[Free] February 2017(Feb) Ensurepass Examcollection Cisco 400-101 Practice Test 501-510

Ensurepass

CCIE Routing and Switching Written Exam v5.1

 

QUESTION 501

Refer to the exhibit. You are configuring the S1 switch for the switch port that connects to the client computer. Which configuration blocks users on the port from using more than 6 Mbps of traffic and marks the traffic for a class of service of 1?

 

clip_image002

 

A.

clip_image004

B.

clip_image006

C.

clip_image008

D.

clip_image010

 

Correct Answer: A

Explanation:

Only option A specified that the exceed and violate actions are set to drop for traffic over the CIR of 6 Mbps, and is also configured to set all traffic with a COS of 1 using the “set cos1” command.

 

 

QUESTION 502

Which protocol uses a proprietary 2-byte Type field for multiple protocol support?

 

A.

HDLC

B.

PPP

C.

CHAP

D.

PAP

 

Correct Answer: A

 

 

QUESTION 503

Refer to the exhibit. Which statement about the R1 configuration is true?

 

clip_image012

 

A.

It permits host 10.1.1.2 to establish a Telnet connection to R1.

B.

It limits remote hosts to two SSH connection attempts.

C.

SSH connections to R1 will log out after a 5-minute idle in
terval.

D.

Hosts that reside on network 10.0.0.0/8 can SSH to R1.

E.

The R1 timeout for outgoing SSH connection attempts is 30 seconds.

 

Correct Answer: E

Explanation:

The timeout for outgoing SSH connection is defined by the “ip sshh time-out” command (in seconds), which is configured here as 30.

 

 

QUESTION 504

Which two statements about marking fields are true? (Choose two)

 

A.

The IP Precedence field is in the IP header and is 4 bits long.

B.

The Frame Relay DE field is in the IP header and is 1 bit long.

C.

The 3 priority bits are in 802.1Q/P.

D.

The IP DSCP field is in the IP header and is 6 bits long.

E.

The ToS 6 bits are in the IP header.

 

Correct Answer: CD

 

 

QUESTION 505

Refer to the exhibit. How can Router X in AS70000 peer with Router Y in AS65000, in case Router Y supports only 2-byte ASNs?

 

clip_image014

 

A.

Router X should be configured with a remove-private-as command, because this will establish the peering session with a random private 2-byte ASN.

B.

It is not possible. Router Y must be upgraded to an image that supports 4-byte ASN.

C.

Router Y should be configured with a 4-byte AS using the local-as command.

D.

Router X should be configured with a 2-byte AS using the local-as command.

 

Correct Answer: D

Explanation:

Since router Y does not support 4-byte ASN,s it will not understand any AS numbers larger than 65535, so router X should use the local-as command on the peering statement to router Y to so that it sends in a 2-byte ASN to router Y.

 

 

QUESTION 506

Which two options are contained in the MSG part of a syslog message? (Choose two.)

 

A.

TAG field

B.

CONTENT field

C.

three-digit priority value

D.

IP address of the sending device

E.

TLS port number

 

Correct Answer: AB

 

 

QUESTION 507

Which problem can result when private AS numbers are included in advertisements that are sent to the global Internet BGP table?

 

A.

The prefixes sent with private AS numbers are always discarded on the Internet.

B.

The prefixes sent with private AS numbers are always tagged as invalid on the Internet.

C.

The prefixes sent with private AS numbers lack uniqueness, which can lead to a loss of connectivity.

D.

The prefixes sent with private AS numbers are sometimes tagged as invalid on the Internet.

 

Correct Answer: C

Explanation:

Private AS numbers are not meant to be used for global Internet BGP routing, as they are assigned locally and can be used by any organization. They are meant to enable BGP within a enterprise or VPN, but since these numbers can be used by any organization they are not unique and could cause connectivity loss if leaked to the Internet.

 

 

QUESTION 508

Which multicast protocol uses source trees and RPF?

 

A.

DVMRP

B.

PIM sparse mode

C.

CBT

D.

mOSPF

 

Correct Answer: A

Explanation:

DVMRP builds a parent-child database using a constrained multicast model to build a forwarding tree rooted at the source of the multicast packets. Multicast packets are initially flooded down this source tree. If redundant paths are on the source tree, packets are not forwarded along those paths. Forwarding occurs until prune messages are received on those parent-child links, which further constrains the broadcast of multicast packets. Reference: DVMRP and dense-mode PIM use only source trees and use RPF as previously described.

Reference: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12-1_19_ea1/configuration/guide/3550scg/swmcast.html

 

 

 

 

 

 

 

 

 

 

 

QUESTION 509

Refer to the exhibit. Which three statements about the R1 configuration are true? (Choose three.)

 

clip_image016

 

A.

The virtual circuit identifier is 1611 and the virtual circuit is down.

B.

The local label for the circuit is 4006.

C.

The targeted LDP session to the remote peer is up.

D.

The local label for the circuit is 1611.

E.

The virtual circuit identifier is 4006 and the virtual circuit is down.

F.

The circuit is using MPLS VC type 4.

 

Correct Answer: ABC

Explanation:

The number after the vc is the identifier, which is 1611 in this case. Here, the VC status is shown as down.

As shown, the MPLS VC labels: local 4006, remote unassigned shows the local label used is 4006.

The targeted LDP session is up as verified by the “Signalling protocol: LDP, peer 172.16.12.70 up” statement in the output.

 

 

 

 

 

 

 

 

QUESTION 510

Refer to the exhibit. Which log levels are enabled for the console?

 

clip_image018

 

A.

informational only

B.

informational and debugging

C.

informational, debugging, notifications, warnings, errors, critical, alerts, and emergencies

D.

informational,
notifications, warnings, errors, critical, alerts, and emergencies

 

Correct Answer: D

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