[Free] 2017(Oct) Dumps4cert Testinsides Cisco 400-051 Dumps with VCE and PDF Download 421-430

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CCIE Collaboration (v1.1)

Question No: 421 – (Topic 4)

When neither the active or standby Location Bandwidth Manager in the configured LBM group is available, what will the Cisco CallManager service on a subscriber Cisco Unified Communications Manager server do to make location CAC decisions?

  1. It will attempt to communicate with the first configured member in the Location Bandwidth Manager hub group.

  2. It will use the Call Treatment When No LBM Available service parameter with the default action to allow calls.

  3. It will use the Call Treatment When No LBM Available service parameter with the default action to reject calls.

  4. It will attempt to communicate with the local LBM service for location CAC decisions.

  5. It will allow all calls until communication is reestablished with any configured servers in the LBM group.

Answer: D Explanation:

By default the Cisco CallManager service communicates with the local LBM service; however, LBM groups can be used to manage this communication. LBM groups provide an active and standby LBM in order to create redundancy for Unified CM call control.

Question No: 422 – (Topic 4)

Router A and router B are Cisco IOS routers with hardware CFB resources that are registered to the same Cisco Unified Communications Manager server. Which Media Resource Group and Media Resource Group List configuration should be implemented if an administrator wants to make sure that all provisioned DSPs on router A are consumed

before router B#39;s DSP is used?

  1. Router A#39;s CFB and router B#39;s CFB should each be configured in its own MRG. Both MRGs should then be grouped into the same MRGL, but the MRG that contains router A#39;s CFB should be listed in higher order than the MRG that contains router B#39;s CFB. Finally, associate the MRGL to all conference resource consumers.

  2. Router A#39;s CFB and router B#39;s CFB should each be configured in its own MRG. Both MRGs should then be further separated into different MRGLs. Finally, associate the MRGL that contains router A#39;s CFB in higher order than router B#39;s CFB to all conference resource consumers.

  3. Router A#39;s CFB and router B#39;s CFB should both be configured in the same MRG with router A#39;s CFB listed higher than that of router B. Then associate the MRG with an MRGL and apply it to all conference resource consumers.

  4. Router A#39;s CFB and router B#39;s CFB should both be configured in the same MRG. Make sure router A#39;s CFB is listed in a higher alphabetical order than router B#39;s CFB. Then associate the MRG with an MRGL and apply it to all conference resource consumers.

  5. Router A#39;s CFB and router B#39;s CFB should both be configured in the same MRG. Use Cisco Unified Communications Manager service parameters to assign a higher priority to router A#39;s CFB. Then associate the MRG with an MRGL and apply it to all conference resource consumers.

Answer: A

Question No: 423 – (Topic 4)

Which option is a characteristic of the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager?

  1. It accounts for network protocol rerouting.

  2. It accounts for network downtime and failures.

  3. It supports dynamic bandwidth adjustments based on WAN topology changes.

  4. It supports asymmetric media flows such that different bit rates in each direction are deducted accordingly.

  5. Unidirectional media flows are deducted as if they were bidirectional.

Answer: E Explanation:

Network Modeling with Locations, Links, and Weights

Enhanced Location CAC is a model-based static CAC mechanism. Enhanced Location CAC involves using the administration interface in Unified CM to configure Locations and

Links to model the quot;Routed WAN Networkquot; in an attempt to represent how the WAN network topology routes media between groups of endpoints for end-to-end audio, video, and immersive calls. Although Unified CM provides configuration and serviceability interfaces in order to model the network, it is still a quot;staticquot; CAC mechanism that does not take into account network failures and network protocol rerouting. Therefore, the model needs to be updated when the WAN network topology changes. Enhanced Location CAC is also call oriented, and bandwidth deductions are per-call not per-stream, so asymmetric media flows where the bit-rate is higher in one direction than in the other will always deduct for the highest bit rate. In addition, unidirectional media flows will be deducted as if they were bidirectional media flows.

Reference: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab10/collab10/cac.htm l

Question No: 424 – (Topic 4)

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.)

  1. Set the RSVP over SIP parameter to Local RSVP.

  2. Set the RSVP over SIP parameter to E2E.

  3. Set the SIP Rel1XX Options parameter to Disabled.

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

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

  6. Check the Fall Back to Local RSVP check box.

Answer: B,D 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.

