[Free] 2017(Apr) Ensurepass Passguide Cisco 400-051 Latest Dumps 81-90

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CCIE Collaboration Written Exam

QUESTION 81

Which tag in the SIP header is used by Cisco Unified Communications Manager to deliver a blended identity of alpha URI and number?

 

A.

x-cisco-callinfo

B.

x-cisco-service-control

C.

x-cisco-serviceuri

D.

x-cisco-number

E.

x-cisco-uri

 

Correct Answer: D

Explanation:

Cisco Unified Communications Manager supports blended addressing of directory URIs and directory numbers. When blended addressing is enabled across the network, Cisco Unified Communications Manager inserts both the directory URI and the directory number of the sending party in outgoing SIP Invites, or responses to SIP Invites. The destination endpoint has the option of using either the directory URI or the directory number for its response–both will reach the same destination.

Cisco Unified Communications Manager uses the x-cisco-number tag in the SIP identity headers to communicate a blended address. When both a directory URI and directory number are available for the sending phone and blended addressing is enabled, Cisco Unified Communications Manager uses the directory URI in the From fields of the SIP message and adds the x-cisco-number tag with the accompanying directory number to the SIP identity headers. The x-cisco-number tag identifies the directory number that is associated with the directory URI.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_0_1/ccmfeat/CUCM _BK_F3AC1C0F_00_cucm-features-services-guide-100/CUCM_BK_F3AC1C0F_00_cucm-features-services-guide-100_chapter_0110011.html#CUCM_RF_D0008C2B_00

QUESTION 82

How many music on hold servers are required in a trunk-only megacluster of Cisco Unified Communications Manager Session Management Edition?

 

A.

0

B.

1

C.

2

D.

3

E.

4

 

Correct Answer: A

Explanation:

When considering a megacluster deployment, the primary areas impacting capacity are as follows:

 

The megacluster may contain a total of 21 servers consisting of 16 subscribers, 2 TFTP servers, 2 music on hold (MoH) servers (0 required), and 1 publisher.

Server type must be either Cisco MCS 7845-I3/H3 class or Cisco Unified Computing System (UCS) C-Series or B-Series using the 10K Open Virtualization Archive (OVA) template.

Redundancy model must be 1:1.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_5_1/ccmfeat/fsgd-851-cm/fsmoh.html#wp1027431

 

 

QUESTION 83

Which message is used by a Cisco Unified Communications Manager respond to periodic keepalives from a Cisco IOS MGCP gateway?

 

A.

AUEP

B.

RQNT

C.

NTFY

D.

200

E.

AUCX

 

Correct Answer: D

Explanation:

(2xx) Successful completion: The requested transaction was executed normally.

 

 

QUESTION 84

Which call processing feature overrides the Do Not Disturb settings on a Cisco IP phone?

 

A.

park reversion for remotely parked calls by a shared line

B.

hold reversion

C.

remotely placed pickup request by a shared line

D.

pickup notification

E.

terminating side of a call back

 

Correct Answer: B

< font face="Arial">Explanation:

Hold Reversion and Intercom

Hold reversion and intercom override DND (both options), and the call gets presented normally.

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/7_1_2/ccmfeat/fsgd-712-cm/fsdnd.html#wp1072487

 

 

QUESTION 85

Refer to the exhibit. A user is performing a series of dialing steps on a SCCP IP phone (extension 1001) to call another SCCP IP phone (extension 2003). Both phones are registered to the same Cisco Unified Communications Manager cluster. Which user inputs are sent from the calling IP phone to the Cisco Unified Communications Manager, in the form of SCCP messages, after the user takes the phone off-hook? (The commas in the options are logical separators, not part of the actual user input or SCCP messages.)

 

clip_image002

 

A.

A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 0, 3.

B.

A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 0, 3.

C.

The IP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 2003 has been dialed.

D.

The IP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 201<<03 has been dialed.

E.

A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 2, 0, 0, 3.

 

Correct Answer: B

Explanation:

Because sccp phones send digits DIGIT-by-DIGIT i.e. it sends each digit in real time.

