Download New Latest (May) Cisco 640-875 Actual Tests 51-60

By | May 16, 2015

Ensurepass

 

QUESTION 51

Which two statements are correct regarding routing protocol authentication? (Choose two.)

 

A.

MD5 authentication can only be established between Internal BGP peers.

B.

Authentication can be established using keychains on one peer and MD5 hashing on the other.

C.

UDP port 179 is used for BGP session authentication.

D.

MD5 passwords are never sent to a peer.

E.

Routers authenticate each routing update packet received.

F.

BGP peers can be configured with different passwords.

 

Answer: DE

 

 

QUESTION 52

DRAG DROP

 

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Answer:

clip_image002

 

A.

 

B.

 

C.

 

D.

 

 

Answer:

 

 

QUESTION 53

What is the SDH equivalent of the SONET STS-12 framing format?

 

A.

SDH STM-1

B.

SDH STM-4

C.

SDH STM-12

D.

SDH STM-16

E.

SDH STM-64

 

Answer: B

 

 

QUESTION 54

Which three statements correctly describe DSL-based Internet services for residential users? (Choose three.)

 

A.

Most residential deployments use PPPoE encapsulation where the end user PC or the DSL CPE will require a PPP username and password configuration.

B.

Most residential deployments use PPPoA encapsulation where the DSL CPE device needs to provide Layer 3 routing functions.

C.

The most commonly installed DSL variant for residential deployments is ADSL.

D.

The most commonly installed DSL variant for residential deployments is SDSL.

E.

The most commonly installed DSL variant for residential deployments is HDSL.

F.

At the DSL service provider location, a DSLAM typically is used to terminate all the PPP connections of the DSL subscribers.

G.

At the DSL service provider location, a DSLAM is used to terminate and then aggregate the DSL connections over an ATM network.

 

Answer: ACG

 

 

QUESTION 55

Refer to the exhibit.

 

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Which two options are the number of broadcast domains and collision domains shown in the exhibit? (Choose two.)

 

A.

1 collision domain

B.

2 collision domains

C.

4 collision domains

D.

7 collision domains

E.

1 broadcast domain

F.

2 broadcast domains

G.

4 broadcast domains

H.

7 broadcast domains

 

Answer: DF

 

 

QUESTION 56

Which SNMPv2/SNMPv3 operation is not supported in Cisco IOS XR software?

 

A.

get-bulk

B.

get-request

C.

inform

D.

trap

E.

set-request

 

Answer: C

 

 

QUESTION 57

Using VLSM, how many /30 subnets can be derived from a single /27 Class C subnet?

 

A.

1

B.

2

C.

4

D.

8

E.

12

F.

16

 

Answer: D

 

 

QUESTION 58

Which type of IPv6 address does the ff00::/8 prefix denote?

 

A.

local loopback

B.

global unicast

C.

unique link local

D.

link local unicast

E.

multicast

F.

anycast

 

Answer: E

 

 

QUESTION 59

Which two statements about classful or classless routing protocol operations are true? (Choose two.)

 

A.

Classful routing protocols do not send subnet mask information with their

B.

routing updates.

Variable-length subnet masks are supported when using classful routing protocols.

C.

Examples of classless routing protocols include RIPv1, EIGRP, OSPF, and

D.

IS-IS.

Classful routing protocols do not support discontiguous subnets.

 

Answer: AD

 

 

QUESTION 60

What is the result of using the Cisco IOS copy tftp: run command?

 

A.

The running configuration on the Cisco IOS device is backed up to the TFTP server.

B.

Only new configuration parameters from the saved configuration file on the TFTP server are added to the running configuration. No changes to any existing configuration parameters in the running configuration are made.

C.

The running configuration on the Cisco IOS device is replaced with the saved configuration file on the TFTP server.

D.

The configuration stored in the TFTP server is merged with the running configuration on the Cisco IOS device.

E.

The saved configuration file from the TFTP server is copied to the target configuration.

 

Answer: D