QUESTION 1
On the OSPF network shown in the figure, areas 1, 2, and 3 are common areas. The IP address of Loopback0 on R5 is 10.0.5.5/32, and OSPF is enabled on the interface using the network command. If the ospf filter-lsa-out all command is run on GE0/0/1 of R5 and GE0/0/2 of R1, which of the following routers do not have the route 10.0.5.5/32 in their routing tables?

A. R6
B. R4
C. R1
D. R2

Correct Answer: ABCD
QUESTION 2
BFD for OSPF refers to the association of BFD with OSPF to speed up OSPF’s response to network topology changes. The OSPF neighbor relationship can enter the Full state only after the BFD session goes up. The OSPF neighbor relationship can go down only after the BFD session goes down.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 3
On the OSPF network shown in the figure, the cost values of links are marked. OSPF IP FRR is enabled on R1. The primary path from R1 to 10.0.3.3/32 is R1->R2->R3, and the backup path is R1->R4->R2->R3.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 4
On the IS-IS network shown in the figure, R1 imports the default route using the default-route-advertise always level-1 command, and R2 imports the default route using the default- route-advertise always level-2 command. Which of the following routers have the default route in their routing tables?

A. R4
B. R2
C. R1
D. R3

Correct Answer: ABD
QUESTION 5
On the OSPF network shown in the figure, area 1 is a stub area, area 2 is a totally stub area, and area 3 is an NSSA. Which of the following LSAs does not exist in areas 1, 2, and 3?

A. Type 4
B. Type 1
C. Type 3
D. Type 2

Correct Answer: A
QUESTION 6
On the OSPF network shown in the figure, the cost in values of links are marked. OSPF IP FRR is enabled on R1. The primary path from R1 to 10.0.3.3/32 is R1 ->R2->R3, and the backup path is R1->R4->R2->R3.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 7
On the OSPF network shown in the figure, area 1 is an NSSA, area 2 is a common area, and R4 imports an external route 10.0.4.4/32. The router ID of each router is 10.0.x.x, where x is the number of the router. If the asbr-summary 10.0.4.0 255.255.255.0 command is run in the OSPF processes of R1 and R3, which of the following routers have the route 10.0.4.0/24 in their routing tables?

A. R2
B. R1
C. R5
D. R3

Correct Answer: ABCD
QUESTION 8
On the OSPF network shown in the figure, area is a stub area, area 2 is a totally stub area, and area 3 is an NSSA. Which of the following routers are unable to import external routes?

A. R4
B. R6
C. R3
D. R5

Correct Answer: ABC
QUESTION 9
On a stable network that requires fast route convergence, you can change the value of the interval at which OSPF LSAs are received to 0 so that topology or route changes can be detected immediately, which speeds up route convergence.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 10

On the IS-IS network shown in the figure, R1 imports a default route using the default-route-advertise always level-1 command. Which of the following statements are true?

A. The default route does not exist in the routing table of R1.
B. The default route exists in the routing table of R2.
C. The default route exists in the routing table of R3.
D. Although the default-route-advertise always level-1 command is configured on R1, R1 cannot import the default route.

Correct Answer: AB
QUESTION 11
To protect a device against the attacks of forged BGP messages, you can configure GTSM to check whether the TTL value in the IP message header is within the specified range. If the peer x.x.x.x valid-ttl-hops 100 command is configured on a device, the valid TTL value range of the detected message is [155, 255].

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 12
To reduce the possibility of attacks on BGP, use keychain authentication between BGP peers. The keychain algorithm generates a set of passwords. Keychain authentication allows password to be automatically changed based on the configuration. Therefore, keychain authentication applies to networks requiring high security.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 13
The first word in the output of the display version | begin uptime command run on a router is uptime.

