Cisco 642-731 Online Practice Questions and Exam Preparation

Cisco 642-731 Online Questions & Answers

• Question 1:

  During RF verification, some 5 GHz clients are unable to connect to certain APs, while other 5 GHz clients can connect to all APs. What may prevent some clients from connecting?

  A. some clients may not support the UNII-2 Extended band
  B. some clients may not support OFDM modulation
  C. some clients may not support TPCv2
  D. some clients may not support CCXv5
  A. some clients may not support the UNII-2 Extended band

• Question 2:

  When using WCS 7.0 to calibrate a floor, is it more important to collect 50 or more distinct locations or to collect 150+ measurements?

  A. 150+ measurements are more important than the locations because the information gathered is more granular.
  B. Collecting 50 or more distinct locations is more important because this provides a wider coverage across the floor being calibrated.
  C. Depending on the size of the floor 50+ distinct locations and 150+ measurements may provide divergent information that requires more data collection.
  D. When calibrating a floor 50 or more distinct locations will yield 150+ measurements because multiple measurements are collected at each distinct location.
  D. When calibrating a floor 50 or more distinct locations will yield 150+ measurements because multiple measurements are collected at each distinct location.

• Question 3:

  An engineer installed a 1252 AP and is getting power from the switch. However, devices connected to the wireless network cannot get 802.11n data rates. What supported switchport protocol or standard could be the reason for this?

  A. 802.3af
  B. 802.3at
  C. 802.1p
  D. 802.11e
  A. 802.3af

• Question 4:

  Which two pieces of physical infrastructure information should be included in the installation report presented to the customer? (Choose two.)

  A. A list of router and switch models, serial numbers and locations.
  B. The total square footage of the customer's facility.
  C. An analysis of the facility exterior wall and roof construction materials.
  D. The cable scan results for the entire customer facility.
  E. An installation inventory of all controllers and APs in the WLAN coverage area.
  D. The cable scan results for the entire customer facility.
  E. An installation inventory of all controllers and APs in the WLAN coverage area.

• Question 5:

  You have been asked to evaluate a new version 7.0 controller-based WLAN deployment. The customer wants to increase the number of indoor tags their network supports. How do you explain to the customer how wireless clients and RFID tags are licensed in the MSE?

  A. There is a 2:1 relationship between the number of clients and RFID tags that can be supported in the MSE.
  B. The number of clients and RFID tags are independent of each other and have separate license bases.
  C. There is a 3:1 relationship between the number of clients and RFID tags that can be supported in the MSE.
  D. The relationship between clients and RFID tags is balanced. So if you have more clients you have fewer RFID tags.
  E. RFID and wireless clients require separate dedicated MSE appliances.
  D. The relationship between clients and RFID tags is balanced. So if you have more clients you have fewer RFID tags.

• Question 6:

  Which regulation is OSHA responsible for enforcing?

  A. safety and health regulations
  B. fire and other hazard regulations
  C. electrical and wiring regulations
  D. radio communication regulations
  A. safety and health regulations

• Question 7:

  DRAG DROP

  Select and Place:

  

  

• Question 8:

  When performing a post-installation audit using the Ekahau Survey tool, which four steps are associated with the passive portion of the audit? (Choose four.)

  A. Check that all channels are supported by the APs regardless of client capabilities.
  B. Check for co-channel interference by standing near an access point on one channel and watching for other access points that are on the same channel.
  C. Verify that the real-world network traffic (for example, physical data rate, packet loss, etc.) meets user requirements.
  D. When you have completed the post-installation surveys, compare them to the surveys that were performed before the installation. They should look nearly identical.
  E. Check to see if the signal levels on other access points that are heard on the same channel are at least 19 dBm weaker than the access point that you are next to.
  F. Survey by SSID to ensure that smooth roaming is taking place.
  A. Check that all channels are supported by the APs regardless of client capabilities.
  B. Check for co-channel interference by standing near an access point on one channel and watching for other access points that are on the same channel.
  D. When you have completed the post-installation surveys, compare them to the surveys that were performed before the installation. They should look nearly identical.
  E. Check to see if the signal levels on other access points that are heard on the same channel are at least 19 dBm weaker than the access point that you are next to.

• Question 9:

  In performing a post-deployment audit, you are concerned by significant changes in measured RSSI and SNR values taken on a wireless client in one location. How do you explain the differences in these values?

  A. The differences in the RSSI and SNR values are a result of signal diffusion in the environment.
  B. The differences in the RSSI and SNR values are a result of multipath in the environment.
  C. The differences in the RSSI and SNR values are a result of signal absorption in the environment.
  D. The differences in the RSSI and SNR values are a result of signal diffraction in the environment.
  B. The differences in the RSSI and SNR values are a result of multipath in the environment.

• Question 10:

  You have a client that would like to upgrade their 2.4-GHz point-to-point wireless bridge link between buildings in their facility in Mexico. Currently, they have radios from vendor A that are transmitting at 14 dBm with 6 dBm antennas. They would like to upgrade the radios to vendor B but keep the existing antennas. The new radios from vendor B have a fixed transmit power of 7 dBm. How should you proceed?

  A. Install the new radios with existing vendor A antennas.
  B. Install new radios with replacement vendor A antennas rated at 13 dBm.
  C. Install new radios with replacement vendor A antennas rated at 30 dBm.
  D. Install the new radios with new vendor B antennas rated at 29 dBm.
  E. Install the new radios with new vendor B antennas rated at 13 dBm.
  E. Install the new radios with new vendor B antennas rated at 13 dBm.