Ensurepass

QUESTION 81

A corporation has a Cisco Unified Wireless Network that has been deployed for voice coverage. The wireless data rates have been tuned to mandatory rates of 18 Mbps and 36 Mbps. Some wireless clients have been experiencing drops streaming multicast video while moving throughout the building. What is the cause of the drop in video?

 

A.

Clients are maintaining a 12Mbps rate and cannot receive the stream at 18Mbps.

B.

Clients are not roaming due to coverage. This is causing the multicast data to drop due to the client re-associating often.

C.

Clients are roaming at lower data rates and are not maintaining 36Mbps connectivity.

D.

Clients are connected at 18Mbps; however, other clients are connecting at 12Mbps and are causing the multicast video to degrade.

 

Correct Answer: C

 

 

QUESTION 82

A customer has requested help in configuring priority for emergency calls. What setting needs to be enabled to allow for wireless phones to make emergency calls no matter the load on the access point?

 

A.

expedited bandwidth

B.

reserved roaming bandwidth reservation

C.

static CAC reservation

D.

SIP CAC

 

Correct Answer: A

 

 

QUESTION 83

Refer to the exhibit. An engineer has performed a debug on wireless voice. Which four conditions can be determined from the information that was gathered? (Choose four.)

 

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A.

LBCAC is configured.

B.

Static CAC is configured.

C.

More than 1076 medium times remain.

D.

Less than 1076 medium times remain.

E.

The total number of calls allowed on the VoWLAN is 10.

F.

The total number of calls allowed on the VoWLAN is 15

G.

Increasing the maximum RF bandwidth in the wireless LAN controller could resolve this issue.

H.

Increasing the reserved roaming bandwidth in the wireless LAN controller could resolve this issue.

 

Correct Answer: BDEG

 

 

QUESTION 84

How would an engineer ensure that a wireless client can conduct traffic admission?

 

A.

verify interface group is configured for traffic admission

B.

verify client supports WME for traffic admission

C.

verify traffic is admitted as it passes down the OSI layers

D.

verify traffic is admitted by round robin

 

Correct Answer: B

 

 

QUESTION 85

The customer has deployed C7260 phones with clients connected to them. What switch feature could be enabled to distinguish IP voice traffic from client data traffic?

 

A.

QBSS

B.

WME

C.

QoS routing

D.

Weighted Queuing

E.

Voice VLAN

 

Correct Answer: E

 

 

QUESTION 86

Which three statements are true about load-based Call Admission Control? (Choose three.)

 

A.

grants a VoWLAN client-initiated call based on the number of active clients associated to the AP

B.

grants a VoWLAN client-initiated call based on channel bandwidth capacity

C.

uses the 802.11i specifications

D.

uses ADDTS action frames

E.

requires a WMM-enabled client

 

Correct Answer: BDE

 

 

QUESTION 87

Which two Cisco components are required to extend an existing VoWLAN to dual-mode wireless phones? (Choose two.)

 

A.

An LDAP server for the WLAN

B.

Cisco Unified Mobile Communicator

C.

Cisco Unified Mobility Advantage client

D.

Cisco Unified Mobility Advantage

E.

Cisco Unified Communications Manager

F.

A RADIUS server for the WLAN

 

Correct Answer: BD

 

 

QUESTION 88

A customer has requested their wireless infrastructure to be able to provide voice phones with the ability to indicate to a wireless controller that the call is urgent and needs to be placed immediately. What solution should be recommended to the customer?

 

A.

enable load-based CAC for voice networks and configure expedited bandwidth

B.

disable load-based CAC for voice networks to turn off the controllers monitoring of the access point’s load, allowing for as many voice calls to be placed as necessary

C.

configure expedited bandwidth and change the 802.1p value to 7 for platinum QoS

D.

reconfigure the SSID for KTS based CAC to allow for a more granular handling of voice traffic

 

Correct Answer: A

 

 

QUESTION 89

What is the main difference between the Cisco Unified Wireless IP Phone 7921G and the Cisco Unified Wireless IP Phone 7925G?

 

A.

The 7925G supports 802.11a/b/g, whereas the 7921G supports only 802.11b/g.

B.

The 7925G is suited for a more rugged environment.

C.

The 7925G has support for 802.11n, whereas the 7921G does not.

D.

7925G supports WPA2, whereas the 7921G supports only WPA1.

 

Correct Answer: B

 

 

QUESTION 90

A VoWLAN site survey was performed and equipment installed based on recommended design guidelines. Which two statements describe reasons to perform a post-deployment survey? (Choose two.)

 

A.

There is insufficient information about the number of people in the area when the survey is performed.

B.

There is insufficient information by AirMagnet VoFi Analyzer.

C.

There are elevator shafts.

D.

There are roaming pathways.

E.

There are changes in temperature in the indoor environment.

 

Correct Answer: AD

 

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