A. TRUE
B. FALSE

Correct Answer: A
QUESTION 14
On the network shown in the figure, IS-IS runs on R1, R2, R4, and R5, and the area ID is 49.0001. IS-IS runs on R3 and R6, and the area ID is 49.0002. The import-route isis level-2 into level-1 command is configured on R2. In AS 65000, R1, R3, R4, and R6 each establish IBGP peer relationships with R2 and R5. R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. An IBGP peer relationship is established between R2 and R5, and the same cluster ID is configured. The IBGP peer relationships are established using Loopback0. The IP address of Loopback0 on each router is 10.0.x.X/32, and the router ID is 10.0.X.X, where X is the number of the router. R1 and R4 import the external route 192.168.1.0/24 to BGP through the import-route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command. Which of the following statements are true?

A. The BGP routing table of R5 contains two valid routes to 192.168.1.0/24.
B. The BGP routing table of R2 contains three valid routes to 192.168.1.0/24.
C. The BGP routing table of R3 contains one valid route to 192.168.2.0/24.
D. The BGP routing table of R4 contains three valid routes to 192.168.2.0/24.

Correct Answer: AC
QUESTION 15
An advanced ACL defines rules based on information such as the source IP address, destination IP address, IP protocol type, TCP source/destination port number, and UDP source/destination port number. You can use a routing policy to invoke an advanced ACL to implement BGP route control.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 16
On the network shown in the figure, IS-IS runs on R1, R2, R4, and R5, and the area ID is 49.0001. IS-IS runs on R3 and R6, and the area ID is 49.0002. In AS 65000, R1, R3, R4, and R6 each establish IBGP peer relationships with R2 and R5. R2 and R5 are RRs, and R1, R4, R3, and R6 are clients. The IBGP peer relationships are established using Loopback0. The IP address of Loopback0 on each router is 10.0.X.X/32, and the router ID is 10.0.X.X where X is the number of the router. R1 and R4 import the external route 192.168.1.0/24 to BGP through the import-route command, and R3 and R6 import the external route 192.168.2.0/24 to BGP through the import-route command. Which of the following statements are true?

A. The path for traffic from R3 to 192.168.1.0/24 may be R3 -> R2 -> R1.
B. The path for traffic from R3 to 192.168.1.0/24 may be R3 -> R5 -> R4.
C. The path for traffic from R1 to 192.168.2.0/24 may be R1 -> R2 -> R3.
D. The path for traffic from R1 to 192.168.2.0/24 may be R1 -> R5 -> R3.

Correct Answer: ABCD
QUESTION 17
When creating an IPv6 static route with a broadcast interface as the outbound interface, you need to specify a next hop. For point-to-point interface, you must specify an outbound interface.

A. TRUE
B. FALSE

Correct Answer: B
QUESTION 18
On the OSPFV3 network shown in the figure, OSPFv3 parameters use default values. The LSDB is checked on one of the devices. The router IDs of R1, R3, and R4 are 10.0.1.1, 10.0.3.3, and 10.0.4.4, respectively. The Origin Router part of some LSAs is hidden. Complete this part. (Tokens can be reused.)

Select and Place:

Correct Answer:

 

QUESTION 19
On the OSPFV3 network shown in the figure, the LSDB of R1 contains                     Link-LSAs. (Enter only digits.)

Correct Answer: 2

QUESTION 20
On the OSPFV3 network shown in the figure, area 1 is a stub area, area 2 is a common area, and area 3 is an NSSA. The IPv6 address of Loopback0 on R6 is 2000::6/128. The router ID of each router is 10.0.X.X, where X is the number is of the router. Which of the following statements is false?

A. The LSDB of R6 contains the Inter-Area-Prefix-LSA that is generated by R3 and describes 2000::6/128.
B. The LSDB of R5 contains the Inter-Area-Prefix-LSA that is generated by R1 and describes 2000::6/128.
C. The LSDB of R1 contains the Inter-Area-Prefix-LSA that is generated by R2 and describes 2000::6/128.
D. The LSDB of R4 contains the Inter-Area-Prefix-LSA that is generated by R2 and describes 2000::6/128.

Correct Answer: A