses to external public addresses
14
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
**No collisions will occur on this link. Only one of the devices can transmit at a time. The switch will have priority for transmitting data. The devices will default back to half duplex if excessive collisions occur.
15
Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
A packet with the destination IP of Router_B.
A frame with the destination MAC address of Switch_A.
A packet with the destination IP of Router_A.
**A frame with the destination MAC address of Router_A.
**A packet with the destination IP of Server_B.
A frame with the destination MAC address of Server_B.
16
Which statements correctly describe MAC addresses? (Choose three.)
dynamically assigned
**copied into RAM during system startup layer 3 address
**contains a 3 byte OUI
**6 bytes long 32 bits long
17
Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.) reduction in cross-talk
**minimizing of collisions support for UTP cabling division into broadcast domains
**increase in the throughput of communications
18
What are the two most commonly used media types in Ethernet networks today? (Choose two.) coaxial thicknet
**copper UTP coaxial thinnet
**optical fiber shielded twisted pair
19
Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below. 85 90
**BA A1 B3 1C
20
After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data? the device involved in the collision with the lowest MAC address the device involved in the collision with the lowest IP address
**any device in the collision domain whose backoff timer expires first those that began transmitting at the same time
In the graphic, Host A has reached 50% completion in sending a 1 KB Ethernet frame to Host D when Host B wishes to transmit its own frame to Host C. What must Host B do?
Host B can transmit immediately since it is connected on its own cable segment.
Host B must wait to receive a CSMA transmission from the hub, to signal its turn.
Host B must send a request signal to Host A by transmitting an interframe gap.
**Host B must wait until it is certain that Host A has completed sending its frame.
2
Ethernet operates at which layers of the OSI model? (Choose two.)
Network layer
Transport layer
**Physical layer
Application layer
Session layer
**Data-link layer
3
Which of the following describe interframe spacing? (Choose two.)
**the minimum interval, measured in bit-times, that any station must wait before sending another frame
the maximum interval, measured in bit-times, that any station must wait before sending another frame
the 96-bit payload padding inserted into a frame to achieve a legal frame size
the 96-bit frame padding transmitted between frames to achieve proper synchronization
**the time allowed for slow stations to process a frame and prepare for the next frame
the maximum interval within which a station must send another frame to avoid being considered unreachable
4
What three primary functions does data link layer encapsulation provide? (Choose three.)
**addressing
**error detection
**frame delimiting
port identification
path determination
IP address resolution
5
When a collision occurs in a network using CSMA/CD, how do hosts with data to transmit respond after the backoff period has expired?
**The hosts return to a listen-before-transmit mode. <--- The hosts creating the collision have priority to send data. The hosts creating the collision retransmit the last 16 frames. The hosts extend their delay period to allow for rapid transmission.
6
What are three functions of the upper data link sublayer in the OSI model? (Choose three.) recognizes streams of bits
**identifies the network layer protocol
**makes the connection with the upper layers identifies the source and destination applications
**insulates network layer protocols from changes in physical equipment determines the source of a transmission when multiple devices are transmitting
7
What does the IEEE 802.2 standard represent in Ethernet technologies? MAC sublayer Physical layer **Logical Link Control sublayer Network layer
8
Why do hosts on an Ethernet segment that experience a collision use a random delay before attempting to transmit a frame?
A random delay is used to ensure a collision-free link.
A random delay value for each device is assigned by the manufacturer.
A standard delay value could not be agreed upon among networking device vendors.
**A random delay helps prevent the stations from experiencing another collision during the transmission.
9
Refer to the exhibit. Which option correctly matches the frame field type with the contents that frame field includes? header field - preamble and stop frame
**data field - network layer packet data field - physical addressing trailer field - FCS and SoF
10
Host A has an IP address of 172.16.225.93 and a mask of 255.255.248.0. Host A needs to communicate with a new host whose IP is 172.16.231.78. Host A performs the ANDing operation on the destination address. What two things will occur? (Choose two.)
Host A will change the destination IP to the IP of the nearest router and forward the packet.
Host A will broadcast an ARP request for the MAC of its default gateway. A result of 172.16.225.0 will be obtained.
**Host A will broadcast an ARP request for the MAC of the destination host. A result of 172.16.224.0 will be obtained.
**A result of 172.16.225.255 will be obtained.
11
Which of the following is a drawback of the CSMA/CD access method?
