Unit 6 IQ Checkpoint (Cen)

What scenario describes an evil twin attack?

A malicious access point is configured with the SSID of a non-malicious public access point.

When troubleshooting wireless issues, what statement is accurate?

Access points that use overlapping channels can cause interference with each other if they are too close.

The 802.11 standard specifies the use of what technique to minimize the potential for collisions?

Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA)

The LLC sublayer is primarily concerned with managing MAC addresses in message frames.

False

Z-Wave transmissions have a range of up to 50 m per hop, and can tolerate up to 8 hops through repeaters.

False

How does refraction affect the propagation of a wireless transmission?

It distorts the signal as it travels into and through a different transmission medium.

What optional protocol can be used in 802.11 to reserve the medium for one node's use?

RTS/CTS (Request to Send/Clear to Send)

You are troubleshooting a client's wireless networking issue. Which of the following will prevent the client from connecting to the network?

The client has a wireless profile configured for the "campus" SSID, but the access point is broadcasting the "CAMPUS" SSID.

The Wireless Personal Area Network (WPAN) is defined in the 802.15 standard.

True

The most secure Wi-Fi communication is made possible by combining a RADIUS server with WPA or WPA2, known as WPA-Enterprise or WPA2-Enterprise, respectively.

True

If you need to evaluate Wi-Fi network availability as well as optimize Wi-Fi signal settings and identify security threats, what tool should you use?

Wi-Fi analyzer

In IEEE terminology, stations that share an access point are said to be part of which of the following?

basic service set

What special signal is issued periodically from an AP and contains the network transmission rate and service set identifier (SSID), as well as other information needed for a computer to associate with the AP?

beacon frame

Upon connecting to a Wi-Fi network, you're redirected to a login screen and a request to accept terms of service before being connected. What is this an example of?

captive portal

Which 802.11 frame type is related to medium access and data delivery, and includes ACK and RTS/CTS frames?

control frames

What 802.11 frame type is involved in association and reassociation, including probe and beacon frames?

management frames

The use of multiple antennas on an access point to issue a signal to one or more receivers is enabled by what 802.11 innovation?

multiple input-multiple output (MIMO)

What type of device can be used to assess the quality of a wireless signal?

spectrum analyzer

In an 802.11 data frame, what is the maximum amount of data that can be sent?

2312 bytes

Which Bluetooth power class allows for a maximum power output of 100 mW and a range of up to 100 m?

Class 1