Tuesday, July 21, 2009
Thursday, July 16, 2009
CCNA1 Final – v1(Lastest in Jun 2009)
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This is CCNA1 Final lastest
If you have questions please comment in this blog
(Questions by Mr Nguyen Answers by quocvuong) – I hope this test 100% correct
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Note:
(I will upload v2 in this blog. wait me 1 day) – In version 2 have many new questions
CCNA2 Final (Jun 2009) – 76 % – Thanks Dinidu Nadun
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CCNA4 Skill (Full Questions and answers) + CCNA 1-2-3-4 FINAL (Lastest)
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CCNA 2 – Final 94,8% – New
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1. Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and its displayed commands, which statement is true?ans:
The link to the ISP is not advertised by the routing protocol process.
2. Refer to the exhibit. While trying to diagnose a routing problem in the network, the network administrator runs the debug ip rip command. What can be determined from the output of this command?
ans:
The router will be unable to ping 192.168.1.2.
3. Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for this?
ans:
The hello and dead intervals are different on the two routers.
4. Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency?
ans:
Configure both routers with the same EIGRP process ID.
5. Refer to the exhibit. Routers R1 and R3 use different routing protocols with default administrative distance values. All devices are properly configured and the destination network is advertised by both protocols.
Which path will be used to transmit the data packets from PC1 to PC2?
ans:
The packets will travel via R2-R1.
6. Refer to the exhibit. What is the meaning of the highlighted value 2?
ans:
It is the number of hops between R2 and the 192.168.8.0/24 network.
7. What is the function of the OSPF LSR packet?
ans:
It is used by the receiving routers to request more information about any entry in the DBD.
8. Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)
The router modifies the TTL field, decrementing it by one.
The router maintains the same source and destination IP.
The router changes the source physical address to the physical address of the exit interface.
9. Refer to the exhibit. The routers are properly configured using a dynamic routing protocol with default settings, and the network is fully converged. Router A is forwarding data to router E. Which statement is true about the routing path?
If the network uses the RIP protocol, router A will determine that all paths have equal cost.
10. Refer to the exhibit. A network administrator has run the show interface command. The output of this command is displayed. What is the first step that is required to make this interface operational?
Issue the no shutdown command on the interface.
11. Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.
What is the reason for the ping failure?
The 192.168.4.0 network is not included in the RIP configuration of R2.
12. Refer to the exhibit. R2 is configured correctly. The network administrator has configured R1 as shown. Which two facts are true about the forwarding of route information by R1? (Choose two.)
R1 will forward the route information for subnet 192.168.100.0/30.
R1 will forward the route information with an administrative distance set to 50.
13. Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all three routers are displayed. All routers are operational and pings are not blocked on this network. Which ping will fail?
from R1 to 192.168.3.1
14. Refer to the exhibit. A network administrator has configured R1 as shown, and all interfaces are functioning correctly. A ping from R1 to 172.16.1.1 fails. What could be the cause of this problem?
The default route is configured incorrectly.
15. Which two router component and operation pair are correctly described? (Choose two.)
NVRAM – stores the configuration file
POST – runs diagnostics on hardware modules
16. A network administrator uses the RIP routing protocol to implement routing within an autonomous system. What are two characteristics of this protocol? (Choose two.):
It uses the Bellman-Ford algorithm to determine the best path.
It periodically sends complete routing tables to all connected devices.
17. Refer to the exhibit. Host A is unable to access the Internet. What is the reason for this?
-The Fa0/1 interfaces of the two routers are configured for different subnets.
18. Refer to the exhibit. All interfaces are addressed and functioning correctly. The network administrator runs the tracert command on host A. Which two facts could be responsible for the output of this command? (Choose two.)
The entry for 192.168.2.0/24 is missing from the routing table of R1.
The entry for 192.168.2.0/24 is missing from the routing table of R2.
19. What are two functions of a router? (Choose two.)
It forwards data packets toward their destination.
It acts as an intersection between multiple IP networks.
20. Which statement is true about the RIPv1 protocol?
It excludes subnet information from the routing updates.
21. Refer to the exhibit. To implement the RIPv2 protocol, the network administrator runs the commands as displayed. However, the show ip protocol command fails to display any output. How can the administrator solve the problem that is indicated by the lack of output from this command?
Specify the network for which RIP routing has to be enabled.
22. Refer to the exhibit. An administrator is adding a new subnet of 50 hosts to R3. Which subnet address should be used for the new subnet that provides enough addresses while wasting a minimum of addresses?
192.168.1.64/26
23. Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration changes will correct the problem? (Choose two.)
Configure the routers in the same area.
Match the hello and dead timers on both routers.
24. What two routing protocols use a hierarchal network topology? (Choose two.)
IS-IS
OSPF
25. Refer to the exhibit. Router R2 is configured properly and all interfaces are functional. Router R1 has been installed recently. Host A is unable to ping host B.
Which procedure can resolve this problem?
Configure a static route on R1 using the IP address of S0/0/0 on R2.
26. All routers in a network are configured in a single OSPF area with the same priority value. No loopback interface has been set on any of the routers. Which secondary value will the routers use to determine the router ID?
The highest IP address among the active interfaces will be used.
27. Which two statements are true for link-state routing protocols? (Choose two.)
Routers that run a link-state protocol can establish a complete topology of the network.
The shortest path first algorithm is used.
28. A router boots and enters setup mode. What is the reason for this?
The configuration file is missing from NVRAM.
