Cisco 200-355 Online Practice Questions and Exam Preparation

Cisco 200-355 Online Questions & Answers

• Question 321:

  Which three governing bodies for Wireless? (Choose three)

  A. FCC
  B. ETSI
  C. ICAN
  D. INIA
  E. TELEC
  A. FCC
  B. ETSI
  E. TELEC

• Question 322:

  Which two statements about beacon frames used by access points are true? (Choose two.)

  A. They contain SSIDs if this feature is enabled.
  B. They provide vendor proprietary information.
  C. They are another name for an associated request.
  D. They are sent in response to a probe frame.
  E. They include ATIM window information for power save operations.
  A. They contain SSIDs if this feature is enabled.
  B. They provide vendor proprietary information.

  ---

  Probably the most common 802.11 management frame is the beacon frame.

  Beacon frame from a Cisco WLAN

  Here we can easily make out some of the capabilities of the WLAN, for example the SSID is probably going to be the first thing you notice Test SSID in this case, this is what provides the name of the WLAN. As you know SSID broadcasting

  can be disabled (Also called Closed System) at which point the SSID field will be blank.

  Now, at the end of the beacon frame you will notice all this Unknown information, as you have probably guessed (or read) this information is vendor specific, which is common for every vendor to have put their own proprietary information

  within the Beacon frames.

  http://ccie-or-null.net/2011/06/22/802-11-beacon-frames/

• Question 323:

  What is the EIRP value for a transmitter that has a transmitter capable of 15 dBm, an antenna that has a gain of 12 dBi, and a cable that connects the transmitter to the antenna that has 1 db loss?

  A. 26 dBm
  B. 100 mW
  C. 86 dBm
  D. 165 dBm
  E. 1000 mW
  A. 26 dBm

  ---

  To determine EIRP follow this equation:

  -Cable Loss + Antenna Gain = EIRP So in this case 15 - 1 + 12 = 26

• Question 324:

  You have a lightweight AP that has been moved to a new subnet and has become stranded because DNS and DHCP servers are unavailable. The AP cannot connect to the controller. When connected to the console port, which three minimum parameters must you configure? (Choose three.)

  A. AP IP address
  B. controller name
  C. AP hostname
  D. default gateway IP address
  E. controller IP address
  F. username and password
  A. AP IP address
  D. default gateway IP address
  E. controller IP address

  ---

  In order to manually configure static information on a LAP using the AP CLI interface, you can use these EXEC mode CLI commands:

  AP#capwap ap ip address

  AP#capwap ap ip default-gateway

  AP#capwap ap controller ip address

  AP#capwap ap hostname

  (optional)

  Notice the first 3 are needed for the AP to connect to the controller; the last step is optional and not needed for basic connectivity to the controller.

  http://www.cisco.com/c/en/us/support/docs/wireless/aironet-1200-series/99763-reset-lwappconfig-lap.html

• Question 325:

  Which three management protocols provide encrypted access to the WLC or access point? (Choose three.)

  A. SNMPv2
  B. HTTPS
  C. Telnet
  D. SSH
  E. HTTP
  F. SNMPv3
  B. HTTPS
  D. SSH
  F. SNMPv3

• Question 326:

  Refer to the exhibit.

  

  Which GUI item do you click to configure maps with APs in Cisco WCS?

  A. Configure
  B. Client
  C. CleanAir
  D. Services
  E. Administration
  F. Monitor
  F. Monitor

  ---

  The Monitor menu provides you with a top level description of the devices on your network. You can monitor your network, maps, various devices, security, alarms, events, or reports. http://www.cisco.com/c/en/us/td/docs/wireless/wcs/5-2/configuration/guide/WCS5_2cg/5_2wst.html#wp1060563

• Question 327:

  What are two security threats to wireless networks? (Choose two.)

  A. ad-hoc networks
  B. client misassociation
  C. port redirection
  D. cross-site scripting
  A. ad-hoc networks
  B. client misassociation

  ---

  An ad hoc network is a collection of wireless clients that form a network amongst themselves without the use of an AP. As far as network administrators are concerned, ad hoc wireless networks are uncontrolled. If they do not use encryption, they may expose sensitive data to outside eavesdroppers. If a device is connected to a wired network and has bridging enabled, an ad- hoc network may also function like a rogue AP. Additionally, ad-hoc networks can expose client devices to viruses and other security vulnerabilities. For these reasons, many administrators choose to prohibit ad-hoc networks. Valid Client Misassociation:

  This feature does not detect attacks, but rather it monitors authorized (valid) wireless clients and their association within the network. Valid client misassociation is potentially dangerous to network security. The four types of misassociation that we monitor are: http://www.arubanetworks.com/techdocs/ArubaOS_61/ArubaOS_61_UG/New_WIP.php

• Question 328:

  Which wireless topology supports roaming?

  A. IBSS
  B. BSS
  C. ESS
  D. bridging
  C. ESS

• Question 329:

  Which description of the procedure for a lightweight AP to successfully establish a connection to a controller is true?

  A. The AP sends its certificate to the RADIUS server. The AP then authenticates the controller certificate as valid.
  B. The AP sends its certificate to the RADIUS server. The AP then authenticates the RADIUS certificate as valid.
  C. The AP authenticates the received Cisco WLC certificate as valid. The AP then sends its certificate to the controller.
  D. The AP sends its certificate to the controller. The AP then authenticates the received Cisco WLC certificate as valid.
  D. The AP sends its certificate to the controller. The AP then authenticates the received Cisco WLC certificate as valid.

• Question 330:

  Refer to the exhibit.

  

  Which GUI item do you click to configure authentication and authorization in Cisco WCS?

  A. Security
  B. Monitor
  C. Configure
  D. Services
  E. Administration
  F. Tools
  E. Administration

  ---

  The Administration menu enables you to schedule tasks like making a backup, checking a device status, auditing your network, synchronizing the location server, and so on. You can also choose Logging to enable various logging modules and specify restart requirements. You can also choose AAA for user administration such as changing passwords, establishing groups, setting application security settings, and so on. http://www.cisco.com/c/en/us/td/docs/wireless/wcs/5-2/configuration/guide/WCS5_2cg/5_2wst.html#wp1060607