3. Network Media and Topologies

Question 1

the TIA/EIA standard for planning, deploying, and managing the wiring of a large network

Answer 1

568 Commercial Building Telecommunication Cabling

Question 2

where the central backbone of the network connects to the external provider, such as a local exchange carrier

Answer 2

entrance facility

Question 3

this provides the main cross-connection point where horizontal cross-connects for a facility are terminated. this connects to the telco closets via the backbone wiring

Answer 3

equipment room

Question 4

this copper cable standard is rated at 10 Mbps and 16 MHz and was used in the original 10 Mbps Ethernet networks. It is sometimes still used for telephone cabling.

Answer 4

CAT 3

Question 5

this copper cable standard is rated up to 100 Mbps and 100 MHz, and is used for Ethernet cabling

Answer 5

CAT 5

Question 6

this copper cable standard is rated UP TO 1 Gbps, and is used for Gigabit Ethernet networks

Answer 6

CAT 5e

Question 7

this copper cable standard is rated AT 1 Gbps and operates a frequency of up to 250 MHz. it is used for true gigabit ethernet networks

Answer 7

CAT 6

Question 8

this copper cable standard is rated at 10 Gbps but operates at a frequency of up to 500 MHz

Answer 8

CAT 6a

Question 9

568A Pin Assignment

Answer 9

1. Green Striped
2. Green
3. Orange Striped
4. Blue
5. Blue Striped
6. Orange
7. Brown Striped
8. Brown

Question 10

568B Pin Assignment

Answer 10

1. Orange Striped
2. Orange
3. Green Striped
4. Blue
5. Blue Striped
6. Green
7. Brown Striped
8. Brown

Question 11

a cable used to connect devices to hubs and switches in which all the wires run straight through

Answer 11

straight-through cable

Question 12

a cable used to connect devices to hubs and switches in which wires 1 and 3, and 2 and 6 are crossed

Answer 12

crossover cable

Question 13

this coax connector locks by a half twist

Answer 13

BNC

Question 14

this connector screws in with a nut (TV connector)

Answer 14

F-type

Question 15

this fiber connector uses a half-twist bayonet type of lock

Answer 15

ST

Question 16

this is a fiber push-pull connector

Answer 16

SC

Question 17

this fiber connector has a flange on the top like a RJ45

Answer 17

LC

Question 18

this is a popular connector for two fiber in a very small form factor

Answer 18

MT-RJ

Question 19

this type of fiber-optic cable transmits many beams of light through the cable, thus weakening the signal and reducing the distance and speed at which it travels

Answer 19

multimode fiber

Question 20

this type of fiber-optic cable transmits a single beam of light, allowing for greater distances and transmission speed

Answer 20

single-mode fiber

Question 21

What are three common size-types of fiber optic cable?

Answer 21

1. 62.5-micron core / 125-micron cladding multimode
2. 50-micron core / 125-micron cladding multimode
3. 8.3-micron core / 125-micron cladding single-mode

Question 22

What four types of media converters are there?

Answer 22

a) Single-mode fiber —> ethernet
b) Multi-mode fiber —> ethernet
c) Fiber —> coaxial
d) Single-mode —> multimode

Question 23

What is a BSS?

Answer 23

(basic service set) all the client devices that connect to a WLAN using a particular AP

a BSS is identified by its BSSID

Question 24

What is an ESS?

Answer 24

the full group of participants in a large WLAN that includes multiple AP’s with the same SSID. it includes clients that connect to the same WLAN using different AP’s.

Question 25

What is a SSID?

Answer 25

a unique name used to identify one WLAN from another in the same area.

Question 26

This 802.11 wireless standard offers transmission over distances of 150 feet and speeds up to 54Mbps. It operates in the 2.4GHz range

Answer 26

802. 11g

- backwards compatible with 802.11b

Question 27

This 802.11 wireless standard offers transmission speeds of up to 54Mbps in the 5GHz range.

Answer 27

802.11a

Question 28

This 802.11 wireless standard offers transmission speeds of

Answer 28

802.11g