29. Refer to the exhibit. The show cdp neighbors command was run at R1. Which two facts about the newly detected device can be determined from the output? (Choose two.)
ABCD is a router that is connected to R1.
The device is connected at the Serial0/0/1 interface of R1.
30. What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.)
The routers must agree on the network type.
The routers must use the same dead interval.
31. Refer to the exhibit. A ping between host A and host B is successful, but pings from host A to operational hosts on the Internet fail. What is the reason for this problem?
One of the default routes is configured incorrectly.
32. What two routing protocols will produce a shortest path first tree? (Choose two.)
IS-IS
OSPF
33. Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose three.)
The AD of EIGRP routes has been manually changed to a value other than the default value.
Router1 is running both the EIGRP and OSPF routing process.
No default route has been configured.
34. Refer to the exhibit. What action will R2 take for a packet that is destined for 192.168.2.0?
It will forward the packet to R1.
35. Refer to the exhibit. A router learns a route to the 192.168.6.0 network, as shown in the output of the show ip rip database command. However, upon running the show ip route command, the network administrator sees that the router has installed a different route to the 192.168.6.0 network learned via EIGRP. What could be the reason for the missing RIP route?
Compared to RIP, EIGRP has a lower administrative distance.
36. Which two components are used to determine the router ID in the configuration of the OSPF routing process? (Choose two.)
ans:
the highest IP address of any logical interface
the highest IP address of any physical interface
37. Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administrator is connected to the router, which password should the administrator enter at the R1> prompt to access the privileged EXEC mode?
ans:
Cisco789
38. Which routing protocol maintains a topology table separate from the routing table?
ans:
EIGRP
39. Refer to the exhibit. Which summarization should R1 use to advertise its networks to R2?
ans:
192.168.0.0/22
40. Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29 are unable to access each other. What can be the cause of this problem?
ans:
RIPv1 does not support discontiguous networks.
41. Refer to the exhibit. All routers are properly configured to use the EIGRP routing protocol with default settings, and the network is fully converged. Which statement correctly describes the path that the traffic will use from the 10.1.1.0/24 network to the 10.1.2.0/24 network?
ans:
The traffic will be load-balanced between A-B-D and A-C-D.
42. A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?
ans:
B(config)# router rip
B(config-router)# passive-interface S0/0
43. Which two statements are correct about the split horizon with poison reverse method of routing loop prevention? (Choose two.)
ans:
It assigns a value that represents an infinite metric to the poisoned route.
It sends back the poisoned route update to the same interface from where it was received.
44. Refer to the exhibit. The 10.4.0.0 network fails. What mechanism prevents R2 from receiving false update information regarding the 10.4.0.0 network?
ans:
split horizon
45. Refer to the exhibit. How many routes are ultimate routes?
ans:
5
46. Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)
ans:
All routes are stable.
The show ip eigrp topology command has been run on R1.
47. A router has learned two equal cost paths to a remote network via the EIGRP and RIP protocols. Both protocols are using their default configurations. Which path to the remote network will be installed in the routing table?
ans:
the path learned via EIGRP
48. Which two statements are true about the EIGRP successor route? (Choose two.)
ans:
It may be backed up by a feasible successor route.
It is used by EIGRP to forward traffic to the destination.
49. Refer to the exhibit. The output of the show ip route command for router R1 is displayed. What action will the router take for a packet that is destined for 192.168.1.5?
ans:
It will forward the packet to the default gateway.
50. Refer to the exhibit. The hosts that are connected to R2 are unable to ping the hosts that are connected to R1. How can this problem be resolved?
ans:
Configure the R2 router interfaces for area 0.
51. In a lab test environment, a router has learned about network 172.16.1.0 through four different dynamic routing processes. Which route will be used to reach this network?
ans:
D 172.16.1.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Serial0/0/0
52. Refer to the exhibit. Which two facts can be derived from this output? (Choose two.)
ans:
Three network devices are directly connected to Router2.
The serial interface between Router2 and Router3 is up.
53. How does route poisoning prevent routing loops?
ans:
Failed routes are advertised with a metric of infinity.
54. Refer to the exhibit. A network administrator wants to reduce the size of the routing table of R1. Which partial routing table entry in R1 represents the route summary for R2, without including any additional subnets?
ans:
10.0.0.0/22 is subnetted, 1 subnets
D 10.5.0.0[90/205901] via 192.168.1.2, S0/0/0
55. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
ans:
10.0.0.0/8
192.168.2.0/24
56. Refer to the exhibit. Although R2 is configured correctly, host A is unable to access the Internet. What are two static routes that can be configured on R1, either of which would enable Internet connectivity for host A? (Choose two.)
ans:
ip route 0.0.0.0 0.0.0.0 Fa0/1
ip route 0.0.0.0 0.0.0.0 10.1.1.2
57. Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?
ans:
Router4
58. Which statement is true about the metrics used by routing protocols?
ans:
A metric is a value used by a particular routing protocol to compare paths to remote networks.
59. Refer to the exhibit. Which two components are required to complete the configuration? (Choose two.)
ans:
a DTE device
a V.35 cable
Thursday, July 9, 2009
CCNA1 Final v1(Lastest in Jun 2009)
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2.
Which three IPv4 addresses represent valid network addresses for a subnet? (Choose three.)
(true answer)=>192.168.9.64/28
192.168.9.146/28
(true answer)=>192.168.9.96/28
192.168.9.129/26
192.168.9.51/26
(true answer)=>192.168.9.64/26
3
Refer to the exhibit. Which two facts can be determined about the topology? (Choose two.)
