[Free] 2017(Apr) Ensurepass Examcollection Cisco 400-201 Latest Dumps 191-200

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CCIE Service Provider Written Exam v4.1

QUESTION 191

In a multi-VRF scenario using OSPF as PE-CE routing protocol, which Cisco IOS command allows the CE to accepts routes from PE inside of each VRF?

 

A.

router ospf <process id> vrf<vrf name> capability vrf-lite

B.

router ospf<process id> vrf<vrf name>domain-id <value>

C.

router ospf <process id> domain-id <value>

D.

router ospf <process id> capability vrf-lite

 

Correct Answer: A

 

QUESTION 192

The mechanisms for distributing LDP are:

 

A.

CEF and the FIB table

B.

UDPandIP

C.

AandB

D.

RSVPandCEF

E.

LDP and RSVP

 

Correct Answer: E

 

 

QUESTION 193

Which three modes are the operating of HDLC? (Choose three)

 

A.

asynchronous balanced mode (ABM)

B.

normal response mode (NRM)

C.

normal peer mode (NPM)

D.

asynchronous client mode (ACM)

E.

asynchronous response mode (ARM)

 

Correct Answer: ABE

Explanation:

Asynchronous response mode is an HDLC addition[1] for use overfull-duplex links. While retaining the primary/secondary distinction, it allows the secondary to transmit at any time. Asynchronous balanced mode added the concept of a combined terminal which can act as both a primary and a secondary. There are some subtleties about this mode of operation; while many features of the protocol do not care whether they are in a command or response frame, some do, and the address field of a received frame must be examined to determine whether it contains a command (the address received is ours) or a response (the address received is that of the other terminal).

 

 

QUESTION 194

What is the action of “pop” in the context of MPLS switching?

 

A.

It replaces the top label in the MPLS label stack with a set of labels.

B.

It replaces the top label in the MPLS label stack with another value.

C.

It adds a top label in MPLS label stack.

D.

It removes the top label in the MPLS label stack.

 

Correct Answer: D

 

 

QUESTION 195

What best explains the BGP route-reflector function?

 

A.

None of the above.

B.

BGP route-reflector does not have to be in the forwarding path of data coming from its clients.

C.

BGP route-reflector will stop reflecting the routes if they’re not directly-connected clients.

D.

BGP route-reflector should be in forwarding path of data coming from its clients.

 

Correct Answer: B

QUESTION 196

What is the port number of an IPsec Encapsulating Security Payload packet?

 

A.

IP protocol 50

B.

Ip Protocol 51

C.

TCP Port 50

D.

TCP port 51

E.

UDP Port 50

F.

UDP port 51

 

Correct Answer: A

 

 

QUESTION 197

Which description is true of that the fast-reroute keep all paths command accomplishes when used under OSPF process?

 

A.

All possible alternate routes are installed in the OSPF RIB, even if the alternate paths do not meet the LFA criteria (the LFA inequalities)

B.

By default, only the /32 routes have a backup path installed. This command creates a backup path for the router with any subnet mask.

C.

Besides the regular LFA backup paths, this command also installs the remote LFA backup paths.

D.

All backup routes – not only the best backup route are installed in the OSPF RIB.

 

Correct Answer: D

Explanation:

http://www.cisco.com/c/en/us/td/docs/ios- xml/ios/iproute_ospf/configuration/xe-3s/iro-lfa-frr-xe.pdf

Candidate Repair-Path Lists When OSPF computes a repair path, it keeps in the local RIB only the best from among all the candidate paths, in order to conserve memory. You can use the fast-reroute keep-all-paths command to create a list of all the candidate repair paths that were considered. This information can be useful for troubleshooting but it can greatly increase memory consumption so it should be reserved for testing and debugging.

 

 

QUESTION 198

A network administrator wants to implement an IP dampening feature for a network. Which parameter identifies how fast the accumulated penalty can decay exponentially?

 

A.

reuse threshold

B.

suppress threshold

C.

half-life period

D.

maximum sup
press time

 

Correct Answer: C

Explanation:

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_pi/configuration/15-sy/iri-15-sy-book/iri-ip-event-damp.html

QUESTION 199

Refer to the exhibit. Which MPLS TE component keeps track of the flooding and admission control?

 

clip_image002

 

A.

MPLS TE priorities

B.

RSVP

C.

link attributes

D.

link manager

 

Correct Answer: D

Explanation:

http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/TE_1208S.html#wp55899

http://www.cisco.com/c/en/us/td/docs/ios/12_0s/feature/guide/fs23te.html

MPLS traffic engineering link management module. This module operates at each LSP hop, does link call admission on the RSVP signaling messages, and bookkeeping of topology and resource information to be flooded.

 

 

QUESTION 200

Refer to the exhibit. Customer ABC is peering with two service providers for Internet Access In order to prevent the AS100 from becoming a transit AS between ISP_1 and ISP_2 Which BGP configuration must be applied to achieve this goal?

 

clip_image004

 

A.

CE1#

ip as-path access-list 1 permit ^$

route-map LOCAL_ONLY permit 10

match as-path 1

router bgp 100

neighbor 1.1.2.2

route-map LOCAL_ONLY in

CE2#

ip as-path access-list 1 permit ^$

route-map LOCAL_ONLY permit 10

match as-path 1

router bgp 100neighbor 1.1.1.2

route-map LOCAL-ONLY in

B.

CE1#

ip as-path access-list 1 permit ^11$

route-map LOCAL_ONLY permit 10

match as-path 1

router bgp 100

neighbor 1.1.1.2

route-map LOCAL_ONLY out

CE2#

ip as-path acctss-list 1 permit ^22$

router-map LOCAL.ONLY

permit 10 match as-path 1

router bgp 100

neighbor 1.1.1.2

routt-map LOCAL_ON
LY out

C.

CE1#

ip as-path access-list 1 permit ^$

route-map LOCAL_ONLY permit 10

match as-path 1 router bgp 100

neighbor 1.1.2.2

route-map LOCAL_ONLY out

CE2#

ip as-path access-list 1 permit ^$

route-map LOCAL_ONLY permit 10

match as-path 1

router bgp 100

neighbor 1.1.1.2

route-map LOCAL_ONLY out

D.

CE1#

ip as-path access-list 1 permit ^100$

route-map LOCAL_ONLY permit 10

match as-path 1 router bgp 100

neighbor 1.1.2.2

route-map LOCAL_ONLY out

CE2#

ip as-path access-list 1 permit ^100S

route-map LOCAL_ONLY permit 10

match as-path 1

router bgp 100

neighbor 1.1.1.2

route-map LOCALJDNLY out

 

Correct Answer: C

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