 

Reference:

https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules

 

 

QUESTION 86

According to ITU-T E.164 recommendations, which two fields in the National Significant Number code may be further subdivided? (Choose two.)

 

A.

Country Code

B.

National Destination Code

C.

Subscriber Number

D.

Regional Significant Number

E.

Local User Code

F.

National Numbering Plan

Correct Answer: BC

Explanation:

A telephone number can have a maximum of 15 digits .The first part of the telephone number is the country code (one to three digits) .The second part is the national destination code (NDC). The last part is the subscriber number (SN). The NDC and SN together are collectively called the national (significant) number.

 

 

QUESTION 87

Refer to the exhibit. A user is going through a series of dialing steps on a SIP Type B IP phone (for example, a Cisco 7975) to call an SCCP IP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assuming that the calling SIP phone is not associated with any SIP dial rules, which statement about how digits are forwarded to Cisco Unified Communications Manager for further call processing is true?

 

clip_image004

 

A.

Each digit is sent to Cisco Unified Communications Manager in a SIP NOTIFY message KPML event, at the time that the user enters the digit on the keypad.

B.

The SIP IP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending each digit to Cisco Unified Communications Manager as a separate KPML event in a SIP NOTIFY message.

C.

The SIP IP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending all digits to Cisco Unified Communications Manager in a SIP INVITE message.

D.

The SIP IP phone will wait for the interdigit timer to expire or for the Dial softkey to be selected before sending the first digit in a SIP INVITE and the subsequent digits in SIP INFORMATION messages.

E.

The SIP IP phone will send all digits to Cisco Unified Communications Manager in a SIP INVITE message as soon as the fourth digit is pressed.

 

Correct Answer: A

Explanation:

KPML procedures use a SIP SUBSCRIBE message to register for DTMF digits. The digits themselves are delivered in NOTIFY messages containing an XML encoded body. And it is Out of Band DTMF.

 

 

QUESTION 88

Which device is the initiator of a StationD message in a Cisco Unified Communications Manager SDI trace?

 

A.

SCCP IP phone

B.

SIP IP phone

C.

Cisco Unified Communications Manager

D.

MGCP analog gateway

E.

digital voice gateway

 

Correct Answer: C

Explanation:

All messages to and from a skinny device are preceded by either the words StationD or StationInit. StationD messages are sent from call manager to IP phone. Skinny message transmission such as this between the IP phone and CallManger occurs for every action undertaken by the IP phone, includinginitialization, registration, on-hook, off-hook, dialing of the digits, key press on the phone, and so much more.

 

 

QUESTION 89

How many destinations can be configured for a SIP trunk on a Cisco Unified Communications Manager 9.1 system when the destination address is an SRV?

 

A.

1

B.

2

C.

3

D.

8

E.

16

 

Correct Answer: A

Explanation:

SIP trunks can be configured with up to 16 destination IP addresses, 16 fully qualified domain names, or a single DNS SRV entry.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/8x/uc8x/trunks.html

 

 

QUESTION 90

Which two Cisco Unified Communications
Manager SIP profile configuration parameters for a SIP intercluster trunk are mandatory to enable end-to-end RSVP SIP Preconditions between clusters? (Choose two.)

 

A.

Set the RSVP over SIP parameter to Local RSVP.

B.

Set the RSVP over SIP parameter to E2E.

C.

Set the SIP Rel1XX Options parameter to Disabled.

D.

Set the SIP Rel1XX Options parameter to Send PRACK If 1xx Contains SDP.

E.

Set the SIP Rel1XX Options parameter to Send PRACK for All 1xx Messages.

F.

Check the Fall Back to Local RSVP check box.

 

Correct Answer: BD

Explanation:

Each Unified Communications Manager cluster and Unified CME should have the same configuration information. For example, Application ID should be the same on each Unified Communications Manager cluster and Unified CME. RSVP Service parameters should be the same on each Unified Communications Manager cluster.

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