(true answer)=>Four collision domains are present.
One logical network is represented.
(true answer)=>Two broadcast domains are present.
Three networks are needed.
Three logical address ranges are required.
4
Refer to the exhibit. Which logical topology describes the exhibited network?
star
(true answer)=>ring
point-to-point
multi-access
5
Refer to the exhibit. At which OSI layer is serial interface 0/0/1 experiencing problems?
(true answer)=>Layer 1
Layer 2
Layer 3
Layer 4
6
Refer to the exhibit. Which two statements describe the information that is represented in the header? (Choose two.)
This is a server response.
The UDP protocol is being used.
(true answer)=>The destination port indicates a Telnet session.
(true answer)=>The return segment will contain a source port of 23.
The next session originated from the client of this session will use the source port number 13358.
7
Refer to the exhibit. Host B was powered off. What change will occur in the MAC table of the switch?
The table will remain unaffected.
(true answer)=>The switch will remove the MAC address at Fa0/19.
The switch will retain the MAC address until host B is powered on again.
The switch will rebuild the MAC table by assigning the FFFF.FFFF.FFFF address to port Fa0/19.
8
What information is contained in the header of Layer 3 to help data delivery?
(true answer)=>port number
device physical address
destination host logical address
virtual connection identifier
9
Refer to the exhibit. On the basis of the provided configuration, which statement is true?
(true answer)=>The IP address of host A is properly assigned to the local NIC.
Host A can send packets to any host on the local network only.
Host A can send packets to any host on the local and remote network.
Host A can ping successfully the default gateway address of 192.168.1.1.
10
As network administrator, what is the subnet mask that allows 510 hosts given the IP address 172.30.0.0?
255.255.0.0
255.255.248.0
255.255.252.0
(true answer)=>255.255.254.0
255.255.255.0
255.255.255.128
11
Refer to the exhibit. The network administrator remotely accesses the CLI of RouterB from PC1 using a secure connection. Which statement is true about this connection?
The Telnet server process is running on PC1.
Only the exchange of the Telnet username and password is encrypted.
The GET request is sent to RouterA to retrieve data.
(true answer)=>The SSH service is used to connect PC1 to RouterB.
12
A network administrator wants to restrict access to the router privileged EXEC mode. Which password should the administrator use?
(true answer)=>enable
aux
console
VTY
13
Refer to the exhibit. Which option correctly describes the purpose for the IP address that is assigned to VLAN 100?
provides remote switch management
(true answer)=>identifies the subnet for hosts in VLAN 100
serves as default gateway to hosts in VLAN 100
creates a routing table entry for packets to network 192.168.0.0
14
Which type of media is immune to EMI and RFI? (Choose two.)
10 Base-T
10 Base-2
10 Base-5
(true answer)=>100 Base-FX
100 Base TX
(true answer)=>1000 Base LX
15
Which device should be used for routing a packet to a remote network?
access switch
DHCP server
hub
(true answer)=>router
16
Refer to the exhibit. To create the initial configuration, a network technician connected host A to the router using the connection that is shown. Which statement is true about this connection?
It terminates at the Ethernet port of the router.
(true answer)=>It provides out-of-band console access.
It terminates at the serial interface of the router.
It requires a Telnet client on host A to access the router.
17
Which three IPv4 addresses represent a broadcast for a subnet? (Choose three.)
(true answer)=>172.16.4.63 /26
172.16.4.129 /26
(true answer)=>172.16.4.191 /26
172.16.4.51 /27
(true answer)=>172.16.4.95 /27
172.16.4.221 /27
18
Refer to the exhibit. On the basis of the IP configuration that is shown, what is the reason that Host A and Host B are unable to communicate outside the local network?
Host A was assigned a network address.
Host B was assigned a multicast address.
Host A and Host B belong to different networks.
(true answer)=>The gateway address was assigned a broadcast address.
19
Because of a security violation, the router password must be changed. What information can be learned from these configuration entries? (Choose two.)
Router(config)# line vty 0 4
Router(config-line)# password arj15
Router(config-line)# login
This configuration allows users to connect by using a modem.
Users must specify which line, 0 or 4, they wish to connect to when making a connection.
(true answer)=>This configuration allows users to connect to the router via the use of the telnet command.
(true answer)=>This configuration allows five users to make simultaneous connections to this router.
www.true answer
The configured password is automatically encrypted on the router.
20
Refer to the exhibit. Which statement is true about e-mail transmission between computer A and the server?
(true answer)=>The server will use HTTP to push messages to computer A.
Computer A will connect to the server and retrieve inbound messages by using POP.
The e-mail client on computer A uses SMTP to pull inbound messages from the server and push outbound messages to the server.
A connection is established from computer A to the server on port 21 and the client software uses FTP to transmit messages as discreet files.
21
Which OSI layer uses a connection-oriented protocol to ensure reliable delivery of data?
application layer
presentation layer
session layer
(true answer)=>transport layer
22
Refer to the exhibit. The network administrator wants to remotely access the CLI of the router from PC1 using modem 1. Which port of the router should be connected to modem 2 to enable this access?
console
Ethernet
(true answer)=>auxiliary
serial
23
In a Cisco IOS device, where is the startup-configuration file stored?
Flash
(true answer)=>NVRAM
RAM
ROM
24
Which statement is true about the running configuration file in a Cisco IOS device?
(true answer)=>It affects the operation of the device immediately when modified.
It is stored in NVRAM.
It should be deleted using the erase running-config command.
It is automatically saved when the router reboots.
