Course 8

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Give a general statement that correctly differentiates between the 2.4 GHz and the 5 GHz frequency bands?

2.4 GHz is generally able to carry farther than 5 GHz

Which cellular service generation first introduced support for mobile internet access and features such as video calling?

3G

Zigbee and Z-Wave are most likely to be found in which type of implementation?

A smart home

802.11g bandwidth and frequency?

Bandwidth 54 Mbps 2.4 GHz Frequency combined the best of both a and b, but only backwards compatible with b

Name 2 Pros of using 5 GHz frequency Wi-Fi Standard...?

Higher data rate Less susceptible to interference, fewer devices use the 5 GHz frequency

802.11b was susceptible to interface from__________ due to frequency __________ band.

Home cordless phones 2.4

802.11n offered improvements over earlier Wi-Fi implementations by primarily adding which two features?

Increased Signal intensity More antennas

Name 2 Pros of using 2.4GHz frequency Wi-Fi Standard...?

Larger coverage area than 5GHz Can perpetrate solid objects (floors and walls)

802.11a and 802.11b were designed pretty much....?

at the same time, 802.11b being cheaper for use in home networks.

802.11 b and g had a ______________ frequency, that allowed it to carrier farther but still susceptible to interference.

unregulated

Over which frequency does 802.11a operate?

5 GHz

Which maximum bandwidth speed was available when using 802.11g?

54 Mbps

What is a common connection issue with 802.11b that is not as prevalent with 802.11a?

Interference

Which capability was introduced by 802.11ac that no previous Wi-Fi standard could offer?

Using dual band signaling

802.11n is more resilient to interference, like microwaves, but due to use of multiple signals.....?

it may interfere with nearby 802.11b/g networks

Which channels are typically considered to be good candidates for a Wi-Fi device operating in the 2.4 GHz band?

1, 6, and 11

The 2.4 GHz band is divided up into how many channels when using Bluetooth devices?

79

802.11ac since it supports 2.4GHz and 5 GHz simultaneously is backwards compatible with...?

802.11 b/g/n on 2.4 GHz and 802.11 a on 5 GHz

Wi-Fi 2 was another way to refer to 802......?

802.11a

What is the most current standard of 802.11, The latest generation of Wi-Fi Signaling....?

802.11ac


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