Chapter 3

Question 1

Name three types of popular cables used in modern netwroking designs.

Answer 1

Coaxial
Twisted Pair
Fiber optic. p. 55

Question 2

What is known as the plenum of a multi story office building?

Answer 2

The space between the ceiling of one floor and the floor of the next floor. p. 56

Question 3

What is another name for Thin Ethernet?

Answer 3

thinnet or 10Base 2 or RG 58 p. 56

Question 4

True or false: if you use a thinnet cable you must use BNC connectors to attach stations to the network.

Answer 4

True p .57

Question 5

what RG rating is a thicknet (or 10 base 5) ?

Answer 5

RG-8 p. 57

Question 6

What are the two types of RG ratings we use today?

Answer 6

RG-59 and RG-6 p. 57

Question 7

What is RG 6 cable used for?

Answer 7

Cable television/Cable modems. p. 58

Question 8

what is an advantage of using coax cable?

Answer 8

The braided sheilding provides resistance to EMI, RFI and other types of stray electronic signals. p. 58

Question 9

what networks are unshielded twisted pair cabling used?

Answer 9

10BaseT, 100 BaseTX, 1000 Base TX networks. p. 58

Question 10

How fast is the transmission speed of a network that runs on 100 Base TX?

Answer 10

100 Mbs. p. 58

Question 11

why are cables in a twisted pair twisted?

Answer 11

Because when electromagnetic signals are conducted on copper wires in close proximity like inside a cable it causes interference called crosstalk. Twisting them minimizes interference p. 58

Question 12

True or false: Fiber optic cable is immune from EMI and RFI.

Answer 12

True

Question 13

True or false: Single mode fiber can run at longer lengths than multimode.

Answer 13

True

Question 14

what are the two most popular fiber optic connectors?

Answer 14

Straight tip and subscriber connector p. 63

Question 15

What is an advantage of the small form factor connector?

Answer 15

allows more fiber optic terminatiosn in the same abount of space than the standard sized connector. p. 63

Question 16

True or false: Fiber optic is more secure than twisted pair.

Answer 16

True

Question 17

true or false: all network communications technologies are prone to attenuation.

Answer 17

True

Question 18

Describe half duplex communication

Answer 18

when a device can only send or recieve communication. p. 71

Question 19

Describe full duplex communicaiton

Answer 19

When a device can send/recieve communication p. 71

Question 20

what are some different types of wiring standards available?

Answer 20

568A
568B
Straight through
Cross over p. 72

Question 21

what is the main distribution frame (MDF)?

Answer 21

a wiring point thats generally used as a reference point for telephne lines. p. 79

Question 22

define demarc.

Answer 22

the last point of responsibility of the service provicder. p. 79

Question 23

what is a smart jack?

Answer 23

also known as an network interface device and it is a special netwrk interface that is used between the service providers network and the internal network. p. 80

Question 24

How much data flow can a catagory 6 cable handle?

Answer 24

1Gbs. p .72

Question 25

what are some advantages of working with twisted pair cableing?

Answer 25

Cheap
easy to work with
p. 59