Cisco 640-722 Online Practice Questions and Exam Preparation

Cisco 640-722 Online Questions & Answers

• Question 261:

  A Cisco WCS administrator has marked an alarm as acknowledged. For how many days does Cisco WCS prevent the alarm from reappearing, even if the source of the alarm reoccurs?

  A. 1
  B. 7
  C. 10
  D. 30
  B. 7

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  WCS automatically deletes cleared alerts that are more than seven days old; therefore, your results can show activity only for the last seven days. Until an existing alarm is deleted, a new alarm cannot be generated for any managed entity for which WCS has already generated an alarm.

  Reference: http://www.cisco.com/c/en/us/td/docs/wireless/wcs/7-0/configuration/guide/WCS70cg/7_0event.pdf

• Question 262:

  Which Cisco AnyConnect module provides wireless connectivity?

  A. telemetry
  B. web security
  C. VPN
  D. NAM
  E. DART
  F. posture
  G. CSSC
  D. NAM

  ---

  The Cisco AnyConnect Secure Mobility Client is a multifunctional and modular security client. It was built to enable you to use the same interface across various hardware and software platforms (operating systems) to manage and secure your connections to the network. It contains several modules:

  

  VPN Module

  

  Diagnostic Reporting Tool (DART, to analyze and troubleshoot connections)

  

  Network Access Module (provided as part of the Network Access Manager to manage user and device identity over wired and wireless deployments)

  

  Posture Module (to identify the operating system, antivirus, anti-spyware, and firewall installed on the host)

  

  Telemetry (used with the Cisco IronPort Web Security Appliance to identify the source of malwares)

  

  Web Security Module (cloud-based real-time web protection and policy enforcement) You can just install the modules you need, then add or remove modules as the security needs change.

  Reference: CCNA Wireless (640-722 IUWNE) Quick Reference Guide page 73

• Question 263:

  The Cisco WCS administrator wants to create an accurate RF heat map based on RF prediction data. Which statement about map creation in Cisco WCS is true?

  A. The administrator must manually add walls, doors, and windows to the map.
  B. Cisco WCS automatically detects walls, doors, and windows and adds them to the map, but only when Cisco WCS Navigator is available.
  C. Cisco WCS automatically detects walls, doors, and windows and adds them to the map, but only when a Cisco 3300 Series MSE is available.
  D. All walls, doors, and windows must be included in the file that is uploaded as a background map.
  A. The administrator must manually add walls, doors, and windows to the map.

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  General Notes and Guidelines for Using the Map Editor

  Consider the following when modifying a building or floor map using the map editor.

  Cisco recommends that you use the map editor to draw walls and other obstacles rather than importing an .FPE file from the legacy floor plan editor.

  –If necessary, you can still import .FPE files. To do so, navigate to the desired floor area, choose Edit Floor Area from the Select a command drop-down list, click Go, select the FPE File check box, and browse to and choose the .FPE file.

  You can add any number of walls to a floor plan with the map editor; however, the processing power and memory of a client workstation may limit the refresh and rendering aspects of WCS.

  –Cisco recommends a practical limit of 400 walls per floor for machines with 1-GB RAM or less.

  All walls are used by WCS when generating RF coverage heatmaps.

  –However, the MSEs use no more than 50 heavy walls in its calculations, and the MSE does not use light walls in its calculations because those attenuations are already accounted for during the calibration process.

  If you have a high resolution image (near 12 megapixels), you may need to scale down the image resolution with an image editing software prior to using map editor.

  Reference: http://www.cisco.com/c/en/us/td/docs/wireless/wcs/7-0/configuration/guide/WCS70cg/7_0maps.html

• Question 264:

  When the pre-shared key authentication method is used for WPA or WPA2, for which two functions is the pre-shared key used? (Choose two.)

