Cisco 642-427 Online Practice Questions and Exam Preparation

Cisco 642-427 Online Questions & Answers

• Question 191:

  Phone calls have been successful with acceptable audio quality over a WAN link. Recent configuration changes in the WAN routers have resulted in the inability to hear any audio on new calls across the WAN. Which configuration changes directly cause a loss of audio?

  A. a WAN router access list that blocks all UDP ports greater than 10,000
  B. a WAN router access list that blocks all UDP ports lesser than 10,000
  C. a WAN router access list that blocks all TCP ports greater than 10,000
  D. a WAN router access list that blocks all TCP ports lesser than 10,000
  A. a WAN router access list that blocks all UDP ports greater than 10,000

• Question 192:

  Your Cisco Unified CallManager 5.0 cluster is using your corporate Windows 2003 Active Directory for user information. Over the weekend you updated the Windows 2003 Active Directory Server and added a small group of new users. Cisco Unified CallManager is configured to synchronize with the Active Directory server every 8 hours and it has been 32 hours since the last successful synchronization. The configuration on Cisco Unified CallManager did not change during the Active Directory server upgrade and the remainder of the Windows network is functioning properly.

  What are two possible causes of this synchronization issue? (Choose two.)

  A. The synchronization on the AD server was set to manual.
  B. The domain controllers are down.
  C. There is a username and or password mismatch between the Cisco Unified CallManager cluster and the Windows AD server.
  D. Authorization has not been configured for a third party LDAP service.
  E. The LMHOSTS file has been corrupted.
  B. The domain controllers are down.
  C. There is a username and or password mismatch between the Cisco Unified CallManager cluster and the Windows AD server.

• Question 193:

  Refer to the exhibit.

  

  When a Cisco Unified Communications Manager Express advertises the directory number pattern in the exhibit, what would the learned pattern be in the RTMT tool on the Cisco Unified Communications Manager?

  A. 4XXX and the ToDID will be 0:+1972555
  B. 4XXX and the ToDID will be 0:+19725554XXX C. 4XXX and the ToDID will be 0:19725554XXX
  D. 4XXX and the ToDID will be 0:1972555
  E. 19725554XXX and the ToDID will be 0:+1972555
  D. 4XXX and the ToDID will be 0:1972555

• Question 194:

  Your company has a centralized IP Telephony system and branch offices in eight major cities. The manager of your company help desk recently published local access numbers for external customers to reduce the costs associated with your company's toll-free 800 service. However, when customers call the new local numbers they hear a reorder tone instead of your centralized IVR.

  What is the best solution to this issue?

  A. Deploy transcoders at each remote location.
  B. Deploy transcoders at the central location.
  C. Deploy Cisco Unified IP IVRs at each remote location.
  D. Increase the number of ports in the centralized IVR.
  B. Deploy transcoders at the central location.

• Question 195:

  Which device provides information to troubleshoot offnet calls?

  A. performance monitor
  B. Cisco Unity Connections server
  C. Cisco Unified Contact Center Express server
  D. voice gateway
  D. voice gateway

• Question 196:

  Refer to the exhibit.

  

  The output of the show call active voice command shows an ERL level of 25. Which statement about the ERL is true?

  A. The ERL level is the absolute sum of OutSignalLevel and InSignalLevel, which equals 30. The DSP has an error margin of 5 dB.
  B. ERL 25 shows how much echo cancellation has been performed by the echo canceller in the router.
  C. The ERL value of 25 is not valid and hence should be ignored; however, the echo canceller is being organized.
  D. The correct ERL could not be calculated by the echo canceller. The signal is being reflected with 0 dB loss.
  D. The correct ERL could not be calculated by the echo canceller. The signal is being reflected with 0 dB loss.

• Question 197:

  Look at the following options carefully. Which two tasks are performed by the RAS signaling function of H.225.0? (Select two.)

  A. Performs bandwidth changes.
  B. Transports audio messages between endpoints.
  C. Performs disengage procedures between endpoints and a gatekeeper.
  D. Allows endpoints to create connections between call agents.
  A. Performs bandwidth changes.
  C. Performs disengage procedures between endpoints and a gatekeeper.

• Question 198:

  Acme Corporation has Cisco IP Phones configured in a single-site Cisco Unified Communications Manager cluster. The 10 phones in the accounting department can call each other. Another 10 phones in the finance department can call each other. However, no phones in accounting can call the phones in finance.

  Which change is needed to allow all accounting phones to call all finance phones?

  A. Ensure that all phones use SIP signaling.
  B. Ensure that all phones use SCCP signaling.
  C. Ensure that all phones are the same Cisco IP Phone model.
  D. Ensure that all accounting phones are in a CSS that contains the partition that includes the finance phones.
  E. Ensure that all finance phones are in a CSS that is in a partition that includes the accounting phones.
  D. Ensure that all accounting phones are in a CSS that contains the partition that includes the finance phones.

• Question 199:

  Refer to the exhibit.

  

  Which Cisco Unified Communications Manager trace file level should be selected when enabling traces to send to Cisco TAC for analysis?

  A. State Transition
  B. Arbitrary
  C. Significant
  D. Error
  E. Detailed
  F. Special
  E. Detailed

• Question 200:

  You have been advised by a TAC engineer to update the firmware of your Cisco IP Phones in your Cisco Unified Communications Manager cluster. You must update just one test phone initially in production to test the new firmware before you update the other production phones.

  Which action allows this process without any down time to the other production phones?

  A. Modify the DHCP server to make a new scope that includes only the new test phone.
  B. Initialize a separate Cisco Unified Communications Manager Express device and use the built-in TFTP server to update the test phone with the same firmware on the Cisco Unified CM cluster.
  C. Initialize a TFTP server outside the Cisco Unified CM cluster to replicate the new firmware from the Cisco Unified CM cluster to the test phone.
  D. Install the new firmware in the TFTP server, keep the current load in the device defaults, and modify the phone load name in the phone configuration to use the recommended firmware version.
  D. Install the new firmware in the TFTP server, keep the current load in the device defaults, and modify the phone load name in the phone configuration to use the recommended firmware version.