[Free] 2017(Apr) Ensurepass Passguide Cisco 400-051 Latest Dumps 91-100

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CCIE Collaboration Written Exam

QUESTION 91

What is the maximum one-way delay, in milliseconds, between any two Cisco Unified Communications Manager servers in a non-Session Management Edition cluster over an IP WAN?

 

A.

20

B.

40

C.

80

D.

160

E.

250

 

Correct Answer: B

Explanation:

The maximum one-way delay between any two Unified CM servers should not exceed 40 msec, or 80 msec round-trip time. Propagation delay between two sites introduces 6 microseconds per kilometer without any other network delays being considered. This equates to a theoretical maximum distance of approximately 3000 km for 20 ms delay or approximately 1860 miles. These distances are provided only as relative guidelines and in reality will be shorter due to other delay incurred within the network.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/7x/uc7_0/models.html

 

 

QUESTION 92

Which Device Pool configuration setting will override the device-level settings only when a device is roaming within a device mobility group?

 

A.

Region

B.

Location

C.

SRST Reference

D.

Calling Party Transformation CSS

E.

Media Resource Group List

 

Correct Answer: D

Explanation:

Device Mobility Related Settings:

The parameters under these settings will override the device-level settings only when the device is roaming within a Device Mobility Group. The parameters included in these settings are:

 

Device Mobility Calling Search Space

AAR Calling Search Space

AAR Group

Calling Party Transformation CSS

Called Party Transformation CSS

 

The device mobility related settings affect the dial plan because the calling search space dictates the patterns that can be dialed or the devices that can be reached.

QUESTION 93

Which two applications can connect directly with a Cisco Unified Communications Manager Session Management Edition cluster? (Choose two.)

 

A.

Cisco Unity

B.

Cisco Unified Meeting Place Express

C.

Cisco Unified Contact Center Enterprise

D.

Cisco Unified Contact Center Express

E.

Cisco Unified Communications Manager Attendant Console

F.

Cisco Emergency Responder

 

Correct Answer: AB

Explanation:

The deployment of a Unified CM Session Management Edition enables commonly used applications such as conferencing or videoconferencing to connect directly to the Session Management cluster, thus reducing the overhead of managing multiple trunks to leaf systems. Cisco Unity or other voicemail systems can be deployed at all sites and integrated into the Unified CM cluster.

 

 

QUESTION 94

Which configuration parameter defines whether or not the user portion of a directory URI is case sensitive on Cisco Unified Communications Manager 9.1 or later?

 

A.

URI Dialing Display Preference in Cisco CallManager Service Parameter

B.

URI Lookup Policy in Cisco CallManager Service Parameter

C.

URI Dialing Display Preference in Enterprise Parameters

D.

URI Lookup Policy in Enterprise Parameters

E.

The user portion of a directory URI is always case sensitive and cannot be changed.

 

Correct Answer: D

Explanation:

Cisco Unified Communications Manager supports the following formats in the user portion of a directory URI (the portion before the @ symbol):

 

Accepted characters are a-z, A-Z, 0-9, !, $, %, &, *, _, +, ~, -, =, \, ?, \, `, ,, ., /.

The user portion has a maximum length of 47 characters.

The user portion accepts percent encoding from %2[0-9A-F] through %7[0-9A-F].

For some accepted characters, Unified CM automatically applies percent encoding. See below for more information on percent encoding.

The user portion is case-sensitive or case-insensitive depending on the value of the URI Lookup Policy enterprise parameter. The default value is case-sensitive.

 

Reference:

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/bat/9_1_1/CUCM_BK_C271A69D_00_cucm-bulk-administration-guide-91/CUCM_BK_C271A69D_00_cucm-bulk- administration-guide-91_chapter_01001110.html

 

 

QUESTION 95

What does a weight represent in the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager?

 

A.

It defines the bandwidth that is available between locations.

B.

It defines the bandwidth that is available on a link.

C.

It is the amount of bandwidth allocation for different types of traffic.

D.

It is used to provide the relative priority of a link between locations.

E.

It is used to provide the relative priority of a location.

 

Correct Answer: D

Explanation:

A weight provides the relative priority of a link in forming the effective path between any pair of locations. The effective path is the path used by Unified CM for the bandwidth calculations, and it has the least cumulative weight of all possible paths. Weights are used on links to provide a “cost” for the “effective path” and are pertinent only when there is more than one path between any two locations.

