Wireless Networking

Question 1

Frequency bands used by 802.11 networks include: (Select 2 answers)
5.0 GHz
5.4 GHz
2.0 GHz
2.4 GHz

Answer 1

5.0 Ghz
2.4 Ghz

Question 2

A common example of channel overlapping in wireless networking would be the 2.4 GHz band used in 802.11 networks, where the 2.401 - 2.473 GHz frequency range is used for allocating 11 channels, each taking up a 22-MHz portion of the available spectrum. Setting up a wireless network to operate on a non-overlapping channel (1, 6, and 11 in this case) allows multiple networks to coexist in the same area without causing interference.
True
False

Answer 2

True

Question 3

Which of the following answers refer to the characteristics of Bluetooth? (Select 3 answers)
2.4 GHz frequency range
Long-range wireless technology
Used for connecting devices in a WPAN
5.0 GHz frequency range
Used for connecting devices in a WLAN
Short-range wireless technology

Answer 3

2.4 GHz frequency range
Used for connecting devices in a WPAN
Short-range wireless technology

Question 4

What are the characteristic features of the IEEE 802.11a wireless standard? (Select 2 answers)
2.4 GHz frequency band
Maximum data signaling rate of 54 Mbps
5.0 GHz frequency band
Maximum data signaling rate of up to 600 Mbps
5.4 GHz frequency band
Maximum data signaling rate of 11 Mbps

Answer 4

Maximum data signaling rate of 11 Mbps
2.4 GHz frequency range

Question 5

Which of the answers listed below refer to the IEEE 802.11b wireless standard? (Select 2 answers)
Maximum data signaling rate of 11 Mbps
2.0 GHz frequency range
Maximum data signaling rate of 54 Mbps
5.0 GHz frequency range
Maximum data signaling rate of up to 600 Mbps
2.4 GHz frequency range

Answer 5

2.4 GHz frequency range
Maximum data signaling rate of 11 Mbps

Question 6

Which of the following answers refer to the IEEE 802.11g wireless standard? (Select 2 answers)
Maximum data signaling rate of up to 600 Mbps
5.4 GHz frequency band
Maximum data signaling rate of 54 Mbps
2.4 GHz frequency range
Maximum data signaling rate of 11 Mbps
5.0 GHz frequency range

Answer 6

2.4 GHz frequency range

Maximum data signaling rate of 54 Mbps

Question 7

Multiple Input / Multiple Output (MIMO) Multiple Input / Multiple Output (MIMO) is a wireless technology that allows for significant increase in wireless data throughput due to the use of multiple antennas and multiple data streams.
True
False

Answer 7

True

Question 8

The characteristic features of the IEEE 802.11n wireless standard include: (Select all that apply)
Multiple Input / Multiple Output (MIMO)
Maximum data signaling rate of 54 Mbps
2.4 GHz frequency band
Multi-User Multiple Input / Multiple Output (MU-MIMO)
5.0 GHz frequency band
Maximum data signaling rate of up to 600 Mbps

Answer 8

Multiple Input / Multiple Output (MIMO)
2.4 GHz frequency band
5.0 GHz frequency band
Maximum data signaling rate of up to 600 Mbps

Question 9

Which of the following answers refers to the features of the IEEE 802.11ac (WiFi 5) wireless standard? (Select 3 answers)
Multiple Input / Multiple Output (MIMO)
Maximum data signaling rate of up to 3.39 Gbps
5.0 GHz frequency band
Maximum data signaling rate of up to 6.933 Gbps
Multi-User Multiple Input / Multiple Output (MU-MIMO)
Maximum data signaling rate of up to 10-12 Gbps
2.4 GHz frequency band

Answer 9

5.0 GHz frequency band
Maximum data signaling rate of up to 10-12 Gbps
Multi-User Multiple Input / Multiple Output (MU-MIMO)

Question 10

What are the characteristics of the IEEE 802.11ax (WiFi 6) wireless standard? (Select all that apply)
Maximum data signaling rate of up to 3.39 Gbps
5.0 GHz frequency band
Multi-User Multiple Input / Multiple Output (MU-MIMO)
Maximum data signaling rate of up to 6.933 Gbps
2.4 GHz frequency band
Maximum data signaling rate of up to 9.607 Gbps
Multiple Input / Multiple Output (MIMO)
Maximum data rate 10-12 Gbps

Answer 10

2.4 GHz frequency band
5.0 GHz frequency band
Maximum data rate 10-12 Gbps

Question 11

Which of the following antenna types would be the least suitable for long-range point-to-point bridging links?
Yagi antenna
Omnidirectional antenna
Dish antenna
Unidirectional antenna
Parabolic antenna

Answer 11

Omnidirectional antenna

Question 12

Which of the answers listed below refers to example of an unlicensed wireless frequency band?
900 MHz
2.4 GHz
5 GHz
5.8 GHz
All of the above

Answer 12

All of the above.

Question 13

Which of the following answers refer to directional antenna types suitable for long-range point-to-point bridging links? (Select 3 answers)
Yagi antenna
Omnidirectional antenna
Dish antenna
Non-directional antenna
Parabolic antenna
Dipole antenna

Answer 13

Yagi Antenna
Dish Antenna
Dipole Antenna

Question 14

Which wireless technology enables identification and tracking of tags attached to objects?
WTLS
GPS
RFID
NFC

Answer 14

RFID

Question 15

A type of identification badge that can be held within a certain distance of a reader to authenticate the badge holder is called:
ID badge
Smart card
Security token
RFID badge

Answer 15

RFID Badge

Question 16

Which of the following actions would be of help while troubleshooting intermittent wireless connectivity problems?

Check physical connections (e.g., loose/faulty cables, expansion cards, etc.)
Increase the signal strength (adjust power level controls on a WAP, move closer to a WAP, or switch to a different WAP)
Configure a WAP to operate on a different wireless channel (1, 6, or 11)
Check for interference from wireless devices operating in the 2.4 GHz frequency band (e.g., cordless phones, Bluetooth devices, or microwave ovens)
If possible, check the network’s performance on a different frequency band (2.4 GHz or 5 GHz)
Reduce the number of wireless devices using up available bandwidth on the network
All of the above

Answer 16

All of the above