**Collisions can decrease network performance. It is more complex than non-deterministic protocols. Deterministic media access protocols slow network performance. CSMA/CD LAN technologies are only available at slower speeds than other LAN technologies.
12
Ethernet operates at which layer of the TCP/IP network model?
application physical transport internet data link
**network access
13
What is the primary purpose of ARP? translate URLs to IP addresses
**resolve IPv4 addresses to MAC addresses provide dynamic IP configuration to network devices convert internal private addresses to external public addresses
14
Refer to the exhibit. The switch and workstation are administratively configured for full-duplex operation. Which statement accurately reflects the operation of this link?
**No collisions will occur on this link. Only one of the devices can transmit at a time. The switch will have priority for transmitting data. The devices will default back to half duplex if excessive collisions occur.
15
Refer to the exhibit. Host_A is attempting to contact Server_B. Which statements correctly describe the addressing Host_A will generate in the process? (Choose two.)
A packet with the destination IP of Router_B.
A frame with the destination MAC address of Switch_A.
A packet with the destination IP of Router_A.
**A frame with the destination MAC address of Router_A.
**A packet with the destination IP of Server_B.
A frame with the destination MAC address of Server_B.
16
Which statements correctly describe MAC addresses? (Choose three.)
dynamically assigned
**copied into RAM during system startup layer 3 address
**contains a 3 byte OUI
**6 bytes long 32 bits long
17
Which two features make switches preferable to hubs in Ethernet-based networks? (Choose two.) reduction in cross-talk
**minimizing of collisions support for UTP cabling division into broadcast domains
**increase in the throughput of communications
18
What are the two most commonly used media types in Ethernet networks today? (Choose two.) coaxial thicknet
**copper UTP coaxial thinnet
**optical fiber shielded twisted pair
19
Convert the binary number 10111010 into its hexadecimal equivalent. Select the correct answer from the list below. 85 90
**BA A1 B3 1C
20
After an Ethernet collision, when the backoff algorithm is invoked, which device has priority to transmit data? the device involved in the collision with the lowest MAC address the device involved in the collision with the lowest IP address
**any device in the collision domain whose backoff timer expires first those that began transmitting at the same time
CCNA 1 - Module 10
Options With Highlight Colours are Correct Answer
1. Refer to the exhibit. A student working in the lab selects a cable that is wired as shown. Which connection types can successfully be made with this cable? (Choose two.)
connecting a PC to a router's console port
connecting two routers together via their fast ethernet ports
connecting two switches together at gigabit speeds
connecting a PC to a switch at Gigabit Ethernet speeds
connecting two devices with the same interface type at Fast Ethernet speeds
2. Which option identifies the primary interface which would be used for initial configuration of a Cisco router?
AUX interface
Ethernet interface
serial interface
console interface
3. What makes fiber preferable to copper cabling for interconnecting buildings? (Choose three.)
greater distances per cable run
lower installation cost
limited susceptibility to EMI/RFI
durable connections
greater bandwidth potential
easily terminated
4. A network administrator is required to use media in the network that can run up to 100 meters in cable length without using repeaters. The chosen media must be inexpensive and easily installed. The installation will be in a pre-existing building with limited cabling space. Which type of media would best meet these requirements?
STP
UTP
coaxial
single-mode fiber
multimode fiber
5. What does the term "attenuation" mean in data communication?
loss of signal strength as distance increases
time for a signal to reach its destination
leakage of signals from one cable pair to another
strengthening of a signal by a networking device
6. How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0?
30
256
2046
2048
4094
4096
7. Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?
255.255.0.0
255.255.255.0
255.255.254.0
255.255.248.0
8. A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?
255.255.255.0
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
9. What type of network cable is used between a terminal and a console port?
cross-over
straight-through
rollover
patch cable
10. Which device is used to create or divide broadcast domains?
hub
switch
bridge
router
repeater
11. Refer to the exhibit. What destination IP address will PC1 place in the header for a packet destined for PC2?
192.168.1.1
192.168.2.1
192.168.2.2
192.168.3.1
192.168.3.54
12. Refer to the exhibit. Based on the IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment?
both host A and B would be successful
host A would be successful, host B would fail
host B would be successful, host A would fail
both Host A and B would fail
30
256
2046
2048
4094
4096
7. Which subnet mask would be assigned to the network address of 192.168.32.0 to provide 254 useable host addresses per subnetwork?
