What distinguishes an independent basic service set (IBSS) from an infrastructure basic serviceset (BSS)?

A. An IBSS does not have a distribution system (DS), but a BSS does.

B. An IBSS does not require beacon frames, but a BSS does.

C. An IBSS does not support 802.11authentication or association, but a BSS does.

D. An IBSS does not support any 802.11ac enhancements, but a BSS does.

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.

What terms accurately complete the following sentence?

The IEEE 802.11-2012 standard specifies mandatory support of the ___________ cipher suite for Robust Security Network Associations, and optional use of the ___________ cipher suite, which is designed for use with pre-RSNA hardware.

A. CCMP, TKIP

B. 802.1X/EAP, WEP

C. TLS, SSL

D. RC5, RC4

What statement is true concerning the use of Orthogonal Frequency Division Multiplexing (OFDM) in IEEE

802.11 WLANs?

A. 802.11a and 11n use six (6) "pilot" subcarriers as a reference for thereceiver to detect frequency and phase shifts of the signal.

B. 802.11a/g/n OFDM includes several combinations of modulation and coding to achieve data rates from 1-600 Mbps.

C. With 802.11a OFDM, 16-QAM provides either 48 or 54 Mbps data rates, dependingupon coding rates.

D. 802.11ac VHT-OFDM utilizes 256-QAM, which increases the data rate significantlyover 64-QAM available in HT-OFDM.

E. In 802.11a OFDM, fifty-six (56) subcarriers are used as parallel symbol transmission paths to carry data.

When performing a site survey for a Multiple Channel Architecture (MCA) system in a multi- tenant building with five floors, what aspect should you, as the site surveyor, keep in mind?

A. The RF interference caused by passing airplanes supporting on-board Wi-Fi should be a prime consideration.

B. The omni-directional antennas of the access points should beoriented parallel to the floor to maximize the coverage pattern across as many floors as possible.

C. The channel reuse pattern should be three dimensional with the RF cell extending coverage of each access point to other floors.

D. The Fresnel Zone is completely blocked between floors so each floor is considered a separate site survey.

An 802.11 WLAN transmitter thatemits a 50 mW signal is connected to a cable with 3 dB of loss. The cable is connected to an antenna with 16 dBi of gain.

What is the EIRP power output?

A. 2 mW

B. 500 mW

C. 250 mW

D. 1000 mW

What answer correctly completes the following sentence?

____________ and physical carrier sense functions are used to determine if the wireless medium is busy.

A. Backup

B. Passive

C. Virtual

D. Active

Two co-located 802.11b/g/n APs caninterfere with one another and cause contention and collisions, even when the two APs are operating on non-overlapping channels (e.g. 1 and 6).

What deployment flaw could cause this problem? (Choose 2)

A. The access points are mounted too closely to one another.

B. Reflective objects in the area are causing significant multipath.

C. A client station is usingactive scanning to probe for access points on multiple channels.

D. The output power on the access points is too high.

E. A client station authenticatesto both access points, but does not associate.

F. The access points are not synchronized to the same NTP server.

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

A. 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.

B. 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.

C. 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.

D. 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.

ABC Company has thousands of Wi-Fi users accessing their network on a daily basis. Their WLAN consists of 700 access points, 6 WLAN controllers, and a wireless network management system.

Whatnetwork functions are performed by the enterprise-class WNMS?

A. Radio management, fast roaming, key caching, and other centralized control plane operations

B. Centralized bridging of guest data traffic and application of firewall and QoS policies to data

C. Management of WLAN controller configuration and provisioning of firmware updates

D. Generating, encrypting, and decrypting 802.11 frames and collecting RF radio data.