SRWE Module 12 -- 12.3 WLAN Operations

What is the primary function of the Basic Service Set Identifier (BSSID) in a wireless network?

• To identify the SSID of the network using the APs IP address

• To identify each BSS using the MAC address of the AP

• To provide the WPA2-PSK for network access

• To determine the coverage range for a common DS

Which of the following best describes the role of the Distribution System (DS) in an Extended Service Set (ESS)?

• It connects multiple BSSs to form an ESS

• It provides the SSID for the network

• It manages the security settings of the network

• It controls the channel settings for the APs

What allows a wireless client to roam from one BSA to another without lossing connectivity?

(choose 2)

• ESS

• DS

• Tethering

• FCS

• CSMA

In a wireless frame, what is the purpose of the Frame Control field?

• To indicate the time remaining to receive the next frame

• To identify the type of wireless frame

• To provide the MAC address of the sender

• To store the data for transmission

In a wireless frame, what is the purpose of the Duration field?

• To indicate the time remaining to receive the next frame

• To identify the type of wireless frame

• To provide the MAC address of the sender

• To store the data for transmission

What is the function of the Sequence Control field in a wireless frame?

• To manage the security settings of the frame

• To control fragmented frames

• To provide the MAC address of the AP

• To indicate the duration of the frame

If the frame coming from a wireless device, match the address to the correct description.

• MAC address of the AP

• Address 3

• MAC address of the destination

• Address 2

• MAC address of the sender

• Address 1

If the frame coming from an AP, match the address to the correct description.

• MAC address of the destination

• Address 1

• MAC address of the sender

• Address 2

• MAC address of the AP

• Address 3

How does a wireless client determine when to send data on a network using CSMA?

• Using CSMA/CD

• By listening to the channel to see if it is idle and then sending an RTS

• By waiting for a specific time interval before sending data and then sending a CTS

• Using CSMA/CA

What happens if a wireless client does not receive a Clear to Send (CTS) message from the AP?

• It sends the data regardless

• It waits a random amount of time before restarting the process

• It disconnects from the network and seeks and probes for a different SSID

• It chooses a non-overlapping channel and resends an RTS