Chapter 3

Question 1

What is a topology?

Answer 1

-way of connecting computers together

Question 2

What is the mesh formula?

Answer 2

of connections you need to connect computers when y= # of computers and # of connections = y(y-1)/2

Question 3

Describe RG-6

Answer 3

Predominant coax cable for networking.

Question 4

Describe RG-59.

Answer 4

Primary cable for cable television.

Question 5

Describe CAT 6.

Answer 5

max freq: 250 Mhz

Max band: 10 Gbps

Question 6

Describe CAT 5e.

Answer 6

max freq 100 Mhz, max band 1 Gbps

Question 7

Describe CAT 3.

Answer 7

Max freq 16 Mhz, max band 16 mbps

Question 8

What is the wavelength of multimode fiber?

Answer 8

850 nm

Question 9

What is the wavelength of single-mode fiber?

Answer 9

1310nm or 1550nm

Question 10

What is ST connector?

Answer 10

Stick and twist, round connector.

Question 11

What is SC?

Answer 11

Stick and click connector.

Question 12

What is LC?

Answer 12

Little Connector(duplex)

Question 13

What is firewire?

Answer 13

high speed serial, IEEE 1394, point to point, 800 Mps can’t network with vista or windows 7

Question 14

What is serial?

Answer 14

DB-9, 56,000 bps

Question 15

What is a parallel connectoin?

Answer 15

2 Mbps, 25 pin female; IEEE 1284

Question 16

What is PVC?

Answer 16

Polyvinyl chloride; has no significant fire protection.

Question 17

What is plenum?

Answer 17

creates less smoke and fumes when burnt. costs 3-5 times more than PVC

Question 18

What is riser cable?

Answer 18

used for vertical runs between floors of a building.

Question 19

What is IEEE 802 working group?

Answer 19

Sets standards for networking

Question 20

What is 802.3?

Answer 20

-ethernet

Question 21

What is 802.11

Answer 21

wireless LAN