  A. to act as the Group Transient Key during the bidirectional handshake
  B. to act as the Pairwise Master Key during the bidirectional handshake
  C. to derive the nonce at each side of the exchange
  D. to derive the Pairwise Transient Key
  B. to act as the Pairwise Master Key during the bidirectional handshake
  D. to derive the Pairwise Transient Key

  ---

  Pre-shared key (PSK) is computed based on a shared secret (pass-phrase) which was previously shared between the two parties using some secure channel before it needs to be used. It is used to identify both peers to each other. The strength of the PSK depends on the strength of the pass-phrase. The strength of the PSK is important, because WPA-Personal (and WPA2-Personal) use the PSK as the Pairwise Master Key (PMK). The PMK, when combined with two random numbers (nonces) and the MAC addresses of the access point and the client, produces a unique Pairwise Transient Key (PTK) that secures the unicast traffic between the access point and the client. A new PTK is produced each time a client connects to the access point.

• Question 265:

  Refer to the exhibit.

  

  With the current Cisco WLC version 7.0 syslog level settings set the way they are, which log levels are captured by the Syslog server?

  A. syslog level errors only
  B. all syslog levels
  C. only the syslog severity level number of error and greater
  D. only the syslog severity level number of error and less
  D. only the syslog severity level number of error and less

  ---

  Here the syslog level is set to errors, so it will send all logs with a severity level of errors, as well as all other messages with a greater severity level.

• Question 266:

  What is a function of the service port on a WLC?

  A. controls mobility manager communications on all physical ports
  B. controls out-of-band management for system recovery and maintenance
  C. controls communication with Cisco Aps
  D. controls communications for all physical ports
  B. controls out-of-band management for system recovery and maintenance

• Question 267:

  

  

  The AP is unable to join the WLC. What switch configuration will correct this problem?

  A. interface vlanl ip helper-address 10.10.10.10
  B. interface vlan20 ip helper-address 10.10.10.10
  C. ipdhcp pool vlanl option 43 ascii '10.10.10.10'
  D. ip dhcp pool vlan20 option 43 ascii '10.10.10.10'
  E. ipdhcp pool vlanl option 43 hex f1040a0a0a0a
  F. ip dhcp pool vlan20 option 43 hex f1040a0a0a0a
  F. ip dhcp pool vlan20 option 43 hex f1040a0a0a0a

  ---

  Keep the following in mind when troubleshooting wireless DHCP issues:

  

  Use the ip dhcp pool command for VLAN 20 and enter the AP-management IP address as part of option 43.

  

  The command format is option 43, followed by the correct IP address in hexadecimal format, as shown in the example.

  

  If there is only one WLC management address, the Length is 04 (hex), and in this case the WLC management IP address is 10.10.10.10, which is 0a0a0a0a (hex).

• Question 268:

  Which two protocols are available to download or upload files to or from Cisco WLC? (Choose two.)

  A. FTP
  B. TFTP
  C. SCP
  D. HTTP
  E. HTTPS
  A. FTP
  B. TFTP

  ---

  Uploading the Configuration Files (GUI)

  

  Reference: http://www.cisco.com/c/en/us/td/docs/wireless/controller/7-3/configuration/guide/b_cg73/b_wlc-cg_chapter_01010.html

• Question 269:

  An engineer has been asked to disable all OFDM rates in the wireless environment. What three rates should be disabled to fulfill this requirement? (Choose three.)

  A. 2
  B. 5.5
  C. 6
  D. 9
  E. 11
  F. 12
  G. 18
  A. 2
  B. 5.5
  E. 11

• Question 270:

  The existing Cisco Unified Wireless Controller is running version 7.0 code for both the controllers and the Cisco WCS. A controller has been configured with an appropriate rogue rule condition to report discovered APs to the Cisco WCS. Which default alarm level is used to display all rogue APs in the Alarm Summary?

  A. Critical
  B. Flash
  C. Urgent
  D. Major
  E. Minor
  E. Minor

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  Yellow- Minor alarm is used to display all rogue Aps in alarm summary.

  Reference: http://www.cisco.com/c/en/us/td/docs/wireless/wcs/6-0/configuration/guide/WCS60cg/6_0event.html