Network+ 8th edition Chapter 6 Quiz
In an 802.11 data frame, what is the maximum amount of data that can be sent?
2312 bytes
How many data streams are used in 802.11ac Wave 2 devices?
4 data streams
In an 802.11 data frame, what is the size of the frame check sequence field?
6 bytes
The wireless spectrum, as defined by the FCC, spans between which two frequencies?
9 kHz and 300 GHz
What scenario describes an evil twin attack?
A malicious access point is configured with the SSID of a non-malicious public access point.
In IEEE terminology, a group of 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
What type of device can be used to assess the quality of a wireless signal?
spectrum analyzer
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.
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 is the purpose of the Layer 2 LLC sublayer?
It is used to handle multiplexing, flow and error control, and reliability.
At what layer of the OSI model do the 802.11 standards vary?
Physical layer
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.
How does the 802.11 data frame indicate how a large packet should be fragmented?
The sequence control field indicates how packets will be subdivided.
Diffraction has what effect on a wireless signal's propagation?
The signal is split into secondary waves that continue in the direction in which they split.
Healing messages are a feature of what smart home protocol?
Z-Wave
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
In Linux, what command can be used for viewing and setting wireless interface parameters?
iwconfig
What 802.11 frame type is involved in association and reassociation, including probe and beacon frames?
management frames