25
Refer to the exhibit. What is the correct destination socket number for a web page request from Host A to the web server?
00-08-a3-b6-ce-46
(true answer)=>198.133.219.25:80
http://www.cisco.com
C 198.133.219.0/24 is directly connected, FastEthernet0/0
26
A host is transmitting a video over the network. How does the transport layer allow this host to use multiple applications to transmit other data at the same time as the video transmission?
It uses error control mechanisms.
(true answer)=>It uses a connectionless protocol only for multiple simultaneous transmissions.
It uses multiple Layer 2 source addresses.
It uses multiple port numbers.
27
Refer to the exhibit. A router, the table of which is shown, receives a packet that is destined for 192.168.9.4. How will the router treat the packet?
It will drop the packet.
It will forward the packet via FastEthernet 0/1.
(true answer)=>It will forward the packet to the next hop address.
It will forward the packet to 172.16.2.0
28
Refer to the exhibit. The host was disconnected from switch 2 and connected to switch 1. Which combination of IP address, subnet mask, and default gateway should be assigned to this host to allow it to function in the network?
IP address: 10.10.9.37 Subnet mask: 255.255.255.240 Default gateway: 10.10.9.35
(true answer)=>IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
IP address: 10.10.9.29 Subnet mask: 255.255.255.248 Default gateway: 10.10.9.35
IP address: 10.10.9.32 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
IP address: 10.10.9.37 Subnet mask: 255.255.255.224 Default gateway: 196.1.105.6
IP address: 10.10.9.63 Subnet mask: 255.255.255.224 Default gateway: 10.10.9.35
29
A user types the enable command. What task can be performed at the privileged EXEC mode?
Configure the device.
Configure individual interfaces.
Configure individual terminal lines.
(true answer)=>Issue show and debug commands.
30
What are three characteristics of CSMA/CD? (Choose three.)
(true answer)=>It monitors the media for presence of a data signal.
(true answer)=>After detecting a collision, hosts can resume transmission after a random timer has expired.
(true answer)=>A jam signal is used to ensure that all hosts are aware that a collision has occurred.
Devices can be configured with a higher transmission priority.
Data is transmitted only when the data signal is present.
It uses a token system to avoid collisions.
31
Which three statements characterize the transport layer protocols? (Choose three.)
(true answer)=>TCP and UDP port numbers are used by application layer protocols.
TCP uses port numbers to provide reliable transportation of IP packets.
UDP uses windowing and acknowledgments for reliable transfer of data.
(true answer)=>TCP uses windowing and sequencing to provide reliable transfer of data.
TCP is a connection-oriented protocol. UDP is a connectionless protocol.
32
Refer to the exhibit. The headers added at each layer are shown. Which layer adds the destination and source process numbers to ensure that data is delivered to the correct application?
physical layer
data link layer
network layer
(true answer)=>transport layer
33
Refer to the exhibit. In a network, Hosts A and B are exchanging segments at the transport layer. Which two statements are true about this exchange? (Choose two.)
Host A is transferring files to host B using FTP.
(true answer)=>Host A will send the next segment containing data for this session starting with byte number 11.
The segment from the destination host indicates that 11 bytes have been received successfully.
(true answer)=>Host A is initiating a Telnet session to host B.
Host B can send the next segment of the data starting with byte number 2.
34
During the encapsulation process of the TCP/IP model, which layer will attach the IP header to the data?
application
transport
(true answer)=>internet
network access
35
Refer to the exhibit. The network containing router B is experiencing problems. A network associate has isolated the issue in this network to router B. What action can be preformed to correct the network issue?
(true answer)=>issue the clock rate command on interface Serial 0/0/0
issue the description command on interface Serial 0/0/1
issue the ip address command on interface FastEthernet 0/0
issue the no shutdown command on interface FastEthernet 0/1
36
During the encapsulation process, what identifiers are added at the transport layer?
source and destination IP addresses
source and destination MAC addresses
source and destination port numbers
source and destination channel identifiers
37
Refer to the exhibit. A network technician wants to connect host A to the console of a Cisco switch to initialize the configuration. What type of cable is required for this connection?
straight-through cable
crossover cable
(true answer)=>rollover cable
serial cable
38
How does the transport layer allow a host to maintain multiple, simultaneous communication streams across different applications?
It uses error control mechanisms.
(true answer)=>It uses a connectionless protocol only for multiple simultaneous transmissions.
It uses multiple Layer 2 source addresses.
It uses multiple ports.
39
While configuring a router, a network technician wants to name the router. Which prompt should the technician see when entering the hostname command?
Router>
Router#
(true answer)=>Router(config)#
Router(config-line)#
40
Refer to the exhibit. The NAT functionality of the router is enabled to provide Internet access to the PC. However, the PC is still unable to access the Internet. Which IP address should be changed to 209.165.201.1 to enable the PC to access the Internet?
192.168.1.191
192.168.1.101
192.168.1.1
(true answer)=>192.168.1.254
41
Which option would be a valid router hostname according to Cisco naming convention guidelines?
Rtr1_Bldg201
(true answer)=>Building_201
Router 1
1st_Floor_Router_409_West_State_Street
42
An administrator has made changes to a device. The changes did not have the desired effect. What can the administrator do to restore the configuration saved in NVRAM?
Issue the erase flash command.
(true answer)=>Issue the reload command and respond no to the prompt that follows.
Issue the erase start-up config command.
Issue the copy running-config start-up config command.
43
Refer to the exhibit. Each media link is labeled. What type of cable should be used to connect the different devices?
