Ensurepass

QUESTION 121

Which two options allow a Cisco Unified Wireless IP Phone 7925G to conserve its battery? (Choose two.)

 

A.

PS-Poll

B.

S-APSD

C.

U-APSD

D.

802.11h

E.

802.11r

 

Correct Answer: AC

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QUESTION 122

Which DHCP option is used by Vocera badges to reach a Cisco Unified Communications Manager?

 

A.

Set the option to 66.

B.

Set the option to 43.

C.

Set the option to 150.

D.

No option is required.

 

Correct Answer: D

 

 

QUESTION 123

A customer has asked an engineer to design wireless voice for a Mesh deployment. What two design options are best practices per Cisco’s design guide? (Choose two.)

 

A.

indoor Mesh

B.

outdoor Mesh

C.

3 Hops Max

D.

4 Hops Max

E.

3 MAPs per RAP Max

F.

5 MAPs per RAP Max

 

Correct Answer: AE

 

 

QUESTION 124

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

 

Correct Answer: ABD

 

 

QUESTION 125

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.

 

Correct Answer: AB

 

 

QUESTION 126

Which of these statements best describes the Cisco Compatible Extensions “AP Specified 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.

 

Correct Answer: C

 

 

QUESTION 127

An engineer finishes configuring a voice over wireless deployment. However, during the testing phase, the 7925 series phones are not able to complete calls and display Network Busy. CAC has been configured for the wireless system. What action should the engineer take next to troubleshoot the issue?

 

A.

ensure the lowest data rate is 12Mbps and set to Mandatory, and verify there is enough allocated bandwidth to support voice calls

B.

check that the lowest data rate is 5.5Mbps to support TSPEC, and verify that the SSID is set to Platinum

C.

modify the SIP CAC Access Control List on the controller to permit voice traffic for 7925 phones

D.

turn off traffic stream metrics

 

Correct Answer: A

 

 

QUESTION 128

When verifying a voice survey with a Cisco 7925G phone in site survey mode, what information can be found in the CU field?

 

A.

Channel Utilization

B.

Connected Users

C.

Channel Used

D.

Channel Unavailable

E.

Concurrent Users

F.

CUCM Users

 

Correct Answer: A

 

 

QUESTION 129

Which two multicast modes are valid for use with Ethernet bridging on a mesh AP? (Choose two.)

 

A.

mesh bridge in

B.

regular

C.

bidirectional bridge

D.

in

E.

out

 

Correct Answer: BD

 

 

QUESTION 130

You have a VoWLAN configured for platinum QoS, WMM, and CAC. IP phones for this VoWLAN include the Nokia and Cisco Unified Wireless IP Phones 7920G (pre-v2.0 firmware), 7921G, and 7925G. The Wireless IP Phones 7921G and 7925G work properly, but the Nokia and the Wireless IP Phones 7920G associate with the WLAN but cannot place calls. What is the issue?

 

A.

The lowest mandatory speed in the WLAN is too high and needs to be reduced.

B.

The Cisco Unified Wireless IP Phones 7920G and Nokia IP phones do not support TSPEC.

C.

EDCA needs to be enabled on the WLAN.

D.

HCCA needs to be enabled on the WLAN.

E.

The reserved roaming bandwidth setting is set too low.

F.

The expedited bandwidth setting needs to be enabled.

 

Correct Answer: B

 

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