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CCNA Final Exam C

1
...
The output of the show ip route command for three routers on a network is
displayed
...
Which two pings will fail? (Choose two
...
16
...
1
• from R1 to 192
...
3
...
168
...
1
• from R2 to 192
...
3
...
168
...
1

2
...
It then receives
an update with another entry for the same destination network but with a lower hop count
...

• It will invalidate the entry for that network in the routing table
...

• It will ignore the new update
...
Which two statements are true for OSPF Hello packets? (Choose two
...

• They are used for dynamic neighbor discovery
...

• They are received from all routers on the network and used to determine the complete network topology
...


4
...
Which routing protocol should the administrator use?
• EIGRP
• OSPF
• RIPv1
• RIPv2

5
...
)
• It is enabled by default on all Cisco IOS implementations
...

• It sends back the poisoned route update to the same interface from where it was received
...

• It limits the number of hops a packet can traverse through the network before it is discarded
...
Refer to the exhibit
...
Based
on this information, which two facts can be determined? (Choose two
...

• ABCD is a non-CISCO device
...

• ABCD supports routing capability
...


7
...
The network has three connected routers: R1, R2 and R3
...
What can be verified from the output?
• R1 and R3 are connected to each other via the S0/0/0 interface
...
1
...
2
...
3
...
2
...


8
...
Which three statements are true of the routing table for Router1? (Choose three
...
16
...
0 has an AD of 156160
...
168
...
16 can best be reached using FastEthernet0/0
...

• Router1 is running both the EIGRP and OSPF routing process
...
17
...
0 can only be reached using a default route
...


9
...
All the routers are properly configured to use the RIP routing protocol with default
settings, and the network is fully converged
...
Which statement is
true about the routing path?
• Router A will send the data via the A-D-E path that is listed in the routing table
...

• Router A will determine that all paths have equal metric cost
...


10
...
The network administrator has run the following command on R1
...
168
...
0 255
...
255
...
16
...
2What is the result of running this command?
• Traffic for network 192
...
2
...
16
...
2
...

• Traffic for all networks is forwarded to 172
...
1
...

• The command invokes a dynamic routing protocol for 192
...
2
...


CCNA Final Exam C

11
...
The network administrator is planning IP addressing of a new network
...
Refer to the exhibit
...
168
...
32 0
...
0
...
Refer to the exhibit
...
Which routing
updates will be received by R3?
• updates for 192
...
1
...
168
...
0/24
• updates for 172
...
2
...
16
...
0/24
• updates for 172
...
1
...
16
...
0/24 and 172
...
3
...
16
...
0/16

14
...
Both routers are using the RIP protocol
...
168
...
1 network can
ping the S0/0/0 interface on R2 but cannot ping devices on the 192
...
2
...
What is a possible
cause of this problem?
• The routers are configured with different versions of RIP
...

• The R1 configuration should include the no auto-summary command
...


15
...
Refer to the exhibit
...
16
...
32/28?
• Router1
• Router2
• Router3
• Router4

17
...
Refer to the exhibit
...

• It is the value that is used by the DUAL algorithm to determine the bandwidth for the link
...

• It is the hold-down time, measured in seconds, before the next update
...
Refer to the exhibit
...
Next, the administrator
runs the show cdp neighbors command on R3
...
What are two
reasons for the absence of R1 in the output? (Choose two
...

• The Fa0/0 interface of R1 is configured with an incorrect IP address
...

• The no cdp enable command has been run at Fa0/1 interface of R3
...


20
...
A device is required to complete the connection between router R1 and the WAN
...
)
• a CSU/DSU device
• a modem
• an Ethernet switch
• a hub
• a bridge

21
...
168
...
0/24 via the use of
the RIP routing process
...
168
...
0/24 [120/3] via 192
...
110
...
168
...
0/24 [120/2] via 192
...
200
...
168
...
0/24 [120/1] via 192
...
100
...
168
...
0/24 [120/4] via 192
...
101
...
Refer to the exhibit
...
What passwords will the network administrator need to enter to make the
connection and the necessary configuration changes?
• 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
...
A network administrator adds this command to router R1: ip route 192
...
2
...
255
...
0 S0/0/0
...

• The traffic for network 172
...
1
...
168
...
0
...

• The traffic for all Class C networks is forwarded to 172
...
1
...


24
...
The router receives a packet that is destined for 192
...
5
...
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 Serial0/0/0 interface
...


25
...
)
• They can be used for discontiguous subnets
...

• They cannot implement classful routes in routing tables
...

• They do not include the subnet mask in routing updates
...
Refer to the exhibit
...
A router has EIGRP configured as the only routing protocol
...
)
• It broadcasts hello packets to all routers in the network to re-establish neighbor adjacencies
...

• It immediately sends its entire routing table to its neighbors
...

• It automatically forwards traffic to a fallback default route until a successor route is found
...
Refer to the exhibit
...
)
• 10
...
0
...
100
...
0/16
• 128
...
0
...
16
...
0/24
• 192
...
1
...
168
...
0/24

29
...
Which two statements are true based on the exhibited output? (Choose two
...

