642-742試験無料問題集（190題）「Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 認定」

出題：1

A client is WME capable and configured for AC_VOICE, but the QoS Priority of 6 is missing when analyzing an 802.11 frame. What three issues need to be investigated? (Choose three.)

A. WMM IE present in beacons

B. WLAN is WMM enabled

C. WMM IE present in association response

D. WLAN is configured for Platinum QoS

E. DTIM is set to 10

F. WMM IE present in association requests

正解：A,B,C 解答を投票する

出題：2

A network engineer observes a spike in controller CPU overhead and overall network utilization after enabling multicast on a controller with 500 APs. What feature is necessary to correct the issue?

A. controller IGMP snooping

B. multicast AP Multicast Mode

C. unicast AP Multicast Mode

D. broadcast forwarding

正解：B 解答を投票する

出題：3

DSCP and 802.1p belong to which two layers of the OSI model? (Choose two.)

A. Layer 7

B. Layer 6

C. Layer 4

D. Layer 3

E. Layer 1

F. Layer 2

G. Layer 5

正解：D,F 解答を投票する

出題：4

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. 3 Hops Max

B. outdoor Mesh

C. indoor Mesh

D. 5 MAPs per RAP Max

E. 3 MAPs per RAP Max

F. 4 Hops Max

正解：C,E 解答を投票する

出題：5

Which four hardware components are required to make an end-to-end unified wireless VoIP solution? (Choose four.)

A. WLAN controller

B. Cisco Unified Communications Manager

C. CAPWAP access points

D. Cisco Wireless Control System

E. autonomous access points

F. firewalls

G. wireless IP phone

H. Cisco Mobility Services Engine server

正解：A,B,C,G 解答を投票する

出題：6

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 reserved roaming bandwidth setting is set too low.

B. EDCA needs to be enabled on the WLAN.

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

D. The expedited bandwidth setting needs to be enabled.

E. HCCA needs to be enabled on the WLAN.

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

正解：C 解答を投票する

出題：7

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

A. 28 B

B. 48 B

C. 24 B

D. 36 B

E. 18 B

F. 35 B

正解：A 解答を投票する

出題：8

Which two statements are correct if IGMP snooping is enabled on a Cisco WLC v7.0? (Choose two.)

A. The IGMP packets from the wireless clients are received at the Cisco WLC, which generates a query for the client.

B. The router IGMP table is updated with the IP address of the wireless clients as the last reporter.

C. The router IGMP table is updated with the IP address of the Cisco WLC as the last reporter.

D. The IGMP packets from the wireless clients are received at the WLC and are used to update the router via a Cisco Group Management Protocol update from the Cisco WLC.

E. The IGMP packets from the wireless clients are forwarded to the router without modifications.

正解：A,C 解答を投票する

出題：9

Refer to the exhibit.

An engineer notices VoWLAN calls getting dropped and uses Spectrum Expert to analyze the RF utilization. Based on the Spectrum Expert capture, what two options describe the interferer and how to mitigate it? (Choose two.)

A. Disable DCA

B. Disable DFS

C. microwave oven interference

D. Disable UNII-2 channels

E. DECT 6.0 Cordless phone interference

F. Disable RRM

G. Radar interference

H. Bluetooth interference

正解：D,G 解答を投票する

出題：10

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. Weighted Queuing

B. Voice VLAN

C. QBSS

D. QoS routing

E. WME

正解：B 解答を投票する

642-742試験無料問題集「Cisco Implementing Cisco Unified Wireless Voice Networks (IUWVN) v2.0 認定」