exam 642-456 preparation questions

Exam 642-456 study material

Made available by Aonetesting.com

Free 642-456 Exam Preparation Questions

Exam 642-456: Implementing Cisco Unified Communications Manager Part 2

For Latest 642-456 Exam Questions and study guides- visit- http://www.aonetesting.com/642-456.html

http://www.aonetesting.com/642-456.html



Question:1 Refer to the exhibit. With the Mobile Connect feature configured, when the PSTN phone calls the Enterprise user at extension 3001, the Enterprise user's mobile phone does not ring. Which CSS is responsible for ensuring that the correct partitions are accessed when calls are sent to the Enterprise user's mobile phone?

A. The gateway CSS B. The Phone Device CSS C. The Remote Destination Profile CSS D. The Remote Destination Profile Rerouting CSS E. The Phone Line(DN)CSS

Answer: D Question:2 In order to have Secure Conferencing resources, what is required? A. Media Termination Point B. IOS DSP farm C. Software conference bridge D. Hardware transcoder

Answer: B Question:3 The following exhibit shows configs for H.323 gateway. You have been asked to implement TEHO from a remote branch office with area code 301 to the HQ office with area code 201 using Cisco Unified Communications Manager. The remote office has an MGCP gateway and the HQ office has an H.323 gateway. Once the call arrives at the HQ, it should break out to the PSTN as a seven-digit local call. Which statement about the route pattern is true?


A. Route pattern should be 91201.[2-9]XXXXXX with Discard Digit as Predot and Prefix 9 B. Route pattern should be 91201.[2-9]XXXXXX with Discard Digit as Predot C. Route pattern should be 91201.[2-9]XXXXXX D. Route pattern should be 9.1201[2-9]XXXXXX with Discard Digit as Predot E. Route pattern should be 9.1201[2-9]XXXXXX with Discard Digit as Predot and Prefix 9

Answer: A Question:4 Drop

Answer:


Question:5 What is the best practice to employ when using certificates between a browser and the Cisco Unified Communications Manager server? A. Accept the certificate when the security alert pop-up window appears. B. Use SSH exclusively to verify the thumbprint of the certificate and then send the certificate to all

Web browser users that require access to the server. C. Use either SSH or CLI to view the thumbprint of the certificate and then communicate the

information to all Web browser users so they already have it available when they receive the security alert.

D. Note the thumbprint of the Cisco Unified Communications Manager certificates after installation and then communicate the information to all Web browser users so they have it available when they receive the security alert.

E. Install thumbprint readers on the devices that need to connect to the Cisco Unified Communications Manager servers via HTTPS.

Answer: D Question:6 SRTP is used for which two services? (Choose two.) A. Accounting B. Encryption C. TLS D. Authentication E. Key Generation

Answer: B, D Question:7 Refer to the exhibit. IT shows an H.323 gateway configuration in a Cisco Unified Communications Manager environment. An inbound PSTN call to this H.323 gateway fails to connect to IP phone extension 2001. The PSTN user hears a reorder tone. Debug isdn q931 on the H.323 gateway shows the correct called-party number as 5015552001. Which two configuration changes can correct this issue? (Choose two.)


A. Add port 1/0:23 to dial-peer voice 123 pots. B. Ensure that the Significant Digits for inbound calls on the H.323 gateway configuration is 4. C. Add a voice translation profile to truncate the number from 10 digits to 4 digits. Apply the voice

translation profile to the Voice-port. The configuration field "Significant Digits for inbound calls" is left at default ( All ).

D. Add the command h323-gateway voip id on interface vlan120. E. Change the destination-pattern on the dial-peer voice 23000 VoIP to 501501? and change the

F. Significant Digits for inbound calls to 4.

Answer: A, C Question:8 You have five clusters with three Cisco Unified Communications Manager systems in each. How many Intercluster Trunks must be configured to provide full server redundancy if a gatekeeper is present in the network? A. 1 B. 2 C. 3 D. 4 E. 5 F. 6


Answer: E Question:9 When configuring security in an IP telephony network, which two are required at a minimum for SRTP to function properly? (Choose two.) A. CTL B. Cisco Unified Communications Manager C. MGCP Gateway D. PKI E. IP phones

