CIS 320 Exam 2 Review Questions &
Answers (Grade A+)
Chapter 6 - Wireless LANs I -
Wireless network standards operate at ________. -
correct answer ✅the data link layer
In the Shannon Equation, if you quadruple the bandwidth in a
channel while the signal-to-noise ratio remains the same, you can
transmit ________. -
correct answer ✅about 4 times as fast
A channel extends from 55 MHz to 60 MHz. Its bandwidth is
________. -
correct answer ✅5 MHz
What propagation problem becomes worse as frequency increases?
-
correct answer ✅Shadow zones.
Which of the following uses OFDM? -
correct answer ✅Both 802.11g and 802.11n
, CIS 320 Exam 2 Review Questions &
Answers (Grade A+)
Spread spectrum transmission is used in WLANs because ________.
-
correct answer ✅it is required by regulators
The 5 GHz band supports about ________ nonoverlapping 20 MHz
channel(s). -
correct answer ✅12
The 2.4 GHz band supports ________ nonoverlapping 20 MHz
channel(s). -
correct answer ✅3
As a station moves away from an access point, the access point
transmits more slowly to it. -
correct answer ✅True
If more users move to an access point, this decreases ________. -
correct answer ✅individual throughput
Traditional MIMO can ________ -
correct answer ✅send multiple signals in the same channel
Answers (Grade A+)
Chapter 6 - Wireless LANs I -
Wireless network standards operate at ________. -
correct answer ✅the data link layer
In the Shannon Equation, if you quadruple the bandwidth in a
channel while the signal-to-noise ratio remains the same, you can
transmit ________. -
correct answer ✅about 4 times as fast
A channel extends from 55 MHz to 60 MHz. Its bandwidth is
________. -
correct answer ✅5 MHz
What propagation problem becomes worse as frequency increases?
-
correct answer ✅Shadow zones.
Which of the following uses OFDM? -
correct answer ✅Both 802.11g and 802.11n
, CIS 320 Exam 2 Review Questions &
Answers (Grade A+)
Spread spectrum transmission is used in WLANs because ________.
-
correct answer ✅it is required by regulators
The 5 GHz band supports about ________ nonoverlapping 20 MHz
channel(s). -
correct answer ✅12
The 2.4 GHz band supports ________ nonoverlapping 20 MHz
channel(s). -
correct answer ✅3
As a station moves away from an access point, the access point
transmits more slowly to it. -
correct answer ✅True
If more users move to an access point, this decreases ________. -
correct answer ✅individual throughput
Traditional MIMO can ________ -
correct answer ✅send multiple signals in the same channel