Connection 1 - rollover cable Connection 2 - straight-through cable Connection 3 - crossover cable
Connection 1 - straight-through cable Connection 2 - crossover cable Connection 3 - rollover cable
Connection 1 - crossover cable Connection 2 - rollover cable Connection 3 - straight-through cable
Connection 1 - crossover cable Connection 2 - straight-through cable Connection 3 - rollover cable
(true answer)=>Connection 1 - straight-through cable Connection 2 - straight-through cable Connection 3 - straight-through cable
44
Refer to the exhibit. Host A wants to access the Internet. Which combination of a Layer 2 address and a Layer 3 address will enable this access from host A?
Destination MAC: 0030.8596.DE83 Default gateway: 209.165.202.130
Destination MAC: 0030.8596.DE82 Default gateway: 172.16.9.2
(true answer)=>Destination MAC: 0030.8517.44C4 Default gateway: 172.16.1.1
Destination MAC: 0030.8517.44C4 Default gateway: 209.165.202.130
45
Refer to the exhibit. Cable 1 and cable 2 have the ends wired for specific physical layer requirements. The table lists each segment by number and the cable which has been installed by the network technician between the network components on that segment. From the data given, which segments have the correct cable installed? (Choose three.)
(true answer)=>segment1
segment2
(true answer)=>segment3
(true answer)=>segment4
segment5
46
Refer to the exhibit. Which logical topology describes the exhibited network?
star
(true answer)=>ring
point-to-point
multi-access
47
Refer to the exhibit. The PC, the routing table of which is displayed, is configured correctly. To which network device or interface does the IP address 192.168.1.254 belong?
PC
switch
(true answer)=>router interface fa0/0
router interface fa0/1
48
Refer to the exhibit. The network administrator uses the netstat command to display the open, active, and running TCP connections on a networked host. The exhibit displays the output of this command. Which two facts can be determined from this output for accessing www.cisco.com? (Choose two.)
The source port indicates that the session is an http session.
The connection is not successful.
(true answer)=>The source port of the host is 3166.
(true answer)=>The destination port is 80.
The source port does not support communication with the destination port that is listed.
The source port indicates that a UDP session has been initiated.
49
The network administrator wants to configure the port number used by an application on a server to make it accessible by clients. Which range of port numbers would normally be assigned for this application?
0 to 255
(true answer)=>0 to 1023
1024 to 49151
49152 to 65535
50
Refer to the exhibit. A user wants to view the current configuration. The output of the ipconfig/all command is displayed in the exhibit. What three facts can be determined from the output? (Choose three.)
The IP address is obtained from the DHCP server.
(true answer)=>This PC cannot communicate with other networks.
(true answer)=>The network can have 14 hosts.
The prefix of the computer address is /25.
The IP address is routable on the Internet.
The assigned address is a private address.
51
Refer to the exhibit. What is required on host A for a network technician to create the initial configuration on Router1?
an FTP client
a Telnet client
(true answer)=>a terminal emulation program
a web browser
CCNA 2 FINAL (New New New)
www.ccna4u.net || www.ccna4u.info || www.ccna4u.org || www.9tut.info
1. Refer to the exhibit. The output of the show ip route command for three routers on a network is displayed. All routers are operational, pings are not blocked on this network, and no default routes are installed. Which two pings will fail? (Choose two.)
from R1 to 172.16.1.1
** from R1 to 192.168.3.1
from R2 to 192.168.1.1
from R2 to 192.168.3.1
** from R3 to 192.168.1.1
172.16.4.0/24
2. A router that uses the RIP routing protocol has an entry for a network in the routing table. It then receives an update with another entry for the same destination network but with a lower hop count. What action will the router take for this new update?
** It will append the update information to the routing table.
It will invalidate the entry for that network in the routing table.
It will replace the existing routing table entry with the new information.
It will ignore the new update.
3. Which two statements are true for OSPF Hello packets? (Choose two.)
They negotiate correct parameters among neighboring interfaces.
They are used for dynamic neighbor discovery.
They use timers to elect the designated router with the fastest link.
** They are received from all routers on the network and used to determine the complete network topology.
** They are used to maintain neighbor relationships.
4. A network administrator needs to configure a single router to loadbalance the traffic over unequal cost paths. Which routing protocol should the administrator use?
EIGRP
OSPF
RIPv1
** RIPv2
5. Which two statements are correct about the split horizon with poison reverse method of routing loop prevention? (Choose two.)
It is enabled by default on all Cisco IOS implementations.
** It assigns a value that represents an infinite metric to the poisoned route.
** It sends back the poisoned route update to the same interface from where it was received.
It instructs routers to hold all changes that might affect routes, for a specified period of time.
It limits the number of hops a packet can traverse through the network before it is discarded.
6. Refer to the exhibit. The show cdp neighbors command was run on one of the devices as shown. Based on this information, which two facts can be determined? (Choose two.)
** The command was run on the router.
ABCD is a non CISCO device.
Layer 3 connectivity between two devices exists.
ABCD supports routing capability.
** ABCD is connected to the Fa0/0 interface of the neighboring device.
7. Refer to the exhibit. The network has three connected routers: R1, R2 and R3. The routes of all three routers are displayed. What can be verified from the output?
R1 and R3 are connected to each other via the S0/0/0 interface.
The IP address of the S0/0/0 interface of R1 is 10.1.1.2.
The IP address of the S0/0/1 interface of R2 is 10.3.3.2.
