PW0-270 Online Practice Questions and Answers

In which 802.11 frames is the SSID present, provided the SSID is not removed through proprietary software configuration by an administrator? (Choose 3)

A. Association Request

B. Reassociation Request

C. Probe Response

D. Disassociation

E. Authentication

F. Association Response

Which parameters accurately describe the Beacon Interval field in the Beacon frame? (Choose 2)

A. Value can range from 0 to 2007

B. 4-octet length

C. Indicates the exact time interval between Beacon transmissions

D. Indicates the desired time interval between TBTTs

E. Measured in time units of 1024 祍

Which statements regarding an IEEE 802.11 Channel Switch Announcement frame are true? (Choose 2)

A. Channel Switch Announcement frames use the Action frame body format.

B. Channel Switch Announcement frames are the only place where the Channel Switch Announcement element is found.

C. Channel Switch Announcement frames are transmitted and retransmitted on a channel until all associated STAs successfully move to the new channel.

D. Channel Switch Announcement elements may be carried in Beacon management frames.

E. In an infrastructure BSS, Channel Switch Announcement frames may be transmitted by either the AP or an associated STA.

When an originator QoS STA initiates a BlockAck agreement with a recipient QoS STA, what is the first frame sent by the originator?

A. BlockAckSetupReq

B. BlockAckReq

C. ADDBA Request

D. BlockAckPolicyReq

E. ActionBAReq

To effect Preauthentication, a STA's supplicant sends an IEEE 802.1X/EAPoL Start message. How is the EAPoL Start message addressed?

A. DA = MAC of default gateway; RA = BSSID of the AP to which the STA is associated

B. DA = BSSID of targeted AP; RA = BSSID of the AP to which the STA is associated

C. DA = MAC of the default gateway; RA = Ethernet MAC of the targeted AP

D. DA = BSSID of the targeted AP; RA = Ethernet MAC of the targeted AP

Many access points support IEEE 802.1Q VLAN tagging. When analyzing a WLAN system using IEEE 802.1Q tags, where can the VLAN tag number be seen?

A. In the Sequence Control field of the MSDU

B. In the PLCP header's Service field

C. In the Frame Control field of the MPDU header

D. In the Ethernet header on the wired port of the access point

E. In the Beacon Management frame's Capabilities fixed field

What types of wireless systems are illustrated?

A. An ERP IEEE 802.11 system using channel 6 and Bluetooth v1.2 discovery

B. A Bluetooth v2.0 file transfer and a 40 MHz HT AP on channels 11, 7 (primary, secondary)

C. A 2.4 GHz cordless phone on channel 14 and a wireless RFID reader

D. An 802.11 HR/DSSS system using channel 2 and a digital FHSS phone

As it relates to a spectrum analyzer, complete the following sentence.

The ____________ plot always displays the percentage of time (shown on the Y axis) that the overall RF power is a certain specified threshold (of amplitude) above the noise floor for a given frequency range (shown on the X axis).

A. Real-Time FFT

B. Swept Spectrogram

C. FFT Duty Cycle

D. Interferer Count

E. SNR

As shown in the exhibit, a spectrum analyzer has measured both 802.11 and non-802.11 RF transmissions in the 2.4 GHz band. The exhibit shows a continuous video transmitter near channel 5.

Based upon the exhibit,

what impact does the video transmitter have on WLAN operations throughout the band?

A. The video transmitter is preventing WLAN operation on channel 6, and has only a minor impact on channels 1 and 11.

B. The video transmitter has made no impact on WLAN operation in the band.

C. The video transmitter is preventing all WLAN transmissions in the band.

D. The video transmitter is preventing all WLAN transmissions on channel 6, and its impact on channels 1 and 11 is severe.

Given the IEEE 802.11 Beacon frame decode shown,

determine which statement is definitively true.

A. The access point is operating on channel 3.

B. The access point has both 1 Mbps and 2 Mbps configured as basic rates.

C. This Beacon frame came from an ERP or HT access point.

D. The SSID value in this Beacon is null.

E. ERP mobile stations must use the RTS/CTS protocol before Data transmissions.