[Free] 2017(Oct) EnsurePass Testking Cisco 642-742 Dumps with VCE and PDF 71-80

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2017 Oct Cisco Official New Released 642-742
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Implementing Cisco unified Wireless Voice Networks (IUWVN) v2.0

Question No: 71

What is the difference between the QoS values on the wired and wireless sides of a WLAN?

  1. The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and EF.

  2. The wireless side of the network uses WMM, which carries voice in the Platinum queue with a CoS of 7. The wired side of the network uses CoS/DSCP values of 5 and 40.

  3. The wireless side of the network uses WMM, which carries voice in the Gold queue with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.

  4. The wireless side of the network uses WMM, which carries voice in the Platinum queue

with a CoS of 6. The wired side of the network uses CoS/DSCP values of 5 and EF.

Answer: D

Question No: 72

What are the benefits from enabling TSM for a VoWLAN using a WLC v7.0?

  1. provides packet loss and latency covering the end-to-end voice path on all links

  2. provides packet loss and latency covering the end-to-end voice path on all links and additional parameters on the VoWLAN segment

  3. provides packet loss covering the end-to-end voice path on all links and additional parameters on VoWLAN segment

  4. provides packet loss, latency, and additional parameters on VoWLAN call segment

Answer: D

Question No: 73

IGMP snooping has been enabled on a Cisco WLC v7.0, along with any other configurations that are required for wireless multicast. After a wireless client has joined a multicast group, which IP address is listed by the router as the source reporter for that multicast group?

  1. first wireless client to join

  2. last wireless client to join

  3. Cisco WLC AP management interface address

  4. Cisco WLC management interface address

  5. Cisco WLC virtual interface address

  6. Cisco WLC dynamic interface address

Answer: F

Question No: 74

Users are experiencing poor voice quality on a new VoWLAN. Which feature can be used to isolate the issue?

  1. CAC

  2. TSPEC

  3. TSM

  4. U-APSD

  5. EDCA

Answer: C

Question No: 75

Which four statements describe attributes of interactive video? (Choose four.)

  1. Packet loss is limited to 1 percent.

  2. Packet loss is limited to 5 percent.

  3. One-way latency is limited to 150 ms.

  4. One-way latency is limited to a few seconds.

  5. Jitter is limited to 30 ms.

  6. Jitter has no significant requirements.

  7. QoS marking is at CS4.

  8. QoS marking is at AF41.

Answer: A,C,E,H

Question No: 76

Ensurepass 2017 PDF and VCE

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.)

  1. Radar interference

  2. Bluetooth interference

  3. microwave oven interference

  4. DECT 6.0 Cordless phone interference

  5. Disable UNII-2 channels

  6. Disable DFS

  7. Disable DCA

  8. Disable RRM

Answer: A,E

Question No: 77

Which three call information items does AirMagnet VoFi Analyzer provide? (Choose three.)

  1. the codec used by the calling phone

  2. approximate length of the call in minutes

  3. MOS values throughout the duration of the call

  4. 802.11e access category overruns

  5. co-channel interference percentage during the call

Answer: A,B,C

Question No: 78

Which two security technologies should be used when deploying a 100 Wi-Fi phone installation? (Choose two.)

  1. Use WPA-PSK.

  2. Use IEEE 802.1X with unique users on each phone.

  3. Use the same IEEE 802.1X username on all phones.

  4. Use IEEE 802.1X and WEP 128.

  5. Use IEEE 802.1X and WEP 256.

  6. Use IEEE 802.1X and WPA2 and Cisco Centralized Key Management.

Answer: B,F

Question No: 79

A Cisco WLC v7.0 is properly configured for 802.11n and multicasting video without the optional Cisco VideoStream. Which three options best describe the frames that are sent from the AP to the wireless clients? (Choose three.)

  1. unicast to subscribed clients

  2. multicast to subscribed clients

  3. After startup, throughput is consistent.

  4. After startup, throughput can vary over time.

  5. retransmission upon failure of delivery

  6. no retransmission

Answer: B,D,F

Question No: 80

A customer has configured a wireless LAN controller and set the 802.11a/n data rates. All rates are enabled where 5.5 Mbps, 11 Mbps, and 24 Mbps are set to Mandatory. What will APs send over the 24 Mbps data rate?

  1. channel announcements

  2. beacons

  3. DTPC support

  4. multicast broadcast

Answer: D

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