[Free] 2017(Apr) Ensurepass Passguide Cisco 400-051 Latest Dumps 131-140

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CCIE Collaboration Written Exam

QUESTION 131

Refer to the exhibit. Your customer sent you this debug output, captured on a Cisco IOS router (router A), to troubleshoot a problem where all H.323 calls that originate from another Cisco IOS router (router B) are being dropped almost immediately after arriving at router A. What is the reason for these disconnected calls?

 

clip_image002

 

A.

Calls were unsuccessful because of internal, memory-related problems on router A.

B.

Calls were rejected because the called number was denied on a configured class of restriction list on router A.

C.

Calls were rejected because the VoIP dial peer 1002 was not operational.

D.

Calls were unsuccessful because the router B IP address was not found in the trusted source IP address list on router A.

E.

Calls were rejected by router A because it received an admission reject from its gatekeeper because of toll fraud suspicion.

 

Correct Answer: D

Explanation:

Trusted source IP address list on router is a list which secures the connectivity of router if it is enabled then we need to give the trusted entry for any route to reach.

 

 

QUESTION 132

Which two Cisco IOS multipoint video conferencing profiles are supported on the Cisco Integrated Router Generation 2 with packet voice and video digital signal processor 3? (Choose two.)

 

A.

homogeneous

B.

rendezvous

C.

guaranteed-audio

D.

scheduled

E.

guaranteed-video

F.

ad-hoc

 

Correct Answer: AC

Explanation:

Q. What video conferences are supported?

A.Three types of video profiles are supported: homogeneous conferences (video switching), heterogeneous conferences (video mixing), and guaranteed audio conferences (best-effort video).

 

Reference:

http://www.cisco.com/c/en/us/products/collateral/unified-communications/voice-video-conferencing-isr-routers/qa_c67-649850.html

 

 

QUESTION 133

Refer to the exhibit. Which option describes how this Cisco IOS SIP gateway, with an analog phone attached to its FXS port, handles an incoming informational SIP 180 response message without SDP?

 

clip_image003

 

A.

It will enable early media cut-through.

B.

It will generate local ring back.

C.

It will do nothing because the message is informational.

D.

It will terminate the call because this is an unsupported message format.

E.

It will take the FXS port offhook.

 

Correct Answer: B

Explanation:

The Session Initiation Protocol (SIP) feature allows you to specify whether 180 messages with Session Description Protocol (SDP) are handled in the same way as 183 responses with SDP. The 180 Ringing message is a provisional or informational response used to indicate that the INVITE message has been received by the user agent and that alerting is taking place. The 183 Session Progress response indicates that information about the call state is present in the message body media information. Both 180 and 183 messages may contain SDP, which allows an early media session to be established prior to the call being answered.

Prior to this feature, Cisco gateways handled a 180 Ringing response with SDP in the same manner as a 183 Session Progress response; that is, the SDP was assumed to be an indication that the far end would send early media. Cisco gateways handled a 180 response without SDP by providing local ringback, rather than early media cut-through. This feature provides the capability to ignore the presence or absence of SDP in 180 messages, and as a result, treat all 180 messages in a uniform manner. The SIP–Enhanced 180 Provisional Response Handling feature allows you to specify which call treatment, early media or local ringback, is provided for 180 responses with SDP.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/ios/voice/cube/configuration/guide/vb_book/vb_book/vb_1506.html

 

 

QUESTION 134

Which two types of line codes are configurable for an E1 PRI controller on a Cisco IOS router? (Choose two.)

 

A.

CRC4

B.

AMI

C.

B8ZS

D.

HDB3

E.

ESF

F.

SF

 

Correct Answer: BD

Explanation:

Configuring an NM-xCE1T1-PRI Card for an E1 Interface

Perform this task to select and configure an NM-xCE1T1-PRI network module card as E1.

