Cisco 642-742 - Implementing Cisco unified Wireless Voice Networks (IUWVN) v2.0 Exam
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Total 188 questions
Question #11 (Topic: )
IGMP snooping has been enabled on a Cisco WLC v7.0, along with any other
configurations that are required for wireless multicast. Which statement describes an IGMP
leave message to a router when IGMP snooping is enabled?
configurations that are required for wireless multicast. Which statement describes an IGMP
leave message to a router when IGMP snooping is enabled?
A. The message is sourced from the wireless client.
B. The message is sourced from the Cisco WLC management interface.
C. The message is sourced from the Cisco WLC virtual interface.
D. The message is sourced from the Cisco WLC dynamic interface.
E. No message is sent, and the membership is timed out.
Answer: E
Question #12 (Topic: )
A customer requests that wireless infrastructure is able to support video over wireless for
streaming corporate informational videos for new-hire employees. What two minimum
requirements should be met when laying out the guidelines to support video streaming?
(Choose two.)
streaming corporate informational videos for new-hire employees. What two minimum
requirements should be met when laying out the guidelines to support video streaming?
(Choose two.)
A. acceptable delay for video should not exceed 4 to 5 seconds
B. acceptable delay for video should not exceed 150ms
C. loss rate should not exceed 1%
D. the loss rate should not exceed 5%
E. acceptable delay for video should not exceed 9 to 10 seconds
F. no loss should occur
Answer: A,D
Question #13 (Topic: )
Which of these statements best describes the Cisco Compatible Extensions "AP Specified
Max Power" feature?
Max Power" feature?
A. The Cisco Compatible Extensions-capable client sets its power independently and confirms with the AP if its setting is supported.
B. After a Cisco Compatible Extensions client associates to an AP, that AP will inform the other surrounding APs what power settings that client supports in case it roams to another AP.
C. The AP automatically sets the transmit power of each of its Cisco Compatible Extensions-capable clients.
D. The AP automatically sets the transmit and receive power of each of its Cisco Compatible Extensions-capable clients.
Answer: C
Question #14 (Topic: )
[Cisco-642-742-10.0/Cisco-642-742-7_2.png]
Refer to the exhibit. A network engineer is troubleshooting wireless voice issues on a
network using EAP-FAST with PAC provisioning. Authentication is working properly on
laptops but is failing on phones. What configuration change is needed?
Refer to the exhibit. A network engineer is troubleshooting wireless voice issues on a
network using EAP-FAST with PAC provisioning. Authentication is working properly on
laptops but is failing on phones. What configuration change is needed?
A. Identity Request Timeout to 60
B. Identity Request Timeout to 10
C. Request Timeout to 5
D. Request Timeout to 30
E. EAPOL-Key Max Retries to 1
F. EAPOL-Key Max Retries to 5
Answer: D
Question #15 (Topic: )
VoIP clients can be impacted by jitter. Which of these statements best describes jitter?
A. Jitter occurs because the receiver buffer is smaller than the sender buffer, thus packets are dropped and voice quality becomes worse.
B. Jitter is defined as variation in the delay of received packets.
C. Jitter can be reduced by designing cells that use only the 802.11a frequency band.
D. A best practice to avoid jitter is to ensure that the end-to-end round-trip time does not exceed 150 ms.
Answer: B
