Download New Updated (Spring 2015) Cisco 350-029 Actual Tests 281-290

By | April 26, 2015

Ensurepass

 

QUESTION 281

What are the differences between LLQ and CBWFQ? (Choose two.)

 

A.

LLQ priority queuebandwidth is policed with a congestion aware policer.

B.

With LLQ, bandwidth allocations for the priority queue and all the CBWFQ queues are configured using the priority command.

C.

LLQ does not support WFQ on the default traffic class (class-default).

D.

LLQ supports the addition of strict priority queuing.

E.

LLQ is configured using MQC and CBWFQ is configured using the fair-queue command.

 

Correct Answer: AD

 

 

QUESTION 282

What is used to provide read access to QoS configuration and statistics informationon Cisco platforms that support Modular QoS CLI (MQC)?

 

A.

Cisco SDM QoS Wizard

B.

Cisco AutoQoS

C.

CDP

D.

Cisco Class-Based QoS MIB.

E.

Cisco NBAR Discovery

 

Correct Answer: D

 

 

QUESTION 283

As described in RFC 3270, short-pipe mode operation, the PE to CEegress 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 284

Select the statement that best describes “The curefor 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 havea 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 outputof 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 damagedpacket).

 

 

QUESTION 285

A network administrator wants to detect a login attack against a router. What IOS command can make the attack recorded in syslog server?

 

A.

Login detect login-failure log

B.

none of the above

C.

Logging detect fail-login

D.

Login on-failure log

E.

Logging login on-failure

 

Correct Answer: D

 

 

QUESTION 286

Which of the following IOS commands cause syslog messages to be stamped with time and dates?

 

A.

logging datetime on

B.

service timestamps log datetime

C.

service logging datetime

D.

logging timestamps on

E.

logging trap datetime

 

Correct Answer: B

Explanation:

Service timestamps

To configure the system to apply a time stamp to debugging messages or system logging messages, use the service timestamps command in global configuration mode. To disable this service, use the no form of this command.

Service timestamps [debug | log] [uptime | datetime [msec]] [localtime] [show-timezone] [year] no service timestamps [debug | log]

 

 

QUESTION 287

Which of the following statements regarding Selective PacketDiscard (SPD) is correct?

 

A.

Selective Packet Discard (SPD) is
a mechanism to drop non-routing packets instead of routing packets when the process level queue is congested.

B.

Selective Packet Discard (SPD) is a mechanism to drop normal IP packets insteadof VOIP packets when the link is overloaded.

C.

None of above.

D.

Selective Packet Discard (SPD) is a mechanism to drop Frame Relay frames with the DE bit set instead of Frame Relay frames DE bits without being set when the link is overloaded.

E.

SelectivePacket Discard (SPD) is a mechanism to drop packets with low IP precedence instead of packets with high IP precedence when the link is overloaded.

 

Correct Answer: A

 

 

QUESTION 288

In which modes does selective packet discard (SPD) operate? (Choose three.)

 

A.

discard

B.

random

C.

normal

D.

full

E.

select

 

Correct Answer: BCD

 

 

QUESTION 289

Which of the following statements regarding Control Plane Policing (CoPP) is correct? (Choose three.)

 

A.

Control Plane Policing (CoPP) addresses the need to protect themanagement planes, ensuring routing stability, availability, and critical packet delivery.

B.

Control Plane Policing (CoPP) leverages MQC to define traffic classification criteria and to specify configurable policy actions for the classified traffic.

C.

Control Plane Policing (CoPP) uses a dedicated “control-plane” command via the Modular QoS CLI (MQC) to provide filtering and rate limiting capabilities.

D.

Control Plane Policing (CoPP) uses “service policy” command under relevant interfaces to filter DOS packet to protect routing packets.

E.

Control Plane Policing (CoPP) protects the transit management and data traffic through the router.

 

Correct Answer: ABC

 

 

 

 

 

 

 

QUESTION 290

Which of the following comparison of Control Plane Policing (CoPP) with Receive ACL (RACL) is correct? (Choose two.)

 

A.

CoPP protects against IP spoofing, RACL protects against DoS attacks.

B.

CoPP can not use named access lists, RACL can use named access lists.

C.

CoPP applies to a dedicated control plane interface, RACL applies to all interfaces.

D.

CoPP needs a AAA server, RACL does not need a AAA server.

E.

CoPP supports rate limits, RACL does not support rate limits.

 

Correct Answer: CE

 

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