** R2 is connected to the S0/0/1 interface of R3.
8. Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose three.)
The route to network 172.16.0.0 has an AD of 156160.
Network 192.168.0.16 can best be reached using FastEthernet0/0.
**The AD of EIGRP routes has been manually changed to a value other than the default value.
** Router1 is running both the EIGRP and OSPF routing process.
Network 172.17.0.0 can only be reached using a default route.
** No default route has been configured.
9. Refer to the exhibit. All the routers are properly configured to use the RIP routing protocol with default settings, and the network is fully converged. Router A is forwarding data to router E. Which statement is true about the routing path?
Router A will send the data via the ADE path that is listed in the routing table.
Router A will loadbalance the traffic between ABE and ACE.
** Router A will determine that all paths have equal metric cost.
Router A will send the data through ADE and keep ABE and ACE as the backup paths.
10. Refer to the exhibit. The network administrator has run the following command on R1.
R1# ip route 192.168.2.0 255.255.255.0 172.16.1.2What is the result of running this command?
** Traffic for network 192.168.2.0 is forwarded to 172.16.1.2.
This route is automatically propagated throughout the entire network.
Traffic for all networks is forwarded to 172.16.1.2.
The command invokes a dynamic routing protocol for 192.168.2.0.
11. Refer to the exhibit. The network administrator is planning IP addressing of a new network. What part of this addressing scheme must be changed to allow communication between host A and the server?
** the IP address of the server
the default gateway of host A
the IP address of host A
the default gateway of the server
12. Refer to the exhibit. A network administrator has configured OSPF using the following command:
network 192.168.1.32 0.0.0.31 area 0
Which router interface will participate in OSPF?
FastEthernet 0/0
FastEthernet 0/1
** Serial 0/0/0
Serial 0/0/1
13. Refer to the exhibit. All routers are configured to run RIPv1 and are fully converged. Which routing updates will be received by R3?
updates for 192.168.1.0/24 and 192.168.2.0/24
updates for 172.16.2.0/24 and 172.16.3.0/24
** updates for 172.16.1.0/24, 172.16.2.0/24 and 172.16.3.0/24
updates for 172.16.0.0/16
14. Refer to the exhibit. Both routers are using the RIP protocol. Devices on the 192.168.1.1 network can ping the S0/0/0 interface on R2 but cannot ping devices on the 192.168.2.1 network. What is a possible cause of this problem?
** The routers are configured with different versions of RIP.
R2 is not forwarding the routing updates.
The R1 configuration should include the no autosummary command.
The maximum path number has been exceeded.
15. When a router boots, what is the default order to locate the Cisco IOS if there is no boot system command?
ROM, TFTP server, flash
flash, TFTP server, RAM
** flash, NVRAM, TFTP server
ROM, flash, TFTP server
16. Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?
Router1
Router2
Router3
** Router4
17. Which mechanism helps to avoid routing loops by advertising a metric of infinity?
** route poisoning
split horizon
holddown timer
triggered updates
18. Refer to the exhibit. What is the meaning of the highlighted value 120?
It is the metric that is calculated by the routing protocol.
It is the value that is used by the DUAL algorithm to determine the bandwidth for the link.
** It is the administrative distance of the routing protocol.
It is the holddown time, measured in seconds, before the next update.
19. Refer to the exhibit. A network administrator successfully pings R1 from R3. Next, the administrator runs the show cdp neighbors command on R3. The output of this command is displayed.What are two reasons for the absence of R1 in the output? (Choose two.)
There is a Layer 2 connectivity problem between R1 and R3.
The Fa0/0 interface of R1 is configured with an incorrect IP address.
**The no cdp run command has been run at R1.
**The no cdp enable command has been run at Fa0/1 interface of R3.R1 is powered off.
20. Refer to the exhibit. A device is required to complete the connection between router R1 and the WAN. Which two devices can be used for this? (Choose two.)
** a CSU/DSU device
** a modem
an Ethernet switch
a hub
a bridge
21. In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of the RIP routing process. Which route will be installed in the routing table after the discovery of all four paths?
R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial 0/1/0
R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial 0/0/0
** R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial 0/0/1
R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial 0/1/1
22. Refer to the exhibit. A network administrator accesses router R1 from the console port to configure a newly connected interface. What passwords will the network administrator need to enter to
the Cisco123 password only
the Cisco789 password only
the Cisco001 password only
** the Cisco001 password and the Cisco789 passwords
the Cisco001 password and the Cisco123 passwords
23. Refer to the exhibit. A network administrator adds this command to router R1: ip route 192.168.2.0 255.255.255.0 S0/0/0. What is the result of adding this command?
This route is automatically propagated throughout the network.
The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0.
** A static route is established.
The traffic for all Class C networks is forwarded to 172.16.1.2.
24. Refer to the exhibit. The router receives a packet that is destined for 192.168.5.79. How will the router handle this packet?
It will forward the packet via the Serial0/0/1 interface.
It will forward the packet via the FastEthernet0/0 interface.
It will forward the packet via the Serial0/0/0 interface.
** It will drop the packet.
25. Which two statements are true about classless routing protocols? (Choose two.)
** They can be used for discontiguous subnets.
** They can forward supernet routes in routing updates.
They cannot implement classful routes in routing tables.
They use only a hop count metric.
They do not include the subnet mask in routing updates.
26. Refer to the exhibit. How many routes are child routes?
1
3
** 4
6
27. A router has EIGRP configured as the only routing protocol. In what two ways does EIGRP respond if there is no feasible successor route to a destination network and the successor route fails? (Choose two.)
