Free Download New Updated Cisco CCIE R&S 400-101 Real Exam Questions and Answers 211-220

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QUESTION 211

Which two features are supported when Cisco HDLC is implemented? (Choose two.)

 

A.

error recovery

B.

error detection

C.

asynchronous links

D.

multiple protocols

 

Correct Answer: BD

 

 

QUESTION 212

Refer to the exhibit. With these configurations for R1 and R2, which statement about PPP authentication is true?

 

clip_image001

 

A.

Authentication fails because R1 is missing a username and password.

B.

R2 responds with the correct authentication credentials.

C.

R2 requires authentication from R1.

D.

R1 requires authentication from R2.

 

Correct Answer: C

 

 

QUESTION 213

When BGP route reflectors are used, which attribute ensures that a routing loop is not created?

 

A.

weight

B.

local preference

C.

multiexit discriminator

D.

originator ID

 

Correct Answer: D

 

 

 

 

 

 

 

 

QUESTION 214

Refer to the exhibit. You must complete the configuration on R1 so that a maximum of three links can be used and fragmentation is supported. Which additional configuration accomplishes this task?

 

clip_image002

 

A.

interface Multilink19

ip address 192.168.1.1 255.255.255.0

ppp multilink

ppp multilink group 19

ppp multilink links minimum 1

ppp multilink links maximum 3

ppp multilink interleave

B.

interface Multilink19

ip address 192.168.1.1 255.255.255.0

ppp multilink

ppp multilink group 19

ppp multilink links maximum 3

ppp multilink fragment delay 20

C.

interface Multilink19

ip address 192.168.1.1 255.255.255.0

ppp multilink

ppp multilink group 19

ppp multilink links maximum 3

ppp multilink fragment delay 20

ppp multilink interleave

D.

interface Multilink19

ip address 192.168.1.1 255.255.255.252

ppp multilink

ppp multilink group 19

ppp multilink links maximum 3

ppp multilink interleave

 

Correct Answer: A

 

 

QUESTION 215

Refer to the exhibit. Which statement is true about the downward bit?

 

clip_image003

 

A.

It forces the CE router to use a backup link instead of sending traffic via MPLS VPN.

B.

It informs the PE router that the LSA metric has been recently decreased to 1 and that partial SPF calculation cannot be delayed.

C.

It forces the CE router to install the LSA with the downward bit set into its routing table as a discard route.

D.

It informs the PE router that the LSA was already redistributed into BGP by another PE router and that the LSA must not be redistributed into BGP again.

 

Correct Answer: D

 

 

QUESTION 216

Which regular expression will match prefixes that originated from AS200?

 

A.

^$

B.

^200_

C.

_200$

D.

^200)

E.

_200_

 

Correct Answer: C

 

 

QUESTION 217

Which statement describes the difference between a stub area and a totally stub area?

 

A.

The ABR advertises a default route to a totally stub area and not to a stub area.

B.

Stub areas do not allow LSA types 4 and 5, while totally stub areas do not allow LSA types 3, 4, and 5.

C.

Totally stub areas allow limited external routes in the area via a special type 7 LSA, while stub areas do not

D.

Stub areas do not allow external LSAs, ASBR summary LSAs, or summary LSAs with the exception of a default route originated by the ABR via a summary LSA.

 

Correct Answer: B

 

 

QUESTION 218

Which two statements are true about IS-IS? (Choose two.)

 

A.

IS-IS DIS election is nondeterministic.

B.

IS-IS SPF calculation is performed in three phases.

C.

IS-IS works over the data link layer, which does not provide for fragmentation and reassembly.

D.

IS-IS can never be routed beyond the immediate next hop.

 

Correct Answer: CD

 

 

QUESTION 219

Which command do you use to connect a dense-mode domain to a sparse-mode multicast domain?

 

A.

none, because there is no such command

B.

ip pim spt-threshold infinity

C.

ip pim register dense-mode

D.

ip pim dense-mode proxy-register

 

Correct Answer: D

 

 

QUESTION 220

Which two statements about the function of a PIM designated router are true? (Choose two.)

 

A.

It forwards multicast traffic from the source into the PIM network.

B.

It registers directly connected sources to the PIM rendezvous point.

C.

It sends PIM Join/Prune messages for directly connected receivers.

D.

It sends IGMP queries.

E.

It sends PIM asserts on the interfaces of the outgoing interface list.

 

Correct Answer: BC

 

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