[Free] Download New Latest (November) Cisco 400-201 Actual Tests 271-280

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QUESTION 271

R1#show ip cache flow.

 

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A network administrator issues the command “show ip cache flow” and finds the shown output. What can be concluded? (Choose two.)

 

A.

It is normal traffic.

B.

There is a potential sacrificed host located at network 192.1.6.0 generating attacks.

C.

There is a potential DOS attack on device of 194.10.6.2.

D.

It is multicast traffic source from 194.10.6.2

E.

It is multicast traffic destined for 194.10.6.2

 

Correct Answer: BC

 

 

QUESTION 272

As described in RFC 3270, short-pipe mode operation, the PE to CE egress polices are based upon:

 

A.

customer marking

B.

remarked IP tos value

C.

Qos groups/discard class

D.

innermost label exp value

E.

MDRR quantam

F.

topmost label exp value

 

Correct Answer: A

 

 

QUESTION 273

What is the definition of “jitter”?

 

A.

The total end-to-end delay

B.

The time it takes for the bits to transit the physical media.

C.

The delay caused by placing the bits on the wire.

D.

The variations of delay.

 

Correct Answer: D

 

 

QUESTION 274

Which descriptions of Netflow is correct? (Choose three.)

 

A.

By default,Netflow records bidirectional IP traffic flow.

B.

Netflow answers questions regarding IP traffiC. who, what, where, when, and how

C.

Netflow accounts for both transit traffic and traffic destined for the router.

D.

Netflow returns the subinterface information in the flow records.

 

Correct Answer: BCD

 

 

QUESTION 275

What is the typical marked DSCP value for a voice media packet in Voice over IP technology?

 

A.

AF41

B.

AF31

C.

AF21

D.

BE

E.

EF

 

Correct Answer: E

 

 

QUESTION 276

What protocol does an IP phone use to learn the voice VLAN ID it should use for voice traffic?

 

A.

VTP

B.

802.1q

C.

CDP

D.

Skinny Station Protocol

 

Correct Answer: C

 

 

QUESTION 277

What layer of the TMN (telecommunications management network) model does CTM fit into?

 

A.

Network management layer

B.

Element management layer

C.

Business management layer

D.

Network element layer

 

Correct Answer: B

 

 

QUESTION 278

Which ACL entry can be used to block Teredo tunnels?

 

A.

Teredo tunnels cannot be blocked

B.

deny udp any any 3544

C.

deny ipv6 udp any any 3544

D.

deny 41 any any

 

Correct Answer: B

 

 

QUESTION 279

Select the statement that best describes “The cure for Amplification Principle” in the Internet domain, as explained in RFC 3429 (Internet Architectural Guidelines)

 

A.

None of the above

B.

Amplification is prevented if local changes have only a local effect as opposed to system in which local change have a global effect

C.

Amplification is prevented if global changes have only a local effect as opposed to systems in which global changes have a local effect

D.

Internet domain does not suffer from “The Amplification Principle” as BGP takes care of misbehaving advertisers

 

Correct Answer: B

Explanation:

In the Internet domain, it has been shown that increased interconnectivity results in more complex and often slower BGP routing convergence [AHUJA]. A related result is that a small amount of inter-connectivity causes the output of a routing mesh to be significantly more complex than its input [GRIFFIN]. An important method for reducing amplification is ensure that local changes have only local effect (this is as opposed to systems in which local changes have global effect). Finally, ATM provides an excellent example of an amplification effect: if you lose one cell, you destroy the entire packet (and it gets worse, as in the absence of mechanisms such as Early Packet Discard [ROMANOV], you will continue to carry the already damaged packet).

 

 

QUESTION 280

What is TCI?

 

A.

Tag Calling Interface

B.

Tag Control Identifier

C.

ToS Class Interface

D.

Tag Control Information

 

Correct Answer: D

 

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