Ensurepass

QUESTION 71

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

 

Correct Answer: B

 

 

QUESTION 72

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

 

A.

Configure mandatory data rates of 12 and 54 Mb/s. Disable data rates below 6 Mb/s, and configure 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 11 Mb/s. Disable data rates below 11 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 configure all other data rates as supported.

 

Correct Answer: D

 

 

 

 

QUESTION 73

You are getting complaints from Cisco Unified Wireless IP Phone 7925 users that their phones are failing to register with the Cisco Unified Communications Manager Express server and are showing the message “Registering.” What is the problem?

 

A.

The IP phones are failing to receive a DHCP address from the DHCP server.

B.

There is no ephone configuration for each phone in the Cisco Unified CME device.

C.

The IP phones are failing to receive their firmware files from the TFTP server.

D.

The DHCP server needs to include the command option 66 ip <ip address> to serve the appropriate load file.

 

Correct Answer: C

 

 

QUESTION 74

What three minimal configurations are required for a correctly scaled multicast configuration using WLC v7.0? (Choose three.)

 

A.

Enable global multicast mode

B.

Enable IGMP snooping

C.

Configure IGMP timeout for 60 seconds

D.

Configure IGMP query interval for 20 seconds

E.

Enable WLAN multicast VLAN feature

F.

Enable AP multicast mode for multicast

G.

Enable AP multicast mode for Unicast

 

Correct Answer: ABF

 

 

QUESTION 75

What is the minimum overhead (header plus FCS) added by 802.11 (no encryption, no WMM) between a wireless client and an AP?

 

A.

18 B

B.

24 B

C.

28 B

D.

35 B

E.

36 B

F.

48 B

 

Correct Answer: C

 

 

QUESTION 76

WLC v7.0 is configured for multicast with WLC-to-AP multicast mode, using IP address 239.10.10.10 and IGMP snooping enabled, with all other parameters set to default. What QoS value is given to multicast traffic between a WLC and APs?

 

A.

CS6

B.

EF

C.

CS5

D.

CS4

E.

CS3

F.

CS2

G.

CS1

H.

BE

 

Correct Answer: H

 

 

QUESTION 77

A Cisco WLC v7.0 is configured with the default setting for wired and wireless QoS. When a wireless client sends a voice packet to the AP, how does the AP mark the outer CAPWAP header when the packet is sent to the Cisco WLC v7.0?

 

A.

The AP uses the wireless priority value to create a matching 802.1p value in the CAPWAP header.

B.

The AP uses the wireless priority value to create a matching DSCP value in the CAPWAP header.

C.

The AP uses the wireless priority value to create both a matching 802.1p and DSCP value in the CAPWAP header.

D.

The AP does not match the value to the CAPWAP header, which results in best effort.

 

Correct Answer: D

 

 

QUESTION 78

A network engineer is configuring CAC on a WLC. If CAC is configured with 85% of the total radio bandwidth on a 5-GHz radio, how many clients can be accommodated?

 

A.

5

B.

12

C.

15

D.

22

 

Correct Answer: D

 

 

QUESTION 79

An engineer is studying the TSM for a VoWLAN user experiencing issues using a CCXv3 device. What two items will be shown? (Choose two.)

 

A.

uplink packet latency

B.

uplink packet loss

C.

downlink packet latency

D.

downlink packet loss

E.

uplink MOS score

F.

downlink MOS score

 

Correct Answer: CD

 

 

QUESTION 80


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

 

Correct Answer: BD

 

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