CWNA-106 by CWNP Actual Free Exam Q&As

Question 1

What term correctly completes the following sentence?
802.11a/b/g used a mandatory 800ns guard interval. 802.11n introduced anoptional short
400ns guard interval. Guard intervals (GI) are necessary in OFDM to reduce the likelihood of interference between two consecutive ____________.

A. Symbols B. Frames C. Packets D. Bits

Discussion 0

Correct Answer: A Vote an answer

Question 2

What is alwaysrequired to establish a high quality 2.4 GHz RF link at a distance of 3 miles
(5 kilometers)?

A. Minimum output power level of 2 W B. A Fresnel Zone that is at least 60% clear of obstructions C. A minimum antenna gain of 11 dBi at both endpoints D. Grid antennas ateach endpoint

Discussion 0

Correct Answer: B Vote an answer

Question 3

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

A. DTIMInterval B. RTS or CTS frames C. Probe Request frames D. Listen Interval E. Short guard intervals

Discussion 0

Correct Answer: B Vote an answer

Question 4

What feature was introduced in the 802.11h amendment in order to uphold regulatory requirements for 5 GHz operations.

A. Transmit Power Control(TPC) B. Distributed Coordination Function (DCF) C. 256-QAM D. Radio Resource Management (RRM)

Discussion 0

Correct Answer: A Vote an answer

Question 5

Whatmechanisms are specified by the IEEE 802.11 standard to attempt to prevent multiple radios from transmitting on the RF medium at a given point in time? (Choose 3)

A. Collision detection B. Slot assessment value C. Network allocation vector D. Random backoff timer E. Clear channel assessment

Discussion 0

Correct Answer: C,D,E Vote an answer

Question 6

As a station moves away from the access point to which it is associated, it changes its data rate from 600 Mbps to 540 Mbps and then to 450 Mbps.
What IEEE 802.11 term or phase is used to describe this functionality?

A. Rate Set Selectivity B. Multirate Control C. Dynamic Rate Switching D. Modulation and Coding Selection

Discussion 0

Correct Answer: C Vote an answer

Question 7

What feature(s) are most likely to be supported by 802.11 enterprise-class WLAN controllers? (Choose 4)

A. IGMP snooping B. Captive web portals C. Link aggregation / port trunking D. 802.1p and DSCP QoS E. BGP and Frame Relay

Discussion 0

Correct Answer: A,B,C,D Vote an answer

Question 8

Which antenna types are commonly used by indoor Wi-Fi devices in a MIMO diversity implementation? (Choose 2)

A. Sector B. Dish C. Dipole D. Grid E. Patch

Discussion 0

Correct Answer: C,E Vote an answer

Question 9

In an infrastructure Basic Service Set (BSS), how does the passive scanning process occur?

A. Client stations broadcast Probe Request frames on the singlechannel forwhich they are programmed. Nearby access points respond on that channel with Probe Response frames.
Client stations record information found in the Probe Response frames for use in the association process. B. Access points broadcast Beacons on asingle channel for which they are programmed.
Nearby client stations listen for Beacon frames and record information found in the
Beacons for use in the association process. C. Client stations broadcast Probe Request frames on all supportedchannels inthe regulatory domain. Nearby access points respond with Probe Response frames. Client stations record information in the Probe Response frames for use in the association process. D. Access pointsbroadcast Beacons on all channels of each radio within the regulatory domain. Nearby client stations record information found in the Beacons for use in the association process.

Discussion 0

Correct Answer: B Vote an answer

CWNP Certified Wireless Network Administrator - CWNA-106 Exam Practice Test