IEEE standards

Question 1

802.1Q

Answer 1

Standard that defined virtual LANs (VLANs) on Ethernet networks.

Question 2

802.3af

Answer 2

Power delivered over Ethernet (PoE)

Provides up to 15.4W of DC power
Minimum of 44V DC and 350mA

Question 3

802.3at

Answer 3

PoE+

25.5W of power

Question 4

802.11

Answer 4

Wireless LANs

Question 5

802.11a

Answer 5

5ghz

54Mbps / 6.75MBps

Question 6

802.11b

Answer 6

2.4GHz
11Mbps
30 Meters

Question 7

802.11g

Answer 7

2.4GHz

54Mbps

Question 8

802.11n

Answer 8

2.4 OR 5 GHz

600Mbps

Question 9

802.11ac

Answer 9

5. 8GHz

6. 93Gbps

Question 10

100BASE-TX

Answer 10

100Mbps
“Fast Ethernet”
Cat5 or better twister copper
Two pair
Max length of 100 meters

Question 11

1000BASE-T

Answer 11

Gigabit ethernet over cat5 (cat5e) or better
Use all 4 pairs
100 meters

Question 12

1000BASE-SX

Answer 12

Gigabit ethernet using Near Infrared light
Usually over multimode fiber
220-500 meters depending on fiber type

Question 13

1000BASE-LX

Answer 13

Gigabit using long wavelength laser
Multimode fiber up to 550m
Singlemode fiber up to 5km

Question 14

10GBASE-T

Answer 14

Frequency up to 500 MHz
Twister pair copper
Cat6 up to 55 meters
Cat6a - 100m
Cat7a - 100m and shielding

Question 15

802.1x

Answer 15

Defines process for protected authentication for secure network access