Wireless Networks

Question 1

4G / LTE

Answer 1

Speed: 150 MB/s
300 MB/s (LTE-A)

Question 2

5G

Answer 2

Uses Higher Frequency band

Speed: 10 GB/s after 1GB initial

IoT enabling

Question 3

802.11a

Answer 3

5 Ghz

Speed: 54 MB/s

Question 4

802.11b

Answer 4

2.4 Ghz (better penetration)

Speed: 11 MB/s

Question 5

802.11g

Answer 5

[Wifi 4]

2.4 Ghz

Speed: 54 MB/s

Question 6

802.11n

Answer 6

2.4 + 5 Ghz (replaced ‘a’ & ‘g’)

Speed: 400 Mb/s (100 per antenna*)

*MIMO - multiple in multiple out

Question 7

802.11ac

Answer 7

[Wifi 5]

5 Ghz only

Speed: 7GB/s (8 x MU-MIMO (NEW multiuser) channels)

Question 8

802.11ax

Answer 8

[Wifi 6]

2.4 + 5 Ghz (replaces -ac and -n)

Speed: >10 GB/s (1.2 GB/s x 8 channels)