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Flashcards in Chapter 3 - Sheet1 Deck (60)
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1

Name two types of cables used in today's networks

Twisted pair, fiber optic

2

Name a type of cable mostly not used in today's network, and when they are used.

Coaxial -- still used to connect to cable modems

3

Name the type of end used for Coax

BNC

4

Name the type of end used for twisted-pair

RJ-11 for voice, RJ-45 for data

5

Which pins aren't used in 568A or 568B standard?

4, 5, 7, and 8

6

ST

Straight Tip

7

SC

Subscriber Connector OR Square Connector

8

Name the two most popular versions of the small form factor fiber-optic connectors (SFF)

Mechanical Transfer Registred Jack (MT-RJ), Local Connector (LC)

9

Why would you need a T1 crossover cable?

To connect two CSU/DSUs

10

What pins connect to what pins in a straight-through calbe?

1->1, 2->2, 3->3, 6->6

11

Picture of ST

ST

12

Picture of SC

SC

13

Picture of LC Fiber-Optic

LC Fiber-Optic

14

Picture of MT-RJ

MT-RJ

15

Most widely used fiber-optic connectors

Straight-tip (ST)

16

LC

Local Connector

17

MT-RJ / MTRJ

Mechanical Transfer Registred Jack

18

Name the media converters available

single mode fiber to Ethernet, multimode fiber to Ethernet, fiber to coaxial, and single mode to multimode fiber.

19

What is a 568A to 568A cable?

Straight-through cable. Connects hosts to switches or hubs

20

What is a 568A to 568B cable?

Crossover cable. Connects switches to switches, hosts directly to hosts.

21

CSU/DSU

A Modem. Channel service unit/data service unit

22

Describe a T1 crossover cable

568B crossover that connects pins 1, 2, 4, and 5 to 4, 5, 1, and 2, respectively.

23

Describe why you need a T1 crossover cable

In rare instances, you may have the need to run a cable between two CSU/DSUs

24

Describe the operation of Broadband over Power Line

BPL allows for the transmission of data over existing power lines, both for networking home computers and for receiving Internet access to a building.

25

How many lines and twisted pairs are there in the 568A and 568B standards

8 lines divided into 4 twisted pairs

26

When would you use a straight-through cable?

connect a host to switch/hub, connect a router to a switch/hub

27

When would you use a crossover cable?

Switch to switch, hub to hub, host to host, router to direct host

28

Which pairs and colors are swapped between 568A and 568B standards

Pairs 2 and 3 (orange and green)

29

Which UTP wiring uses four twisted wire pairs (eight wires) and is rated for 250MHz?

Cat 6 UTP

30

The point at which the operational control or ownership changes from your company
to a service provider is referred to as ___________________.

Demarc (Short for Demarcation), or point of demarc