Ensurepass

QUESTION 431

In optical transmission systems, chirped lasers are used for the purpose of:

 

A.

Turning the laser to a specific ITU channel

B.

Keeping the signal wavelength “locked” to a specific technology

C.

Suppressing FWM and SBS non-linear effects

D.

None ofthe above

 

Correct Answer: D

 

 

QUESTION 432

Which ITU publication defines the r
equirements for communicating data over an optical network?

 

A.

G.706

B.

G.707

C.

G.708

D.

G.709

Correct Answer: D

 

 

QUESTION 433

How many bits are expressed by “::” in the address 2001:DB8::9C0:876A:0:130B?

 

A.

32 bits

B.

28 bits

C.

44 bits

D.

64 bits

E.

0 bits

 

Correct Answer: A

 

 

QUESTION 434

MPLS label headers for packet media consist of:

 

A.

Version

B.

Label

C.

COS/EXP

D.

TTL

E.

S flag

 

Correct Answer: BCDE

 

 

QUESTION 435

Refer to the exhibit. Router A is configured with a BGP keepalive timer of 20 seconds and a BGP holddown timer interval of 60 seconds. The BGP peer router B is configured with 5 seconds of keepalive interval and 15 seconds of holddown timer interval. Which option is the value of the keepalive interval and holddown timers, respectively, after the successful BGP TCP negotiation between router A and router B?

 

clip_image002

 

A.

BGP TCP negotiation will not be successful.

B.

20 and 60 seconds

C.

5 and 15 seconds

D.

Router A will use 20 and 60 seconds and router B will use 5 and 15 seconds.

E.

Router B will use 20 and 60 seconds and router A will use 5 and 15 seconds.

 

Correct Answer: C

 

 

QUESTION 436

Refer to the exhibit. AS 100 for ABC sites is used to carry XYZ customer traffic over ISP network. All routing between CEs to PEs are BGP-based. XYZ site 1 reports that it cannot reach XYZ site 2, although the destination network is installed in its routing table. Which statement describes the cause of the problem?

 

clip_image004

 

A.

LDP is not running between XYZ-CE1 and ABC_PE1.

B.

LDP is not running between ABC_PE1 and PE1.

C.

ABC_PE1 does not have an inbound label for subnet 6.6.6.6/32.

D.

send-label command is missing from PE1 to ABC-PE1.

 

Correct Answer: D

 

 

QUESTION 437

GMPLS is based upon Non-Packet-based devices

 

A.

True

B.

False

 

Correct Answer: A

 

 

QUESTION 438

An engineer is configuring a Cisco CRS-1 Multishelf System. Which option describes the minimum LCC and FCC requirements for proper functionality?

 

A.

two LCCs and one FCC

B.

one LCC and one FCC

C.

two LCCs and two FCCs

D.

one LCC and two FCCs

 

Correct Answer: B

 

 

QUESTION 439

Which three BGP features improve convergence? (Choose three.)

 

A.

route reflector

B.

BGP cost community

C.

BGP autodiscovery

D.

BGP soft reconfiguration

E.

Fast Peering Session Deactivation

F.

eBGP multihop

G.

BGP PIC

H.

next-hop address tracking

 

Correct Answer: EGH

 

 

 

 

 

 

 

 

 

 

 

QUESTION 440

Refer to the exhibit. A company is deploying IPv6 using a dual-stack approach. OSPFv2 is used for IPv4 routing and is redistributed into the BGP IPv4 address family. The network engineer also needs to enable OSPFv3 for IPv6 routing using the same design that is used for OSPFv2. All prefixes in the OSPFv3 database must be redistributed into the BGP IPv6 address family at router R2, but R3 does not receive the loopback 0 IPv6 address of R2 via BGP. Which action will fix this problem?

 

clip_image005

 

A.

redistribution of BGP routes into OSPFv3

B.

redistribution of OSPFv3 routes into BGP with include-connected

C.

mutual redistribution of OSPFv3 and BGP routes

D.

redistribution of connected OSPFv3 routes

 

Correct Answer: B

 

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