CompTIA A+ Exam 220-1101 - Wireless Networking Quiz
Which of the following answers refer to the characteristics of Bluetooth? (Select 3 answers)
2.4 GHz frequency range Used for connecting devices in a WPAN Short-range wireless technology
Frequency bands used by 802.11 networks include: (Select 2 answers)
5.0 GHz 2.4 GHz
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
All of the above
Which of the answers listed below refer to the IEEE 802.11b wireless standard? (Select 2 answers)
Maximum data signaling rate of 11 Mbps 2.4 GHz frequency range
Which of the following answers refer to the IEEE 802.11g wireless standard? (Select 2 answers)
Maximum data signaling rate of 54 Mbps 2.4 GHz frequency range
What are the characteristic features of the IEEE 802.11a wireless standard? (Select 2 answers)
Maximum data signaling rate of 54 Mbps 5.0 GHz frequency band
Which wireless technology enables identification and tracking of tags attached to objects?
RFID
A type of identification badge that can be held within a certain distance of a reader to authenticate the badge holder is called:
RFID badge
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
Which of the following answers refer to directional antenna types suitable for long-range point-to-point bridging links? (Select 3 answers)
Yagi antenna Dish antenna Parabolic antenna
Which of the following answers refers to the features of the IEEE 802.11ac (WiFi 5) wireless standard? (Select 3 answers)
5.0 GHz frequency band Maximum data signaling rate of up to 6.933 Gbps Multi-User Multiple Input / Multiple Output (MU-MIMO)
What are the characteristics of the IEEE 802.11ax (WiFi 6) wireless standard? (Select all that apply)
5.0 GHz frequency band Multi-User Multiple Input / Multiple Output (MU-MIMO) 2.4 GHz frequency band Maximum data signaling rate of up to 9.607 Gbps
Which of the following actions would be of help while troubleshooting intermittent wireless connectivity problems? a. Check physical connections (e.g., loose/faulty cables, expansion cards, etc.) b. Increase the signal strength (adjust power level controls on a WAP, move closer to a WAP, or switch to a different WAP) c. Configure a WAP to operate on a different wireless channel (1, 6, or 11) d. Check for interference from wireless devices operating in the 2.4 GHz frequency band (e.g., cordless phones, Bluetooth devices, or microwave ovens) e. If possible, check the network's performance on a different frequency band (2.4 GHz or 5 GHz) f. Reduce the number of wireless devices using up available bandwidth on the network g. All of the above
All of the above
The characteristic features of the IEEE 802.11n wireless standard include: (Select all that apply)
Multiple Input / Multiple Output (MIMO) 2.4 GHz frequency band 5.0 GHz frequency band Maximum data signaling rate of up to 600 Mbps
Which of the following antenna types would be the least suitable for long-range point-to-point bridging links?
Omnidirectional antenna
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