CWNA-106 Online Practice Questions and Answers

What factors will have the most significant impact on the amount of wireless bandwidth available to each station within a BSS? (Choose 2)

A. The number of clientstations associated to the BSS

B. The power management settings in theaccess point's beacons

C. The presence of co-located (10m away) access points on non-overlapping channels

D. The data rates at which nearby client stations are transmitting and receiving data

E. The layer 3 protocol used by each station to transmit data over the wireless link

What statement accurately describes the RF cables and connectors that are used in an 802.11WLAN system?

A. 75 and 125 ohms are the typical impedances of 802.11 WLAN connectors.

B. Two RF connectors of the same type (e.g. SMA), manufactured by different companies, may vary in specifications.

C. Some RF connectorsdo not cause insertion loss.

D. Large diameter RF cables cause greater loss than small diameter cables.

When planning an access point deployment that utilizes Power over Ethernet (PoE) switches at the network edge, what design decision could adversely affect the operation of 802.3-2012, Clause 33 APs?

A. All ports on theEthernet switch will be supporting Class 3 PoE powered devices.

B. Some APs are connected to a PoE switch and are also receiving power from an AC outlet.

C. The Ethernet switch uplink ports are not connected to an 802.3-2012, Clause 33- compliant core or distribution Ethernet switch.

D. A gigabit Ethernet switch port supporting an 802.11a/g AP auto-negotiates to 100 Mbps.

The OSI model is a 7-layer model forunderstanding the functions of a communication system. What OSI sublayers are specifically addressed by the IEEE 802.11-2012 standard? (Choose 2)

A. Network

B. PPDU

C. PLCP

D. MAC

E. IP

F. Transport

Whatfactors are likely to cause the greatest impact on the application layer throughput of an 802.11n client station in a 2.4 GHz HT BSS? (Choose 3)

A. Use of WEP or TKIP for encryption instead of CCMP

B. Use of passphrase authentication instead of 802.1X/EAPauthentication

C. Increasing the beacon interval from 100 to 200 (TUs)

D. RF interference from more than 10 nearby Bluetooth transmitters

E. Increasing or decreasing the number ofspatial streams in use by the client station and AP

What phrase defines Equivalent Isotropically Radiated Power (EIRP)?

A. The power output from theradio into the RF cable

B. The power output from the radio after cable losses

C. Thehighest RF signal strength that is transmitted from a given antenna

D. Power supplied from the transmission line to the antenna input

What component of the 802.11 standard allows stations to reserve access to the RF medium for a specified period of time?

A. Short guard intervals

B. DTIMInterval

C. Listen Interval

D. Probe Request frames

E. RTS or CTS frames

What parameter of the client drivershould be configured on a Windows computer to optimize moving from one AP to another within the ESS?

A. Band preference

B. Roaming threshold

C. ESSID selection

D. SSID selection

You are anindependent contractor, hired to perform an indoor site survey and network design for Luxury Full Service Hotels International. The network will support hotel staff and guest users. You are interviewing the network manager to determine business, performance, and security requirements for the future 802.11 WLAN.

What questions should you ask the IT manager? (Choose 2)

A. What data cabling is currently installed in the rooms and throughout the hotel?

B. How much RF loss do you expect between hotel rooms?

C. Who installed your existing wired network?

D. What types of applications will be used by the hotel staff?

E. On what frequency do the microwave ovens operate in the hotel suites?

XYZ Company has decided to install an 802.11 WLAN system that will support 1000 wireless users, but they are concerned about network security. XYZ is interested in deploying standardized security features. In addition to WPA2-Enterprise with PEAP and role-based access control, XYZ would like to support management frame protection as well as a fast secure roaming protocol for future mobile handsets.

As XYZ Company selects a product to deploy, what two IEEE amendments, which are included in 802.112012, should be supported to provide the management frame protection and fast secure roaming security features?

A. 802.11j and 802.11k

B. 802.11z and 802.11w

C. 802.11r and 802.11w

D. 802.11r and 802.11k