• All routes are stable
...

• The serial interface between the two routers is down
...


30
...
All routers are properly configured with default configurations and are running the
OSPF routing protocol
...
A host on the 192
...
3
...
168
...
0/24 network
...

• The data will be transmitted 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
...
A network administrator has enabled RIP on routers B and C in the network diagram
...
168
...
48
B(config-router)# network 192
...
25
...
168
...
32
• B(config)# router rip
B(config-router)# passive-interface S0/0
• A(config)# no router rip

32
...
The hosts on the R1 LAN are unable to access the Internet
...
Refer to the exhibit
...
1
...
2 is successful, but a ping from R1 to 192
...
2
...

What is the cause of this problem?
• There is no gateway of last resort at R1
...

• A default route is not configured on R1
...
168
...
0 is incorrectly configured
...
Refer to the exhibit
...
What can
be determined from the exhibited output?
• The router is using RIPv2
...

• The router is receiving updates for both versions of RIP
...


35
...
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
...
16
...
0/24 and 192
...
100
...

• It will travel via A, F, E, D, and C
...

• The traffic will be load-balanced on all paths
...
Refer to the exhibit
...
The network administrator requires that
R2 always be the DR and maintain adjacency
...
)
• Change the OSPF area of R2 to a higher value
...
16
...
5/24 to the Fa0/0 interface
...

• Configure a loopback interface on R2, with an IP address higher than any IPaddress on the other routers
...


37
...
Host A is unable to access the Internet, and troubleshooting has revealed that this
is due to an addressing problem
...
Refer to the exhibit
...
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 EIGRP and OSPF are both used with default configurations, the data will be sent through paths learned
by the OSPF protocol
...


39
...
The interfaces of all routers are configured for OSPF area 0
...
What should the network administrator do to
troubleshoot this problem?
• Check if the interfaces of the routers are enabled
...

• Check the process ID of both routers
...


40
...
What information can be determined from the highlighted output?
• R1 is originating the route 172
...
200
...

• Automatic summarization is disabled
...
30
...
16/28 network is one hop away from R1
...


41
...
)
• 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
...
Two routers need to be configured within a single OSPF area
...
)
• the same process ID
• the same area ID
• network addresses and wildcard masks
• the same router ID
• the same loop back address

44
...
The networks that are connected to R1 have been summarized for R2 as
192
...
136
...
Which packet destination address will R2 forward to R1?
• 192
...
135
...
168
...
1
• 192
...
144
...
168
...
1

45
...
R1 is running RIP with default parameters
...
168
...
0
...
168
...
10?
• the first path that the router learned
...

• the last path that the router learned
...


CCNA Final Exam C

46
...
)
• It connects multiple IP networks
...

• It determines the best path to send packets
...

• It increases the size of the broadcast domain
...
Refer to the exhibit
...
3010
...

• The packet leaves interface Fa0/0 of R1 with the source MAC address as 000C
...
9260
...

• The Fa0/0 interface of R2 could be configured with the IP address 172
...
4
...


48
...
A network administrator has run the show interface command
...
What is the first step that is required to make this interface operational?
• Switch the cable with a known working cable
...

• Configure the interface as a loopback interface
...


49
...
R1 is configured properly for a single area OSPF, and R2 has been recently
installed in the network
...
168
...
0 0
...
0
...
1
...
0 0
...
0
...
168
...
0 0
...
0
...
1
...
0 0
...
0
...
168
...
0 0
...
0
...
1
...
0 0
...
0
...
168
...
0 0
...
0
...
0
...
0 0
...
0
...
Refer to the exhibit
...
0
...
0 0
...
0
...
What are the two
results of this command? (Choose two
...

• The traffic from the Internet will be directed to R2
...
16
...
0/22 will be blocked
...

• All the broadcasts will be forwarded via the S0/0/0 interface of R2
...
Which three statements are true regarding the encapsulation and de-encapsulation of packets when
traveling through a router? (Choose three
...

• The router changes the source IP to the IP of the exit interface
...

• The router changes the source physical address to the physical address of the exit interface
...

• The router sends the packet out all other interfaces, besides the one it entered the router on
...
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 exchange link state requests
...


53
...
Although both the routers can ping the serial interface of their neighbors, they are
unable to ping the Ethernet interfaces of other routers
...
)
• The administrative distance has been set to 50 on both routers
...
168
...
0
...
168
...
0
...
1
...
0 command has not been run on both routers
...


54
...
)
• Fast convergence of the network is critical
...

• The network administrator has limited knowledge to configure and troubleshoot routing protocols
...

• The capacity of the router is low
...
Refer to the exhibit
...

• The adjacencies between the routers are yet to be established
...
168
...
10 is configured at serial interface S0/0/1 of router R2
...
168
...
10 via the R2 S0/0/1
interface
...
Refer to the exhibit
...
What is the cause of the problem?
• An incorrect IP address is configured between the two routers
...

• A routing loop has occurred
...


57
...
What summarization should R2 use to advertise its LAN networks to R1?
• 172
...
0
...
16
...
0/22
• 172
...
4
...
16
...
0/24



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