Question No: 425 – (Topic 4)

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

  1. 4

  2. 8

  3. 12

  4. 16

  5. 32

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 No: 426 – (Topic 4)

Which two call processing features have a lower priority than the Do Not Disturb settings on a Cisco IP phone? (Choose two.)

  1. park reversion for a locally parked call

  2. hold reversion

  3. intercom

  4. pickup notification

  5. terminating side of a call back

  6. originating side of a call back

Answer: D,E Explanation:

For the DND Ringer Off option, only visual notification gets presented to the device. For the DND Call Reject option, no notification gets presented to the device.

For the terminating side of the call, Do Not Disturb overrides call back:

->When the phone that terminates the call uses DND Ringer Off, the Callback Available screen will be displayed on the phone after the terminating side goes off hook and on hook.

When the phone that terminates the call has DND Call Reject enabled but the phone

becomes available (goes off hook and on hook), a new screen will be presented to the originating device as “lt;Extensiongt; has become available but is on DND-R”. Callback available notification will be sent only after the terminating side disables DND Call Reject.

Question No: 427 – (Topic 4)

Refer to the exhibit.

Dumps4Cert 2017 PDF and VCE

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?

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

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 No: 428 – (Topic 4)

Refer to the exhibit.

Dumps4Cert 2017 PDF and VCE

A user is going through a series of dialing steps on a SIP Type A IP phone to call a SCCP IP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assume that the calling SIP phone is not associated with any SIP dial rules.

Which statement about how digits are forwarded to the Cisco Unified Communications Manager for further call processing is true?

  1. As each digit is pressed on the SIP IP phone, it is sent to the Cisco Unified Communications Manager in a SIP NOTIFY message as a KPML event.

  2. The SIP IP phone waits for the inter-digit timer expiry and then sends each digit to the Cisco Unified Communications Manager as a separate KPML event in a SIP NOTIFY message.

  3. The SIP IP phone waits for the inter-digit timer expiry or for the Dial soft key to be selected before it sends all digits to the Cisco Unified Communications Manager in a SIP INVITE message.

  4. The SIP IP phone waits for the inter-digit timer expiry, or for the Dial soft key to be selected before it sends the first digit in a SIP INVITE and the subsequent digits in SIP NOTIFY messages.

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

Answer: C

Explanation:

Because Type A SIP phone with no SIP dial rules sends digit in Enbloc style.All digits are sent to CUCM after the user completes the dialing and press the Dial softkey.

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

Question No: 429 – (Topic 4)

Refer to the exhibit.

Dumps4Cert 2017 PDF and VCE

All displayed devices are registered to the same Cisco Unified Communications Manager server and the phones are engaged in an active call. Assume that the provided configurations exist at the phone line level and multicast MOH is disabled cluster wide.

Which description of what will happen when the user of IP phone A presses the Hold soft key is true?

  1. IP phone B receives audio source 2 from MOH server A.

  2. IP phone B receives audio source 3 from MOH server A.

  3. IP phone B receives audio source 2 from MOH server B.

  4. IP phone B receives audio source 3 from MOH server B.

  5. IP phone B receives audio source 1 from MOH server A.

Answer: C Explanation:

Because audio source 2 is in top of the MRGL List and it will be selected locally first.

Question No: 430 – (Topic 4)

Which Cisco Unified Communications Manager deployment model for clustering over the IP WAN mandates a primary and a backup subscriber at the same site?

  1. multisite with centralized call processing

  2. multisite with distributed call processing

  3. local failover

  4. remote failover

  5. remote failover with Cisco Unified Communications Manager Express as SRST

Answer: C Explanation: Explanation:

Clustering Over the IP WAN

You may deploy a single Unified CM cluster across multiple sites that are connected by an IP WAN with QoS features enabled. This section provides a brief overview of clustering over the WAN. For further information, refer to the chapter on Call Processing.

Clustering over the WAN can support two types of deployments:

鈥ocal Failover Deployment Model

Local failover requires that you place the Unified CM subscriber and backup servers at the same site, with no WAN between them. This type of deployment is ideal for two to four sites with Unified CM.

鈥emote Failover Deployment Model

Remote failover allows you to deploy primary and backup call processing servers split across the WAN. Using this type of deployment, you may have up to eight sites with Unified CM subscribers being backed up by Unified CM subscribers at another site.

Reference: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/4x/42models.html

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