Latest Cisco CCIE 400-101 Real Exam Download 111-120

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QUESTION 111

Which statement about the function of poison reverse in EIGRP is true?

 

A.

It tells peers to remove paths that previously might have pointed to this router.

B.

It tells peers to remove paths to save memory and bandwidth.

C.

It provides reverse path information for multicast routing.

D.

It tells peers that a prefix is no longer reachable.

 

Answer: A

 

 

QUESTION 112

What is the preferred method to improve neighbor loss detection in EIGRP?

 

A.

EIGRP natively detects neighbor down immediately, and no additional feature or configuration is required.

B.

BFD should be used on interfaces that support it for rapid neighbor loss detection.

C.

Fast hellos (subsecond) are preferred for EIGRP, so that it learns rapidly through its own mechanisms.

D.

Fast hellos (one-second hellos) are preferred for EIGRP, so that it learns rapidly through its own mechanisms.

 

Answer: B

 

 

QUESTION 113

How does EIGRP derive the metric for manual summary routes?

 

A.

It uses the best composite metric of any component route in the topology table.

B.

It uses the worst composite metric of any component route in the topology table.

C.

It uses the best metric vectors of all component routes in the topology table.

D.

It uses the worst metric vectors of all component routes in the topology table.

 

Answer: A

 

 

QUESTION 114

Refer to the exhibit. Which part of the joined group addresses list indicates that the interface has joined the EIGRP multicast group address?

clip_image002

A.

FF02::1

B.

FF02::1:FF00:200

C.

FF02::A

D.

FF02::2

 

Answer: C

 

 

QUESTION 115

Refer to the exhibit. Which two corrective actions could you take if EIGRP routes from R2 fail to reach R1? (Choose two.)

 

clip_image003

 

A.

Configure R2 to use a VRF to send routes to R1.

B.

Configure the autonomous system in the EIGRP configuration of R1.

C.

Correct the network statement on R2.

D.

Add the interface on R1 that is connected to R2 into a VRF.

 

Answer: BD

 

 

QUESTION 116

EIGRP allows configuration of multiple MD5 keys for packet authentication to support easy rollover from an old key to a new key. Which two statements are true regarding the usage of multiple authentication keys? (Choose two.)

 

A.

Received packets are authenticated by the key with the smallest key ID.

B.

Sent packets are authenticated by all valid keys, which means that each packet is replicated as many

times as the number of existing valid keys.

C.

Received packets are authenticated by any valid key that is chosen.

D.

Sent packets are authenticated by the key with the smallest key ID.

 

Answer: CD

 

 

QUESTION 117

Refer to the exhibit. Which additional configuration is necessary for R1 and R2 to become OSPF neighbors?

 

clip_image004

 

A.

R1

!

router ospf 1

no passive-interface Fastethernet0/0

!

B.

R2

!

router ospf 10

no network 10.1.1.6 0.0.0.0 area 0

network 10.1.1.6 0.0.0.0 area 1

!

C.

R1

!

interface FastEthernet0/0

ip ospf mtu-ignore

!

R2

!

interface FastEthernet0/1

ip ospf mtu-ignore

!

D.

R1

!

no router ospf 1

router ospf 10

network 10.1.1.5 0.0.0.0 area 0

 

Answer: A

 

 

QUESTION 118

Consider an OSPFv3 network with four parallel links between each pair of routers. Which measure can you use to reduce the CPU load and at the same time keep all links available for ECMP?

 

A.

Configure some interfaces as passive interface.

B.

Configure ipv6 ospf priority 0 on some interfaces.

C.

Configure some routers with a distribute list in ingress of the OSPFv3 process.

D.

Configure ipv6 ospf database-filter all out on some interfaces.

 

Answer: D

 

 

QUESTION 119

Refer to the exhibit. Which two statements about the device that generated the output are true? (Choose two.)

 

clip_image005

 

A.

The SPT-bit is set.

B.

The sparse-mode flag is set.

C.

The RP-bit is set.

D.

The source-specific host report was received.

 

Answer: AD

 

 

QUESTION 120

A service provider is deploying L2VPN LAN services in its MPLS cloud. Which statement is true regarding LDP signaling and autodiscovery?

 

A.

LDP signaling requires that each PE is identified, and that an LDP session is active with its P neighbor

for autodiscovery to take place.

B.

LDP signaling requires that each P is identified, and that a targeted LDP session is active for auto

discovery to take place.

C.

LDP signaling requires that each PE is identified, and that a targeted LDP session with a BGP route

reflector is active for autodiscovery to take place.

D.

LDP signaling requires that each PE is identified, and that a targeted LDP session is active for auto

discovery to take place.

 

Answer: D

 

 

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