255.255.0.0
255.255.255.0
255.255.254.0
255.255.248.0
8. A company is planning to subnet its network for a maximum of 27 hosts. Which subnet mask would provide the needed hosts and leave the fewest unused addresses in each subnet?
255.255.255.0
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
9. What type of network cable is used between a terminal and a console port?
cross-over
straight-through
rollover
patch cable
10. Which device is used to create or divide broadcast domains?
hub
switch
bridge
router
repeater
11. Refer to the exhibit. What destination IP address will PC1 place in the header for a packet destined for PC2?
192.168.1.1
192.168.2.1
192.168.2.2
192.168.3.1
192.168.3.54
12. Refer to the exhibit. Based on the IP configuration shown, what would be the result of Host A and Host B attempting to communicate outside the network segment?
both host A and B would be successful
host A would be successful, host B would fail
host B would be successful, host A would fail
both Host A and B would fail
13. Which three types of connectors are commonly associated with Cisco's V.35 serial cables? (Choose three.)
RJ 11
DB 60
Winchester 15 pin
DB 9
smart serial
RJ 45
14. Refer to the exhibit. How many subnets are required to support the network that is shown?
2
3
4
5
15. What are three common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose three.)
direct configuration of the device
cable color code association
cable selection and configuration
use of cable testers to determine pinouts
the enabling of the mechanism to electrically swap the transmit and receive pairs
the automatic detection and negotiating of MDI/MDIX operation of the port
16. Which three statements are true about the role of routers in the network? (Choose three.)
They propagate broadcasts.
They enlarge collision domains.
They segment broadcast domains.
They interconnect different network technologies.
Each router interface requires a separate network or subnet.
They maintain a common frame format between LAN and WAN interfaces.
17. Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?
router
hub
switch
wireless access point
RJ 11
DB 60
Winchester 15 pin
DB 9
smart serial
RJ 45
14. Refer to the exhibit. How many subnets are required to support the network that is shown?
2
3
4
5
15. What are three common methods for setting a UTP Ethernet port to MDI or MDIX operation? (Choose three.)
direct configuration of the device
cable color code association
cable selection and configuration
use of cable testers to determine pinouts
the enabling of the mechanism to electrically swap the transmit and receive pairs
the automatic detection and negotiating of MDI/MDIX operation of the port
16. Which three statements are true about the role of routers in the network? (Choose three.)
They propagate broadcasts.
They enlarge collision domains.
They segment broadcast domains.
They interconnect different network technologies.
Each router interface requires a separate network or subnet.
They maintain a common frame format between LAN and WAN interfaces.
17. Refer to the exhibit. A network administrator has decided to use packet capture software to evaluate all traffic from the student subnet on the way to the Internet. To ensure that all packets are captured, what network device should be used to connect the monitoring station to the network between R1 and R2?
router
hub
switch
wireless access point
18. Refer to the exhibit. Assume that all devices are using default settings. How many subnets are required to address the topology that is shown?
1
3
4
5
7
19. Refer to the exhibit. Which three statements are true about the exhibited topology? (Choose three.)
Hosts B and C are in the same subnet.
Five broadcast domains are present.
Host B is using a crossover cable to connect to the router.
Four broadcast domains are present.
Five networks are shown.
Host B is using a rollover cable to connect to the router.
20. To establish a console connection from a computer to a Cisco router, which cable wiring option would be used?
crossover cable
straight through cable
rollover cable
V.35 cable
21. Refer to the exhibit. Which three statements identify the type of cabling that would be used in the segments that are shown? (Choose three.)
Segment 1 uses backbone cabling.
Segment 1 uses a patch cable.
Segment 3 uses patch cabling.
Segment 3 uses vertical cabling.
Segment 3 uses horizontal cabling.
Segment 4 uses vertical cabling.
22. Refer to the exhibit. A network technician has been allocated the 192.168.1.0/24 private IP address range for use in the network that shown in the exhibit. Which subnet mask would be used to meet the host requirements for segment A of this internetwork?
255.255.255.128
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
1
3
4
5
7
19. Refer to the exhibit. Which three statements are true about the exhibited topology? (Choose three.)
Hosts B and C are in the same subnet.
Five broadcast domains are present.
Host B is using a crossover cable to connect to the router.
Four broadcast domains are present.
Five networks are shown.
Host B is using a rollover cable to connect to the router.