It broadcasts hello packets to all routers in the network to reestablish neighbor adjacencies.
** It sends queries to adjacent neighbors until a new successor route is found.
It immediately sends its entire routing table to its neighbors.
It sends queries to adjacent neighbors until the lost route is unknown to the neighbors.
** It automatically forwards traffic to a fallback default route until a successor route is found.
28. Refer to the exhibit. Packets destined to which two networks will require the router to perform a recursive lookup? (Choose two.)
** 10.0.0.0/8
64.100.0.0/16
128.107.0.0/16
172.16.40.0/24
192.168.1.0/24
** 192.168.2.0/24
29. Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)
The administrative distance of EIGRP has been set to 50.
** All routes are stable.
** The show ip eigrp topology command has been run on R1.
The serial interface between the two routers is down.
Each route has one feasible successor.
30. Refer to the exhibit. All routers are properly configured with default configurations and are running the OSPF routing protocol. The network is fully converged. A host on the 192.168.3.0/24 network is communicating with a host on the 192.168.2.0/24 network. Which path will be used to transmit the data?
The data will be transmitted via R3-R2.
** The data will be transmitted via R3-R1-R2.
The traffic will be loadbalanced between two paths — one via R3-R2, and the other via R3-R1-R2.
The data will be transmitted via R3-R2, and the other path via R3-R1-R2 will be retained as the backup path.
31. A network administrator has enabled RIP on routers B and C in the network diagram. Which of the following commands will prevent RIP updates from being sent to Router A?
** A(config)# router rip
A(configrouter)# passiveinterface S0/0
B(config)# router rip
B(configrouter)# network 192.168.25.48
B(configrouter)# network 192.168.25.64
A(config)# router rip
A(configrouter)# no network 192.168.25.32
B(config)# router rip
B(configrouter)# passiveinterface S0/0
A(config)# no router rip
32. Refer to the exhibit. The hosts on the R1 LAN are unable to access the Internet. What is incorrectly configured?
the IP address of the Fa 0/0 interface at R1
the IP address of the S 0/0/1 interface at R2
** the IP address of the S 0/0/0 interface at R1
the subnet mask of the S 0/0/1 interface at R2
33. Refer to the exhibit. A ping from R1 to 10.1.1.2 is successful, but a ping from R1 to 192.168.2.0 fails. What is the cause of this problem?
There is no gateway of last resort at R1.
The serial interface between the two routers is down.
** A default route is not configured on R1.
The static route for 192.168.2.0 is incorrectly configured.
34. Refer to the exhibit. The network administrator has run the show ip protocol command on R1. What can be determined from the exhibited output?
The router is using RIPv2.
The router is not forwarding routing updates.
The router is receiving updates for both versions of RIP.
** The FastEthernet0/0 interface is down.
35. Refer to the exhibit. All routers are configured to use the EIGRP routing protocol with default settings, all routes are advertised on all routers, and the network is fully converged. Which path will the data take to travel between 172.16.1.0/24 and 192.168.100.0/24?
It will travel via A, B, and C.
** It will travel via A, F, E, D, and C.
It will travel via A, G, H, and C.
The traffic will be loadbalanced on all paths.
36. Refer to the exhibit. All routers are configured for OSPF area 0. The network administrator requires that R2 always be the DR and maintain adjacency.Which two configurations can achieve this? (Choose two.)
Change the OSPF area of R2 to a higher value.
Change the router ID for R2 by assigning the IP address 172.16.30.5/24 to the Fa0/0 interface.
** Change the priority values of the Fa0/0 interfaces of R1 and R3 to 0.
** Configure a loopback interface on R2, with an IP address higher than any IPaddress on the other routers.
Configure R1 and R3 with an IP address whose value is higher than that of R2.
37. Refer to the exhibit. Host A is unable to access the Internet, and troubleshooting has revealed that this is due to an addressing problem. What is incorrectly configured in this network?
the IP address of the Fa 0/0 interface of R1
the subnet mask of the S 0/0/0 interface of R1
** the IP address of the S 0/0/0 interface of R1
the subnet mask of the S0/0/0 interface of R2
38. Refer to the exhibit. All routes are advertised and fully operational on all routers. Which statement is true about the path that the data will take from router A to router B?
** If EIGRP is used with default configurations, the data will be equally distributed between two paths — A, D, B and A, C, D.
If RIPv1 is used with default configurations, the data will be loadbalanced on all paths.
If EIGRP and OSPF are both used with default configurations, the data will be sent through paths learned by the OSPF protocol.
If RIPv2 is used with default configurations, the data will be equally distributed between two paths — A, D, B and A, C, D.
39. Refer to the exhibit. The interfaces of all routers are configured for OSPF area 0. R3 can ping R1, but the two routers are unable to establish a neighbor adjacency. What should the network administrator do to troubleshoot this problem?
Check if the interfaces of the routers are enabled.
** Check the hello and dead intervals between the routers.
Check the process ID of both routers.
Check if CDP is enabled on all the routers.
40. Refer to the exhibit. What information can be determined from the highlighted output?
R1 is originating the route 172.30.200.32/28.
** Automatic summarization is disabled.
The 172.30.200.16/28 network is one hop away from R1.
A classful routing protocol is being used.
