Cisco 642-427 Online Practice Questions and Exam Preparation

Cisco 642-427 Online Questions & Answers

• Question 241:

  Users can log in to Cisco Extension Mobility, but they cannot log out. Which action solves this problem?

  A. Subscribe the device profile to Cisco Unified Communications Manager Extension Mobility.
  B. Create a new Cisco Unified Communications Manager Extension Mobility service.
  C. Apply the Cisco Unified Communications Manager Extension Mobility service to the IP phones that have trouble logging out.
  D. Change or remove the Calling Search Space on the phones that have trouble logging out of Cisco Unified Communications Manager Extension Mobility.
  A. Subscribe the device profile to Cisco Unified Communications Manager Extension Mobility.

• Question 242:

  Nine users in a branch office frequently have audio conferences with each other and their clients who call in from the PSTN. They frequently report poor audio quality during conference calls. A 500 kb/s WAN link connects the branch office and headquarters, which hosts the Cisco Unified Communications Manager cluster.

  Which troubleshooting solution most directly improves their audio quality during conference calls?

  A. Enable hardware conferencing on the headquarters router and integrate with Cisco Unified CM.
  B. Enable hardware conferencing on the branch router and integrate with Cisco Unified CM.
  C. Enable software conferencing in headquarters internal to Cisco Unified CM.
  D. Enable LLQ on the branch router and the headquarters router.
  B. Enable hardware conferencing on the branch router and integrate with Cisco Unified CM.

• Question 243:

  Please choose four mandatory features of an H.323 gatekeeper from the following items.

  A. Admission control
  B. Address resolution
  C. Bandwidth control
  D. Zone management
  A. Admission control
  B. Address resolution
  C. Bandwidth control
  D. Zone management

• Question 244:

  Which size is the jitter buffer of the Cisco MTP transcoder?

  A. 10 - 30 ms
  B. 45 - 60 ms
  C. 20 - 40 ms
  D. 25 - 50 ms
  C. 20 - 40 ms

• Question 245:

  Which tool or approach is the most effective to display detailed real-time output of CPU utilization of Cisco Unified Communications Manager servers for troubleshooting purposes?

  A. RTMT
  B. DNA
  C. creating trace files
  D. sniffer traces
  A. RTMT

• Question 246:

  Two Cisco Unified Communications Manager clusters have recently been installed. One is in Tokyo and the other in Chicago connected by a WAN link. You have started the configuration of a SIP trunk and you are integrating the dial plans. All phones in Tokyo can call all phones in Chicago, but no phones in Chicago can call Tokyo phones.

  Which two statements are possible causes? (Choose two.)

  A. The SIP trunk is configured from Tokyo to Chicago, but not from Tokyo to Chicago.
  B. The CSS of the Chicago phones does not include the partition of the route pattern to point to Tokyo.
  C. Tokyo phones are in a CSS that is not in the partition of the route pattern to call from Tokyo to Chicago.
  D. The Tokyo SIP trunk inbound CSS does not contain the partition of the Tokyo phones.
  E. The SIP trunk in Chicago is in a CSS that is not in the partition of the Chicago phones.
  B. The CSS of the Chicago phones does not include the partition of the route pattern to point to Tokyo.
  D. The Tokyo SIP trunk inbound CSS does not contain the partition of the Tokyo phones.

• Question 247:

  Your Cisco Unified CallManager 5.0 cluster has just started to use a third-party LDAP service. Users complain that they are unable to make changes to their passwords in their Cisco Unified CallManager user web pages. How should you resolve this problem?

  A. Restart the phones that are having problems to reinitialize the LDAP database.
  B. Have the users make changes to their passwords in the LDAP database.
  C. Configure automatic synchronization of the LDAP database.
  D. Change the passwords on the IP phone screen using the TUI.
  B. Have the users make changes to their passwords in the LDAP database.

• Question 248:

  Which three things in the echo log must be recorded when the voice gateway is tested for echo issues? (Choose three.)

  A. the time of the problem
  B. the location of the gateway
  C. the source phone number
  D. the dialed analyzer results
  E. the number called
  F. the dial digits from the gateway
  A. the time of the problem
  C. the source phone number
  E. the number called

• Question 249:

  Please choose the location of RAI configuration from the following options.

  A. On a gatekeeper
  B. On a gateway
  C. On both a gatekeeper and a gateway
  D. On a Cisco Unified Communications Manager server
  B. On a gateway

• Question 250:

  In a Cisco UCM multisite WAN with centralized call-processing deployment model, what redundancy feature should be configured on remote site routers to supply basic IP telephony services in the event of a WAN outage?

  A. AAR
  B. SRST
  C. CAC
  D. V3PN
  B. SRST