Answer: B, E Question:10 Which two qualities of PKI key exchange overcome asymmetric cryptography scalability issues? (Choose two.) A. The trusted introducer uses the signed certificates of the endpoints that need to communicate B. PKI uses only a single trusted introducer C. The trusted introducer uses the private key of each enrolling user and the public key of the

introducer as the signed certificate D. Only the public key of the introducer has to be initially known and verified by all other entities E. The introducer digitally signs the public key of the user with the public key of the introducer to

generate a signed certificate

Answer: B, D Question:11 To enable security on an IP phone, where should the security configuration take place? A. Phone Device Configuration only B. Phone Security Profile and Phone Device Configuration C. Phone Security Profile only D. User Profile Configuration and Phone Device Configuration E. Device Pool Configuration Answer: B Question:12 Which statement accurately describes AAR? A. AAR allows calls to be rerouted due to insufficient gatekeeper controlled IP WAN bandwidth. B. AAR allows calls to be rerouted because of insufficient Cisco Unified Border Element

controlled bandwidth to an ITSP. C. AAR will display "not enough bandwidth" on the IP phone while it reroutes the call. D. The end users sees, "Network Congestion Rerouting?" but AAR is otherwise transparent to the end

user and works without user intervention. E. AAR works with only centralized and distributed call processing environments. Answer: D Question:13 What are two requirements for configuring an Intercluster Trunk (gatekeeper-controlled) in Cisco Unified Communications Manager? (Choose two.) A. The assigned name must be unique within the cluster. B. The Intercluster Trunk must have the same name in both clusters. C. The Cisco Unified Communications Manager group in the assigned device pool will determine

which Cisco Unified Communications Manager systems register with the gatekeeper. D. The IP addresses of Cisco Unified Communications Manager systems in the remote cluster must

be specified. E. The gatekeeper must be defined in Cisco Unified Communications Manager before the

intercluster trunk is added. F. RSVP must be enabled to provide CAC between clusters.

Answer: A, E


Question:14 Refer to the exhibit. You have configured H.225 gatekeeper controlled trunks from the HQ and Region clusters. When you use the show gatekeeper endpoint command the trunks for Region cluster show up but not the trunks from HQ. What is the issue?

A. The IP address for each H.225 trunk needs to be the same. B. The names of the two H.225 trunks in the trunk configuration for Cluster 1 and Cluster 2 need to be

different. C. The zone name for the HQ cluster has to be the same as the zone name for the Region

cluster. D. The technology prefix for the two clusters has to be different for the H.225 trunks to register

properly with the gatekeeper.

Answer: B Question:15 When an external call is placed from Ajax, they would like the ANI that is sent to the PSTN to be the main number, not the extension. For domestic calls, they would like 10 digits sent; for international calls, they would like to send the country code 1 and the 10 digits. How can this be accomplished? A. Add a translation pattern to the dial peers in the gateway that adds the appropriate digits to the

outgoing ANI. B. In the external call route patterns, set the external phone number mask to the main number. Use

10 digits in the domestic route pattern and 1 followed by the main number digits in the international route patterns.

C. Use a calling party transform mask for each route group in the corresponding route list configuration. Set the explicit 10-digit main number for domestic calls and 1 followed by the main number for the international route patterns.

D. In the directory number configurations, set the prefix digits field to the country code and the 10 digits of the main number. This will be truncated to the 10-digit number for domestic calls and sent out in its entirety for international calls.

Answer: C Question:16 Refer to the exhibit. You are working with a client that has two large offices, one in New York and one in Los Angles. They would like to place calls between the two facilities over the IP WAN through H.323


gateways and a gatekeeper. Each office has a three-digit site code and users dial five-digit extensions. Which configuration component(s) will the gatekeeper use to route calls?

A. The IP address of the gatekeeper B. The IDs of each of the gateways C. The tech prefix of each gateway D. The tech prefix and ID of each gateway

E. The bandwidth session zone command

Answer: C Question:17 If your IP telephony administrator asks you to configure a local zone for your dial plan to control the volume of calls between two end points in a distributed multisite environment, which type of Call Admission Control will you be implementing? A. Locations based B. Automated alternate routing C. Gatekeeper based D. SRST

Answer: C Question:18 Which two statements describe the functions of AAR? (Choose two.) A. AAR works for calls placed to internal and external directory numbers (TEHO). B. The number specified in the AAR destination mask is known as the call forward no bandwidth

(CFNB) destination. C. AAR provides a fallback mechanism for calls denied by locations-based CAC or RSVP

enabled locations-based CAC. D. AAR cannot be used for hunt pilots, CTI route points or CTI ports. E. AAR is a fallback mechanism for calls which are denied by locations-based CAC or RSVP-enabled

locations-based CAC and also applies to calls denied by gateways due to exceeding the available or administratively permitted number of channels.

Answer: B, C


Question:19 Drop

Answer: Question:20

If your IP telephony administrator asks you to configure a local zone for your dial plan to control the volume of calls between two end points in a centralized multisite environment, which two types of Call Admission Control can be implemented? (Choose two.) A. Locations based B. Automated alternate routing C. Gatekeeper based D. SRST E. Cisco Unified Communications Manager based

Answer: A, C


For complete Exam 642-456 Training kits and Self-Paced Study Material

Visit:http://www.aonetesting.com/642-456.html

http://www.aonetesting.com


http://www.aonetesting.com/



exam 642-456 preparation questions

Documents