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Cisco 642-742 Online Practice Questions and Exam Preparation

642-742 Exam Details

  • Exam Code
    :642-742
  • Exam Name
    :Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0
  • Certification
    :Cisco Certifications
  • Vendor
    :Cisco
  • Total Questions
    :185 Q&As
  • Last Updated
    :Dec 13, 2021

Cisco 642-742 Online Questions & Answers

  • Question 141:

    What are two benefits that result from Cisco WLC configuration of DCA for 5-GHz VoWLAN deployments? (Choose two.)

    A. Avoid channels that are affected by a microwave oven
    B. Manually remove channels that are not supported by VoWLAN clients
    C. Avoid 802.11n 40-MHz channels
    D. Avoid nearby radar
    E. Adjust RRM power thresholds

  • Question 142:

    What are the results that you can expect when performing a Cisco WLC v7.0 link test on a wireless IP phone?

    A. The device must be running at least Cisco Compatible Extensions v2 or higher, for the test and results to be successful.
    B. The device must be running at least Cisco Compatible Extensions v4 or higher, for the test and results to be successful.
    C. A device that is not running a version of Cisco Compatible Extensions will show only packets that are sent and received.
    D. A device that is not running a version of Cisco Compatible Extensions will show packets that are sent, packets that are received, local signal strength, and SNR.

  • Question 143:

    A Cisco 7925 phone at a client's location is not registering with CUCM. The engineer analyzes a packet capture, sees that the phone receives an IP, and downloads the proper configuration file from TFTP successfully. What type of messages should the phone be sending at this point?

    A. H.245
    B. H.323
    C. MCGP
    D. SCCP

  • Question 144:

    What is the difference between the QoS values on the wired and wireless sides of a WLAN?

    A. The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and EF.
    B. The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and 40.
    C. The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.
    D. The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.

  • Question 145:

    A customer is deploying a few remote sites and has decided to use FlexConnect mode for the wireless access points. The customer needs to have seamless roaming for the voice clients at these sites. What two configurations need to be implemented to guarantee roaming? (Choose two)

    A. FlexConnect Groups
    B. CCKM
    C. 802.11r
    D. centrally switched SSIDs
    E. OKC/PKC

  • Question 146:

    A network engineer is viewing the QBSS information in a packet sniff. Which two QBSS characteristics are crucial for successful troubleshooting? (Choose two.)

    A. When only WMM is enabled, information element number 2 QBSS Load information element is sent out in the beacons and probe responses.
    B. When the client CAC limit is supported, information element number 1 is sent out in the beacons and probe responses on the bg radios.
    C. When the client CAC limit is supported, information element number 2 is sent out in the beacons and probe responses on the bg radios.
    D. When only WMM is enabled, information element number 1 QBSS Load information element is sent out in the beacons and probe responses.

  • Question 147:

    When implementing video teleconferencing over a wireless network, which three attributes should be considered when cell planning? (Choose three.)

    A. latency
    B. jitter
    C. throughput
    D. packet loss
    E. client association
    F. number of users on the network

  • Question 148:

    What is the best practice for configuring data rates for an 802.11a VoWLAN deployment?

    A. Configure mandatory data rates of 9 and 54 Mb/s. Disable data rates below 6 Mb/s and all other data rates as supported.
    B. Configure a mandatory data rate of 6 Mb/s. Disable data rates below 6 Mb/s and configure all other data rates as supported.
    C. Configure a mandatory data rate of 54 Mb/s. Disable data rates below 36 Mb/s and configure all other data rates as supported.
    D. Configure a mandatory data rate of 12 Mb/s. Disable data rates below 12 Mb/s and all other data rates as supported.

  • Question 149:

    A network engineer is limiting the number of voice calls on an AP. Which technology should be used?

    A. SCCP
    B. CAC
    C. SIP
    D. RTP

  • Question 150:

    Which two critical requirements must be addressed in the RF site survey for wireless video surveillance? (Choose two.)

    A. packet loss
    B. jitter
    C. bandwidth
    D. channel selection
    E. WLC configuration

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