Cisco 642-742 Online Practice Questions and Exam Preparation

Cisco 642-742 Online Questions & Answers

• Question 101:

  Which statement is correct for the LWAPP/CAPWAP AP upstream encapsulated frame for a WMM- associated client frame that is centrally switched running v5.2?

  A. Wireless client WMM UP classification is translated to a wired DSCP priority.
  B. Wireless client 802.11p classification is translated to a wired DSCP priority.
  C. Wireless client WMM UP classification is translated to a wired 802.1p CoS priority.
  D. Wireless client 802.11p classification is translated to a wired 802.1p CoS priority.
  A. Wireless client WMM UP classification is translated to a wired DSCP priority.

• Question 102:

  Which mechanism detects if VoWLAN clients are experiencing poor signal-to-noise ratio values and causes the power of APs to increase as needed in order to rectify signal-to-noise issues?

  A. CCA
  B. RSSI
  C. 802.11h
  D. CHD
  E. QBSS
  D. CHD

• Question 103:

  DRAG DROP

  Select and Place:

  

  

• Question 104:

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

  A. Layer 1
  B. Layer 2
  C. Layer 3
  D. Layer 4
  E. Layer 5
  F. Layer 6
  G. Layer 7
  B. Layer 2
  C. Layer 3

• Question 105:

  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
  D. 22

• Question 106:

  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. Radar interference
  B. Bluetooth interference
  C. microwave oven interference
  D. DECT 6.0 Cordless phone interference
  E. Disable UNII-2 channels
  F. Disable DFS
  G. Disable DCA
  H. Disable RRM
  A. Radar interference
  E. Disable UNII-2 channels

• Question 107:

  A network engineer wants the DSCP marking to align with the 802.11e access category video. What will this marking be?

  A. 4
  B. 34
  C. 5
  D. AF31
  B. 34

• Question 108:

  After implementing mesh with an IP surveillance camera connected to the LAN port on a RAP, the engineer notices that QoS is not being marked. In this setup, what device is responsible for marking upstream traffic from the camera?

  A. IP Camera
  B. MAP
  C. RAP
  D. Wireless Controller
  E. First-Hop Router
  A. IP Camera

• Question 109:

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

• Question 110:

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

  A. Cisco Mobility Services Engine server
  B. wireless IP phone
  C. firewalls
  D. CAPWAP access points
  E. Cisco Wireless Control System
  F. WLAN controller
  G. autonomous access points
  H. Cisco Unified Communications Manager
  B. wireless IP phone
  D. CAPWAP access points
  F. WLAN controller
  H. Cisco Unified Communications Manager