Chapter 6 Quiz
Select below the name for the special signal that contains information that a wireless node requires in order to associate itself with an access point:
Beacon Frame
Which type of multiplexing is defined by wavelength instead of frequency?
CWDM
What signal propagation phenomena causes a wireless signal to split into secondary waves when it encounters an obstruction?
Diffraction
Select the component of enterprise level structured cabling that serves as the location where an incoming network interface enters a building and connects with the building's backbone cabling:
Entrance Facility
NFC tags are very expensive and cannot be purchased blank, requiring them to be pre-loaded. (T/F)
False
Which method of transmission allows signals to travel in both directions over a medium but in only one direction at a time?
Half-Duplex
At what layer of the OSI model would a TCP or UDP header be added to a payload?
Layer 4
What type of routing protocol enables routers to communicate beyond neighboring routers, allowing each router to create a map of an entire network?
Link State
Which 802.11 wireless innovation allows for the use of multiple antennas on an access point that can issue a signal to one or more receivers?
MIMO
What 802.11 frame type is involved in association and reassociation, including probe and beacon frames?
Management Frames
What signal propagation phenomena causes the diffusion, or the reflection in multiple different directions, of a signal?
Scattering
All wireless signals are carried through the air by electromagnetic waves.
True
Multipath signaling is a significant cause of fading. (T/F)
True
The WPS PIN is vulnerable to brute force attacks. (T/F)
True
Select below the network topology that is not a valid wireless network topology:
bus
Which command below can be used on Linux to modify the SSID of the access point you choose to associate with?
iwconfig
In an 802.11 data frame, what is the size of the frame check sequence field?
6 bytes (frame check sequence field)
Which 802.11 standard was the first to utilize the 5 GHz band?
802.11a
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
Ideally, stations must remain within what range of an access point in order to maintain optimal transmission speeds?
300 feet
How many data streams are used in 802.11ac Wave 2 devices?
4 data streams
Select below the band that is not one of the four frequency bands used in the 5 GHz range for wireless LANs:
5.9 GHz
What is the maximum theoretical throughput of 802.11n?
600 Mbps
What is the max theoretical throughput of the 802.11ac wireless technology when using Wave 1 devices?
1.3 Gbps
By default, the pathping command sends how many pings per hop?
100
Which 802.11 frame type is related to medium access and data delivery, and includes ACK and RTS/CTS frames?
Control frames