SUMMARY STEPS

1. enable

2. configure terminal

3. card type e1 slot

4. controller e1 slot / port

5. linecode {ami | hdb3}

6. framing {crc4 | no-crc4}

 

Reference:

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/interface/configuration/12-4/ir-12-4-book/ir-12-port-chann-nm.html

 

 

 

 

QUESTION 135

Refer to the exhibit. Which two statements about the show command output are true? (Choose two.)

 

clip_image005

 

A.

T1 0/2/1 terminates Q.921 signaling to a Cisco Unified Communications Manager server.

B.

T1 0/0/0 terminates Q.921 signaling on the gateway.

C.

T1 0/0/0 terminate
s SIP Signaling to a Cisco Unified Communications Manager server.

D.

T1 0/0/0 terminates Q.931 signaling to a Cisco Unified Communications Manager server.

E.

T1 0/2/1 terminates Q.931 signaling on the gateway.

 

Correct Answer: BD

Explanation:

As you can see the T1 0/0/0:23 interface is active in layer 1,2(multi frame established) & 3,it means Q.931 signaling terminates at gateway and using backhauled technique q931 messages are going to CUCM server.

But in case of T1 0/2/1 port multi frames are not established in layer 2.So, it’s not configured properly & doesn’t backhauling q931 messages to CUCM.

 

 

QUESTION 136

Which digital modulation method is used to transmit caller ID information on analog FXS ports on Cisco IOS routers?

 

A.

DTMF

B.

PSK

C.

FSK

D.

MF

E.

pulse dialing

 

Correct Answer: C

Explanation:

http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/vcr1/vcr1-cr-book/vcr-c4.html

 

 

 

QUESTION 137

Refer to the exhibit. How many inbound calls can be handled simultaneously between ephone 1 and ephone 2 before a user busy tone is returned?

 

clip_image006

 

A.

6

B.

7

C.

8

D.

9

E.

11

 

Correct Answer: A

Explanation:

Because hunt stop channel is set to 6 as it enables call hunting to up to six channels of this ephone-dn and remaining 2 channels
are available for outgoing call features.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucme/command/reference/cme_cr/c me_e1ht.htmlQUESTION 138

Refer to the exhibit. How many simultaneous outbound calls are possible with this Cisco Unified Communications Manager Express configuration on these two phones?

 

clip_image006[1]

 

A.

6

B.

7

C.

8

D.

9

E.

11

 

Correct Answer: C

Explanation:

Ephone is configured as octo line so maximum call number is 8 and it will be divided between lines.

 

 

 

QUESTION 139

Refer to the exhibit. Which option describes the method used by Cisco IOS gateways to tunnel QSIG signaling messages in H.323 protocol?

 

clip_image007

 

A.

H.323 Annex M1

B.

H.323 Annex M2

C.

H.323 Annex A

D.

ISDN Generic Transparency Descriptor

E.

H.450.1

 

Correct Answer: D

Explanation:

H.323 is an umbrella recommendation that encompasses various ITU-T recommendations, primarily recommendations H.225.0 and H.245 (basic communication capabilities) and recommendation H.450.1 (generic functional protocol for the support of supplementary services). Tunneling QSIG over H.323 is specified in H.323 Annex-M1. However, Cisco IOS ® Software H.323 QSIG tunneling does not implement Annex-M1 (as the Cisco Unified Communications Manager H.323 implementation does). Instead it uses the ISDN Generic Transparency Descriptor (GTD) to transport QSIG messages in the corresponding H.225 message to another Cisco gateway device on the other side of the network.

 

Reference:

http://www.cisco.com/c/en/us/solutions/collateral/enterprise-networks/empowered-branch-solution/white_paper_c11_459092.html

 

 

QUESTION 140

Refer to the exhibit. This output was captured on a Cisco IOS gateway shortly after it became the active Cisco Unified Border Element in a box-to-box redundancy failover. How many calls are native to this Cisco Unified Border Element?

 

clip_image008

 

A.

9

B.

12

C.

19

D.

31

E.

40

 

Correct Answer: D

Explanation:

Total no of calls =28+12=40.

So, native calls are =40-9=31.

 

Reference:

http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-border-element/112095-cube-hsrp-config-00.html.

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