Free Download New Updated Cisco CCIE R&S 400-101 Real Exam Questions and Answers 81-90

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QUESTION 81

Refer to the exhibit. At which location will the benefit of this configuration be observed?

 

clip_image001

 

A.

on Router A and its upstream routers

B.

on Router A and its downstream routers

C.

on Router A only

D.

on Router A and all of its ARP neighbors

 

Correct Answer: B

 

 

QUESTION 82

Where is multicast traffic sent, when it is originated from a spoke site in a DMVPN phase 2 cloud?

 

A.

spoke-spoke

B.

nowhere, because multicast does not work over DMVPN

C.

spoke-spoke and spoke-hub

D.

spoke-hub

 

Correct Answer: D

 

 

QUESTION 83

Refer to the exhibit. A spoke site that is connected to Router-A cannot reach a spoke site that is connected to Router-B, but both spoke sites can reach the hub. What is the likely cause of this issue?

 

clip_image003

 

A.

There is a router doing PAT at site B.

B.

There is a router doing PAT at site A.

C.

NHRP is learning the IP address of the remote spoke site as a /32 address rather than a /24 address.

D.

There is a routing issue, as NHRP registration is working.

 

Correct Answer: B

 

 

QUESTION 84

Which mechanism can be used on Layer 2 switches so that only multicast packets with downstream receivers are sent on the multicast router-connected ports?

 

A.

IGMP snooping

B.

Router Guard

C.

PIM snooping

D.

multicast filtering

 

Correct Answer: C

 

 

QUESTION 85

What is the cause of ignores and overruns on an interface, when the overall traffic rate of the interface is low?

 

A.

a hardware failure of the interface

B.

a software bug

C.

a bad cable

D.

microbursts of traffic

 

Correct Answer: D

 

 

QUESTION 86

With which ISs will an ISIS Level 1 IS exchange routing information?

 

A.

Level 1 ISs

B.

Level 1 ISs in the same area

C.

Level 1 and Level 2 ISs

D.

Level 2 ISs

 

Correct Answer: B

 

 

QUESTION 87

Refer to the exhibit. Why is the neighbor relationship between R1 & R2 and R1 & R3 an L2-type neighborship?

 

clip_image005

 

A.

because the area ID on R1 is different as compared to the area ID of R2 and R3

B.

because the circuit type on those three routers is L1/L2

C.

because the network type between R1, R2, and R3 is point-to-point

D.

because the hello interval is not the same on those three routers

 

Correct Answer: A

 

 

QUESTION 88

Which three statements about the designated router election in IS-IS are true? (Choose three.)

 

A.

If the IS-IS DR fails, a new DR is elected.

B.

The IS-IS DR will preempt. If a new router with better priority is added, it just becomes active in the network.

C.

If there is a tie in DR priority, the router with a higher IP address wins.

D.

If there is a tie in DR priority, the router with a higher MAC address wins.

E.

If the DR fails, the BDR is promoted as the DR.

F.

The DR is optional in a point-to-point network.

 

Correct Answer: ABD

 

 

QUESTION 89

Which three elements compose a network entity title? (Choose three.)

 

A.

area ID

B.

domain ID

C.

system ID

D.

NSAP selector

E.

MAC address

F.

IP address

 

Correct Answer: ACD

 

 

 

QUESTION 90

Which statement about shaped round robin queuing is true?

 

A.

Queues with higher configured weights are serviced first.

B.

The device waits a period of time, set by the configured weight, before servicing the next queue.

C.

The device services a single queue completely before moving on to the next queue.

D.

Shaped mode is available on both the ingress and egress queues.

 

Correct Answer: A

 

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