Cisco 200-355 Online Practice Questions and Exam Preparation

Cisco 200-355 Online Questions & Answers

• Question 161:

  Fill in the Blank.

  Which CLI command you use in WLC to update the running IOS?

  TFTP

• Question 162:

  Following the deployment of a wireless network for data and voice services, an engineer is to validate the coverage. Which type of survey is required to ensure coverage?

  A. passive
  B. active
  C. fingerprinting
  D. calibrating
  A. passive

• Question 163:

  An engineer removed an antenna that was providing 3dB of gain and replaced it with one that provides 16 dB of gain. How has the power level changed?

  A. 20 times stronger
  B. 16 times stronger
  C. 20 times weaker
  D. 16 times weaker
  A. 20 times stronger

• Question 164:

  Refer to the exhibit.

  

  Which action allows you to view a summary count by alarm types for the displayed total of 11 alarms?

  A. Choose Monitor > Alarms
  B. Click the Security tab
  C. Click a respective number in the Alarm Summary
  D. Click the Alarm Summary blue arrow
  E. Choose Home (house icon) > Alarm Summary
  D. Click the Alarm Summary blue arrow

• Question 165:

  How many dBm is 40 mW?

  A. 10 dBm
  B. 16 dBm
  C. 20 dBm
  D. 22 dBm
  E. 40 dBm
  B. 16 dBm

  ---

  The dB measures the power of a signal as a function of its ratio to another standardized value. The abbreviation dB is often combined with other abbreviations in order to represent the values that are compared. Here are two examples:

  You can calculate the power in dBs from this formula:

  Power (in dB) = 10 * log10 (Signal/Reference)

  This list defines the terms in the formula:

  Here is an example. If you want to calculate the power in dB of 50 mW, apply the formula in order to get:

  Power (in dB) = 10 * log10 (50/1) = 10 * log10 (50) = 10 * 1.7 = 17 dBm

  Because decibels are ratios that compare two power levels, you can use simple math in order to manipulate the ratios for the design and assembly of networks. For example, you can apply this basic rule in order to calculate logarithms of

  large numbers:

  log10 (A*B) = log10(A) + log10(B)

  If you use the formula above, you can calculate the power of 50 mW in dBs in this way:

  Power (in dB) = 10 * log10 (50) = 10 * log10 (5 * 10) = (10 * log10 (5)) + (10 * log10(10)) = 7 + 10 = 17 dBm http://www.cisco.com/c/en/us/support/docs/wireless-mobility/wireless-lan-wlan/23231-powervalues-23231.html

• Question 166:

  When configuring roaming in a converged wireless infrastrucutre, which two confgiurations are necessary to roam between Cisco Catlayst 3850 Server Switches? (Choose two.)

  A. mobility anchor
  B. mobility agent
  C. mobility controller
  D. mobility oracle
  E. switch peer groups
  C. mobility controller
  E. switch peer groups

• Question 167:

  Which statement about getting management access to a Cisco WLC from its wireless client is true?

  A. The wireless client can be used only for downloads or uploads to or from the Cisco WLC.
  B. The Cisco WLC does not allow wireless client management access.
  C. The wireless client always has management access to the Cisco WLC.
  D. The Cisco WLC must be configured to allow wireless client management access.
  D. The Cisco WLC must be configured to allow wireless client management access.

• Question 168:

  The new tablets for the sales department require an SNR of 18 or more to operate. Given a noise floor of -88 dBm, what is the minimum RSSI that is needed?

  A. -60 dBm
  B. -70 dBm
  C. -72 dBm
  D. -80 dBm
  E. -96 dBm
  F. -106 dBm
  B. -70 dBm

• Question 169:

  A customer wants to analyze the data rates that are available to a corporate laptop in its wireless deployment. The customer wants a heat map that displays actual data and shows the data rates that are available to the client in different areas of its facility. When using AirMagnet Survey PRO, which type of survey provides the actual data rates?

  A. virtual
  B. predictive
  C. passive
  D. active
  D. active

• Question 170:

  An engineer has been asked to upgrade the code on a WLC that is running Cisco AireOS 8.0. Which two protocols can be used to download the code file to the controller? (Choose two.)

  A. SNMPv2c
  B. FTP
  C. SNMPv3
  D. SFTP
  E. HTTPS
  B. FTP
  D. SFTP