 

 

QUESTION 96

Refer to the exhibit. All displayed devices are registered to the same Cisco Unified Communications Manager server and the phones are engaged in an active call. Assuming the provided configurations exist at the phone line level and multicast MOH is disabled clusterwide, what will happen when the user of IP Phone A presses the Transfer softkey?

 

clip_image002

 

A.

The IP Phone B user hears audio source 3 from MOH Server A.

B.

The IP Phone B user hears audio source 4 from MOH Server B.

C.

The IP Phone B user hears audio source 3 from MOH Server B.

D.

The IP Phone B user hears audio source 2 from MOH Server B.

E.

The IP Phone A user hears no on-hold music.

 

Correct Answer: C

Explanation:

Held parties determine the media resource group list that a Cisco Unified Communications Manager uses to allocate a music on hold resource.

 

 

QUESTION 97

What is the maximum number of Cisco Unified Communications Manager subscriber pairs in a megacluster deployment?

 

A.

4

B.

8

C.

12

D.

16

E.

32

 

Correct Answer: B

Explanation:

There can be up to 8 pairs of subscribers, 16 subscribers total and must be in a 1:1 redundancy mode (8 active, 8 standby).

 

 

QUESTION 98

Which Cisco Unified Communications Manager partition will be associated with a directory URI that is configured for an end user with a primary extension?

 

A.

null

B.

none

C.

directory URI

D.

default

E.

any partition that the Cisco Unified Communications Manager administrator desires

 

Correct Answer: C

Explanation:

Cisco Unified Communications Manager supports dialing using directory URIs for call addressing. Directory URIs look like email addresses and follow the username@host format where the host portion is an IPv4 address or a fully qualified domain name. A directory URI is a uniform resource identifier, a string of characters that can be used to identify a directory number. If that directory number is assigned to a phone, Cisco Unified Communications Manager can route calls to that phone using the directory URI. URI dialing is available for SIP and SCCP endpoints that support directory URIs.

 

 

QUESTION 99

In a Cisco Unified Communications Manager design where +E.164 destinations are populated in directory entries, which call routing practice is critical to prevent unnecessary toll charges caused by internal calls routed through the PSTN?

 

A.

forced on-net routing

B.

automated alternate routing

C.

forced authorization codes

D.

client matter codes

E.

tail-end hop-off

 

Correct Answer: A

Explanation:

Forced On-Net Routing

It is not uncommon for the dialing habits for on-net/inter-site and off-net destinations to use the same addressing structure. In this case the call control decides whether the addressed endpoint, user, or application is on-net or off-net based on the dialed address, and will treat the call as on-net or off-net, respectively.

Figure 14-4 shows an example of this forced on-net routing. All four calls in this example are dialed as 91 plus 10 digits. But while the calls to +1 408 555 2345 and +1 212 555 7000 are really routed as off-net calls through the PSTN gateway, the other two calls are routed as on-net calls because the call control identifies the ultimate destinations as on-net destinations. Forced on-net routing clearly shows that the dialing habit used does not necessarily also determine how a call is routed. In this example, some calls are routed as on-net calls even though the used PSTN dialing habit seems to indicate that an off-net destination is called.

Figure 14-4 Forced On-Net Routing

 

clip_image003

 

Forced on-net routing is especially important if dialing of +E.164 destinations from directories is implemented. In a normalized directory, all destinations are defined as +E.164 numbers, regardless of whether the person that the number is associated with is internal or external. In this case forced on-net routing is a mandatory requirement to avoid charges caused by internal calls routed through the PSTN.

 

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab09/clb09/dialplan.html

 

 

QUESTION 100

What does a period accomplish when it is used in a SIP Dial Rule pattern that is associated with a Cisco 9971 IP Phone that is registered to Cisco Unified Communications Manager?

 

A.

It matches any single digit from 0 to 9.

B.

It matches one or more digits from 0 to 9.

C.

It is a delimiter and has no significant dialing impact.

D.

It matches any single digit from 0 to 9, or the asterisk (*) or pound (#) symbols.

E.

It matches one or more digits from 0 to 9, or the asterisk (*) or pound (#) symbols.

 

Correct Answer: D

Explanation:

Asterisk (*) matches one or more characters. The * gets processed as a wildcard character. You can override this by preceding the * with a backward slash (\) escape sequence, which results in the sequence \*. The phone automatically strips the \, so it does not appear in the outgoing dial string. When * is received as a dial digit, it gets matched by the wildcard characters * and period (.).

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