Wireless Networking Protocols Flashcards
ZigBee and Z-Wave are most likely to be found in which type of implementation?
A smart home
A mobile hotspot
Cellular service
A smart home
802.11n offered improvements over earlier Wi-Fi implementations by primarily adding which features? (Choose two)
More antennas
Stronger encryption
Increased signal intensity
More devices supported
A higher frequency
More antennas
Increased signal intensity
Which general statement correctly differentiates between the 2.4 GHz and the 5 GHz frequency bands?
5 GHz is generally more susceptible to interference than 2.4 GHz
- 4 GHz is always slower than 5 GHz
- 4 GHz is generally able to carry farther than 5 GHz
2.4 GHz is generally able to carry farther than 5 GHz
Over which frequency does 802.11a operate?
2.4 GHz
5 MHz
5 GHz
5 GHz
Which cellular service generation first introduced support for mobile internet access and features such as video calling?
3G
4G
2G
3G
The 2.4 GHz band is divided up into how many channels when using Bluetooth devices?
79
11
78
79
Which capability was introduced by 802.11ac that no previous Wi-Fi standard could offer?
Using more antennas
Using stronger encryption
Using dual band signalling
Using dual band signalling
Which channels are typically considered to be good candidates for a Wi-Fi device operating in the 2.4 GHz band?
3,8 and 13
1,2 and 3
1,6 and 11
1,6 and 11
Which application would be best suited using Near Field Communications (NFC)?
A payment system
Vehicle tracking
Inventory control
A payment system
What is a common connection issue with 802.11b that is not as prevalent with 802.11a?
Quality
Interference
Range
Interference
Which maximum bandwidth speed was available when using 802.11g?
100 Mbps
54 Mbps
2 Mbps
54 Mbps
