[Free] 2017(Apr) Ensurepass Examcollection Cisco 400-201 Latest Dumps 231-240

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CCIE Service Provider Written Exam v4.1

QUESTION 231

Which three statements about MPLS traffic engineering (MPLS TE) are true? (Choose three)

 

A.

MPLS TE supports admission control

B.

MPLS TE tunnel traffic is a link attribute to compute the TE tunnel path

C.

MPLS TE uses BGP extension to advertise link attributes

D.

MPLS TE provides protection capability

E.

MPLS TE uses RSVP to establish LSP

 

Correct Answer: ADE

 

 

QUESTION 232

Which feature allows an MPLS TE Tunnel to be used by an IGP at the headend of the tunnel?

 

A.

MPLS TE link management

B.

MPLS TE autoroute announce

C.

generalized MPLS

D.

MPLS TE Forwarding Adjacency

E.

Differentiated Service TE

 

Correct Answer: B

 

 

QUESTION 233

An IS-IS enabled router with multiple IS-IS neighbors is required to have BFD sessions with all neighbors. Which BFD mode should you use when you want to save the overhead of periodic protocol control packets?

 

A.

echo

B.

asynchronous

C.

demand

D.

active

 

Correct Answer: C

Explanation:

https://tools.ietf.org/html/rfc5880#section-3.1 RFC – 5880

 

 

QUESTION 234

Which statement about MPLS Traffic Engineering policy-based tunnel selection (PBTS) is not true?

 

A.

The tunnel that is not configured with the policy-class command acts as the default.

B.

EXP selection is between multiple tunnels to the same destination

C.

There is no requirement for IGP extensions

D.

Tunnels are configured using the policy-class command and carry multiple EXP values.

E.

It supports VRF traffic, IP-to-MPLS switching, and MPLS-to-MPLS switching

 

Correct Answer: D

 

 

QUESTION 235

Which three of these are optical channel data unit (ODU) overhead fields? (Choose three)

 

A.

general communication channel 0 (GCCO)

B.

section monitoring

C.

reserved (RES)

D.

general communication channels 1 and 2 (GCC1 GCC2)

E.

tandem connection monitoring activation deactivation (TCM ACT)

 

Correct Answer: CDE

 

 

 

QUESTION 236

What is the role of Forwarding Equivalence Class (FEC) in MPLS?

 

A.

FEC determines how to establish an LSP path.

B.

FEC determines how IP packets are forwarded in MPLS LSP.

C.

FEC determines how MPLS labels are stacked in LSP.

D.

FEC determines how a group of IP packets are mapped to an LSP.

 

Correct Answer: D

 

 

QUESTION 237

Two routers that are running MPLS and LDP have multiple links that connect then to each other. An engineer wants to ensure that the label bindings are not flushed from the LIB if one of the links fails. Which configuration meets this requirement?

 

A.

The mpls ip command on an MPLS TE tunnel.

B.

The mpls idp sync command under router process configuration mode.

C.

The mpls Idp autoconfig command.

D.

T
he mpls Idp discovery targeted-hello accept command

 

Correct Answer: A

Explanation:

http://www.cisco.com/c/en/us/td/docs/ios/12_4t/12_4t2/ftldp41.html#wp1713451

 

 

QUESTION 238

Which technology provides fast forwarding path failure detection times for all media type?

 

A.

IP Dampening

B.

UDLD

C.

BFD

D.

NSF

E.

MPLSTE

 

Correct Answer: C

 

 

QUESTION 239

Which controller uses policy-based application profile?

 

A.

cisco open SDN controller

B.

openflow control

C.

cisco ucs director

D.

openstack

E.

cisco APIC

 

Correct Answer: EQUESTION 240

Which two statements regarding the IS-IS DIS election process are true? (Choose two.)

 

A.

L1 routers on a broadcast network only establish adjacencies with the DIS.

B.

If the DIS becomes unavailable the backup DIS is promoted to DIS.

C.

Adding a router with a higher priority than the current DIS will result in the new router becoming DIS.

D.

Separate L1 and L2 election processes are held on a brodcast network.

E.

A priority of 0 will prevent a router from becoming a DIS.

F.

If there is a tie based on priority, the router whose attached interface has the lowest MAC address becomes the DIS.

 

Correct Answer: CD

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