20. To establish a console connection from a computer to a Cisco router, which cable wiring option would be used?
crossover cable
straight through cable
rollover cable
V.35 cable
21. Refer to the exhibit. Which three statements identify the type of cabling that would be used in the segments that are shown? (Choose three.)
Segment 1 uses backbone cabling.
Segment 1 uses a patch cable.
Segment 3 uses patch cabling.
Segment 3 uses vertical cabling.
Segment 3 uses horizontal cabling.
Segment 4 uses vertical cabling.
22. Refer to the exhibit. A network technician has been allocated the 192.168.1.0/24 private IP address range for use in the network that shown in the exhibit. Which subnet mask would be used to meet the host requirements for segment A of this internetwork?
255.255.255.128
255.255.255.192
255.255.255.224
255.255.255.240
255.255.255.248
CCNA 1 - Module 11
Options With Highlight Colours are Correct Answer
1. Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?
show running-config
show startup-config
show interfaces
show ip route
show version
show memory
2. Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?
enable password classline console 0password ccna
enable secret ciscoenable password classline console 0password ccna
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password classline console 0password ccna
enable secret ciscoenable password 7 14141E0A1F17line console 0password 7 020507550A
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password 7 14141E0A1F17line console 0password 7 020507550A
3. Refer to the exhibit. A network administrator on HostA has problems accessing the FTP server. Layer three connectivity testing was successful from HostA to the S1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB and run debug commands?
RouterB(config)# enable secret class
Console Port
16. Refer to the exhibit. A student is responsible for the IP addressing, configuration and connectivity testing of the network shown in the graphic. A ping from host B to host C results in a destination unreachable but a ping from host B to host A was successful. What two reasons could account for this failure based on the graphic and partial router output for the Dallas router? (Choose two.)
The host A is turned off.
The Fa0/0 interface on Dallas is shutdown.
The LAN cable is disconnected from host B.
The S0/0/1 IP address of Dallas is improperly configured.
The Fa0/0 interface on Dallas is in a different subnet than host B.
The clock rate is missing on the serial link between Dallas and NYC.
1. Users in the network are experiencing slow response time when doing file transfers to a remote server. What command could be issued to determine if the router has experienced any input or output errors?
show running-config
show startup-config
show interfaces
show ip route
show version
show memory
2. Refer to the exhibit. A technician applies the configuration in the exhibit to a clean router. To verify the configuration, the technician issues the show running-config command in the CLI session with the router. What lines should the technician expect to see in the router output from the show running-config command?
enable password classline console 0password ccna
enable secret ciscoenable password classline console 0password ccna
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password classline console 0password ccna
enable secret ciscoenable password 7 14141E0A1F17line console 0password 7 020507550A
enable secret 5 $1$v0/3$QyQWmJyT7zCa/yaBRasJm0enable password 7 14141E0A1F17line console 0password 7 020507550A
3. Refer to the exhibit. A network administrator on HostA has problems accessing the FTP server. Layer three connectivity testing was successful from HostA to the S1 interface of RouterB. Which set of commands will allow the network administrator to telnet to RouterB and run debug commands?
RouterB(config)# enable secret class
RouterB(config)# line vty 0 4
RouterB(config-if)# login
RouterB(config)# enable secret class
RouterB(config)# enable secret class
RouterB(config)# line vty 0 2
RouterB(config-vty)# password cisco
RouterB(config-vty)# login
RouterB(config)# enable secret class
RouterB(config)# enable secret class
RouterB(config)# line vty 0
RouterB(config-line)# password cisco
RouterB(config-line)# login
RouterB(config)# enable secret class
RouterB(config)# enable secret class
RouterB(config)# line aux 0
RouterB(config-line)# password cisco
RouterB(config-line)# login
RouterB(config)# enable secret class
RouterB(config)# enable secret class
RouterB(config)# line aux 0
RouterB(config-vty)# password cisco
RouterB(config-vty)# login
4. Refer to the exhibit. The output is shown for the show ip route command executed on Router A. What does the IP address 192.168.2.2 represent?