41. Which two router component and operation pair are correctly described? (Choose two.)
DRAM loads the bootstrap
RAM stores the operating system
Flash executes diagnostics at bootup
** NVRAM stores the configuration file
ROM stores the backup configuration file
** POST runs diagnostics on hardware modules
42. Which routing protocol by default uses bandwidth and delay to calculate the metric of a route?
RIPv1
RIPv2
OSPF
** EIGRP
43. Two routers need to be configured within a single OSPF area. Which two components need to be configured on both routers to achieve this? (Choose two.)
the same process ID
** the same area ID
** network addresses and wildcard masks
the same router ID
the same loop back address
44. Refer to the exhibit. The networks that are connected to R1 have been summarized for R2 as 192.168.136.0/21. Which packet destination address will R2 forward to R1?
192.168.135.1
**192.168.142.1
192.168.144.1
192.168.128.1
45. Refer to the exhibit. R1 is running RIP with default parameters. R1 has learned four different paths with the same metrics to network 192.168.6.0. Which path or paths will R1 use to forward a packet that is destined to 192.168.6.10?
** the first path that the router learned.
only the first two of the four paths that the router learned.
the last path that the router learned.
all four paths.
46. What are two functions of a router? (Choose two.)
** It connects multiple IP networks.
It controls the flow of data via the use of Layer 2 addresses.
** It determines the best path to send packets.
It manages the VLAN database.
It increases the size of the broadcast domain.
47. Refer to the exhibit. Which statement is true about the routing process for this network?
A packet leaves interface Fa0/0 of R1 with the source MAC address as 000C.3010.9260.
** The packet leaves interface Fa0/0 of R1 with the source MAC address as 000C.3010.9260.
The no shutdown command needs to run on the Fa0/0 interface of R1.
The Fa0/0 interface of R2 could be configured with the IP address 172.16.4.1/24.
48. Refer to the exhibit. A network administrator has run the show interface command. The output of this command is displayed. What is the first step that is required to make this interface operational?
Switch the cable with a known working cable.
** Issue the no shutdown command on the interface.
Configure the interface as a loopback interface.
Set the encapsulation for the interface.
49. Refer to the exhibit. R1 is configured properly for a single area OSPF, and R2 has been recently installed in the network. Which set of commands is required to configure a single area OSPF for the networks that are connected to R2?
** R2(config)# router ospf 1
R2(configrouter)# network 192.168.2.0 0.0.0.255 area 0
R2(configrouter)# network 10.1.1.0 0.0.0.3 area 0
R2(config)# router ospf 1
R2(configrouter)# network 192.168.2.0 0.0.0.255 area 0
R2(config)# router ospf 2
R2(configrouter)# network 10.1.1.0 0.0.0.3 area 0
R2(config)# router ospf 1
R2(configrouter)# network 192.168.2.0 0.0.0.255 area 0
R2(configrouter)# network 10.1.1.0 0.0.0.3 area 1
R2(config)# router ospf 1
R2(configrouter)# network 192.168.2.0 0.0.0.255 area 0
R2(configrouter)# network 10.0.0.0 0.0.0.3 area 1
50. Refer to the exhibit. The command ip route 0.0.0.0 0.0.0.0 S0/0/0 is run on router R2. What are the two results of this command? (Choose two.)
** A static route will be updated in the routing table.
The traffic from the Internet will be directed to R2.
The traffic from the source network 172.16.0.0/22 will be blocked.
** The route will be specified as the default route for all networks not defined in the routing table.
All the broadcasts will be forwarded via the S0/0/0 interface of R2.
51. Which three statements are true regarding the encapsulation and deencapsulation of packets when traveling through a router? (Choose three.)
** The router modifies the TTL field, decrementing it by one.
The router changes the source IP to the IP of the exit interface.
** The router maintains the same source and destination IP.
** The router changes the source physical address to the physical address of the exit interface.
The router changes the destination IP to the IP of the exit interface.
The router sends the packet out all other interfaces, besides the one it entered the router on.
52. What are two tasks that must be completed before two routers can use OSPF to form a neighbor adjacency? (Choose two.)
The routers must elect a designated router.
** The routers must agree on the network type.
** The routers must use the same dead interval.
The routers must exchange link state requests.
The routers must exchange database description packets.
53. Refer to the exhibit. Although both the routers can ping the serial interface of their neighbors, they are unable to ping the Ethernet interfaces of other routers. Which two statements are true for this network? (Choose two.)
The administrative distance has been set to 50 on both routers.
** R2 is learning about network 192.168.1.0.
R1 is learning about network 192.168.2.0.
The network 10.1.1.0 command has not been run on both routers.
** Autosummarization is enabled on both routers.
54. Which two situations require the use of a linkstate protocol? (Choose two.)
** Fast convergence of the network is critical.
** The network is very large.
The network administrator has limited knowledge to configure and troubleshoot routing protocols.The network is a flat network.
The capacity of the router is low.
55. Refer to the exhibit. What information can be determined from the displayed output?
EIGRP packets are waiting to be sent to the neighbors.
The adjacencies between the routers are yet to be established.
The IP address 192.168.10.10 is configured at serial interface S0/0/1 of router R2.
** Router R2 is receiving hello packets from a neighbor with the IP address 192.168.10.10 via the R2 S0/0/1 interface.
56. Refer to the exhibit. PC1 is unable to access the Internet. What is the cause of the problem?
An incorrect IP address is configured between the two routers.
No static route is configured on Router2.
** A routing loop has occurred.
No routing protocol is configured on either of the two routers.
57. Refer to the exhibit. What summarization should R2 use to advertise its LAN networks to R1?
172.16.0.0/24
** 172.16.4.0/22
172.16.4.0/23
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