Cisco 200-355 Online Practice Questions and Exam Preparation

Cisco 200-355 Online Questions & Answers

• Question 181:

  What does the current European Telecommunications Standards Institute rule state is the 2.4-GHz maximum transmitter output power for point-to-point installations?

  A. 16 dBm
  B. 17 dBm
  C. 20 dBm
  D. 30 dBm
  E. 36 dBm
  B. 17 dBm

• Question 182:

  An engineer is connecting a Cisco 5508 Wireless Controller that must connect to an out-of-band management network for management only. Which two options should be used for the port on the WLC and the cable type? (Choose two.)

  A. service port
  B. redundancy port
  C. console port
  D. distribution system port
  E. straight through cable
  F. crossover cable
  G. console cable
  A. service port
  E. straight through cable

• Question 183:

  An engineer is troubleshooting why wireless clients have not been able to connect to the network. Where would an engineer verify the total number of excluded clients in the last day?

  A. Security > Miscellaneous
  B. Security > Rogues
  C. Alarms
  D. Events
  E. Clients > Troubleshoot
  F. Access Points
  A. Security > Miscellaneous

• Question 184:

  What are three primary components that describe TKIP? (Choose three.)

  A. broadcast key rotation
  B. dynamic WEP
  C. message integrity check
  D. per-packet key hashing
  E. symmetric key cipher
  F. WPA2 enterprise mode
  A. broadcast key rotation
  C. message integrity check
  D. per-packet key hashing

  ---

  TKIP uses the same underlying mechanism as WEP, and consequently is vulnerable to a number of similar attacks. The message integrity check, per- packet key hashing, broadcast key rotation, and a sequence counter discourage many attacks. The key mixing function also eliminates the WEP key recovery attacks. http://en.wikipedia.org/wiki/Temporal_Key_Integrity_Protocol

• Question 185:

  Refer to the exhibit.

  

  Which option must be chosen if only the WPA is needed?

  A. WPA+WPA2
  B. Static-WEP + 802.1X
  C. 802.1X
  D. CKIP
  A. WPA+WPA2

  ---

  Wi-Fi Protected Access (WPA) and Wi-Fi Protected Access II (WPA2) are two security protocols and security certification programs developed by the Wi-Fi Alliance to secure wireless computer networks. http://en.wikipedia.org/wiki/Wi-Fi_Protected_Access

• Question 186:

  Which option is defined as RF energy that reduced the SNR on an 802.11 environment?

  A. interference
  B. spectrum analyzer
  C. CCA
  D. noise
  D. noise

• Question 187:

  What is the optimum 2.4 GHz wireless cell-overlap percentage for VoWLAN deployments?

  A. 10
  B. 20
  C. 15
  D. 5
  B. 20

• Question 188:

  Refer to the exhibit.

  

  A customer is determining whether a Windows 7 laptop is operating on the correct IEEE 802.11 standard. Which standard is being used by the laptop in the exhibit?

  A. 802.11b
  B. 802.11g
  C. 802.11n
  D. 802.11p
  C. 802.11n

• Question 189:

  Which three AP modes of operation allow for the wIPS sub mode? (Choose three.)

  A. local mode
  B. bridge mode
  C. monitor mode
  D. H-REAP mode
  E. rogue detector mode
  F. SE-Connect mode
  G. sniffer mode
  A. local mode
  C. monitor mode
  D. H-REAP mode

  ---

  Only Cisco Aironet 1130, 1140, 1240, 1250, 3502E and 3502I Series Access Points support wIPS monitor mode.

  The wIPS sub mode is supported only when access point mode is Monitor, Local or HREAP. But for 1130 and 1240 access points, wIPS is supported only in Monitor Mode. Reference: http://www.cisco.com/c/en/us/td/docs/wireless/ mse/3350/7-0MR1/wIPS/configuration/guide/wIPS_70MR1/msecg7x_ch6_wIPS.html

• Question 190:

  Which IEEE 802.11n client feature can combine the signal from multiple antennas and radio chains to improve SNR?

  A. channel aggregation
  B. spatial multiplexing
  C. MAC layer efficiency
  D. TxBF
  E. MRC
  F. MCS
  E. MRC