Gateway for the 192.168.1.0 network
Gateway for the 192.168.3.0 network
IP assigned to the serial port on Router A
IP assigned to the serial port on Router B
5. What command is used to change the default router name to Fontana?
Router# name Fontana
Router# hostname Fontana
Router(config)# name Fontana
Router(config)# hostname Fontana
6. The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)
Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
Sydney(config-if)# no shutdown
Sydney(config-if)# ip address 201.100.53.1 255.255.255.224
Sydney(config-if)# clock rate 56000
Sydney(config-if)# ip host Melbourne 201.100.53.2
7. Refer to the exhibit. What additional command is required to allow remote access to this switch?
NA-SW1(config-if)# no shutdown
NA-SW1(config)# enable password password
NA-SW1(config)# ip default-gateway address
NA-SW1(config-if)# description description
Gateway for the 192.168.1.0 network
Gateway for the 192.168.3.0 network
IP assigned to the serial port on Router A
IP assigned to the serial port on Router B
5. What command is used to change the default router name to Fontana?
Router# name Fontana
Router# hostname Fontana
Router(config)# name Fontana
Router(config)# hostname Fontana
6. The serial connection shown in the graphic needs to be configured. Which configuration commands must be made on the Sydney router to establish connectivity with the Melbourne site? (Choose three.)
Sydney(config-if)# ip address 201.100.53.2 255.255.255.0
Sydney(config-if)# no shutdown
Sydney(config-if)# ip address 201.100.53.1 255.255.255.224
Sydney(config-if)# clock rate 56000
Sydney(config-if)# ip host Melbourne 201.100.53.2
7. Refer to the exhibit. What additional command is required to allow remote access to this switch?
NA-SW1(config-if)# no shutdown
NA-SW1(config)# enable password password
NA-SW1(config)# ip default-gateway address
NA-SW1(config-if)# description description
8. When network services fail, which port is most often used to access a router for management purposes?
AUX
Ethernet
Console
Telnet
SSH
9. A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a router to manage it. Which access method should be chosen?
Telnet
Console
AUX
SSH
AUX
Ethernet
Console
Telnet
SSH
9. A network administrator needs to keep the user ID, password, and session contents private when establishing remote CLI connectivity with a router to manage it. Which access method should be chosen?
Telnet
Console
AUX
SSH
10. In a Cisco router, when do changes made to the running-configuration take effect?
after a system restart
as the commands are entered
when logging off the system
when the configuration is saved to the startup-configuration
after a system restart
as the commands are entered
when logging off the system
when the configuration is saved to the startup-configuration
11. Refer to the exhibit. Which names correctly identify the CLI mode represented by the prompt for Switch-East4#? (Choose two.)
line configuration mode
user executive mode
global configuration mode
privileged executive mode
interface configuration mode
enable mode
12. Which three terms correctly define the forms of help available within the Cisco IOS? (Choose three.)
hot keys
context-check
context-sensitive
structured check
command override
command syntax check
line configuration mode
user executive mode
global configuration mode
privileged executive mode
interface configuration mode
enable mode
12. Which three terms correctly define the forms of help available within the Cisco IOS? (Choose three.)
hot keys
context-check
context-sensitive
structured check
command override
command syntax check
13. Which combination of keys would be used at the CLI prompt to interrupt a ping or traceroute process?
Ctrl-C
Ctrl-P
Ctrl-R
Ctrl-Shift-6
Ctrl-Z
14. Refer to the exhibit. What command will place the router into the correct mode to configure an appropriate interface to connect to a LAN?
UBAMA# configure terminal
UBAMA(config)# line vty 0 4
UBAMA(config)# line console 0
UBAMA(config)# interface Serial 0/0/0
UBAMA(config)# interface FastEthernet 0/1
15. On a Cisco router, which interface would be used to make the initial configuration?Ctrl-C
Ctrl-P
Ctrl-R
Ctrl-Shift-6
Ctrl-Z
14. Refer to the exhibit. What command will place the router into the correct mode to configure an appropriate interface to connect to a LAN?
UBAMA# configure terminal
UBAMA(config)# line vty 0 4
UBAMA(config)# line console 0
UBAMA(config)# interface Serial 0/0/0
UBAMA(config)# interface FastEthernet 0/1
Console Port
16. Refer to the exhibit. A student is responsible for the IP addressing, configuration and connectivity testing of the network shown in the graphic. A ping from host B to host C results in a destination unreachable but a ping from host B to host A was successful. What two reasons could account for this failure based on the graphic and partial router output for the Dallas router? (Choose two.)
The host A is turned off.
The Fa0/0 interface on Dallas is shutdown.
The LAN cable is disconnected from host B.
The S0/0/1 IP address of Dallas is improperly configured.
The Fa0/0 interface on Dallas is in a different subnet than host B.
The clock rate is missing on the serial link between Dallas and NYC.
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