Chapter 18 - Essentials of Networking

Question 1

LAN stands for what?

Answer 1

Local Area Network

Question 2

Ethernet

Answer 2

The most common type of networking. Defines what kind of cable, hubs and speeds. And data into 1500 bytes.

Question 3

Frame is what?

Answer 3

a 1500 byte block of data.

Question 4

What does MAC stand for?

Answer 4

Media Access Control or MAC address. 48-bit address that manifest into 12-hexadecimal characters. That uniquely identifies a host on a LAN.

Question 5

Every Network card gets what?

Answer 5

A unique MAC address.

Question 6

What is a Network Card’s OEM ID?

Answer 6

The first six characters of it’s 12-hexdecimal MAC address.

Question 7

Switches vs Hubs

Answer 7

Switches work a lot better than hubs. Switches are most common today.

Question 8

Switches and Hubs are what?

Answer 8

Are both repeaters but switches are smart repeaters that only sends data out to the proper destination based on the MAC address.

Question 9

Hubs

Answer 9

are repeaters that repeat all traffic on the LAN to all nodes

Question 10

Switches

Answer 10

Are repeaters that filter traffic based on MAC address. And provide full bandwidth for all nodes. Which can connect up to 1024 computers in a LAN.

Question 11

Hexadecimal

Answer 11

A short hand in the form of 16 numbering system to talk about binary code.

Question 12

Each character of Hexadecimal represents what?

Answer 12

a 4 number binary combination

Question 13

In hex number is what?

Answer 13

0-9 and A-F, for 0-15.

Question 14

WAN stands for what?

Answer 14

Wide Area Network.

Question 15

Router

Answer 15

Connects multiply LAN switches together into a WAN. That use Logical addressing (IP) to determine local vs. remote traffic.

Question 16

Logical Addressing

Answer 16

Address for LAN network. or more known as an IP address.

Question 17

Every computer has what two addresses?

Answer 17

A MAC address and an IP address.

Question 18

DOCSIS is used for what?

Answer 18

Used for cable modems.

Question 19

Coaxial Cable

Answer 19

connectors are axial. which uses RG ratings

Question 20

RG-58

Answer 20

Oldest, very thin coaxial cable, which had BNC connectors

Question 21

RG-6

Answer 21

Most Common for video and networking

Question 22

RG-59

Answer 22

Most common for video and networking

Question 23

F-Type connectors

Answer 23

Are threaded connectors.

Question 24

Twisted Pair

Answer 24

is more common over coaxial .

Question 25

UTP stands for what?

Answer 25

Unshielded Twisted Pair(UTP).

Question 26

RJ-11

Answer 26

old telephone connector.

Question 27

types of Twisted Pair cabling

Answer 27

RJ-45(common today), RJ-11(old used for telephones).

Question 28

STP stands for what?

Answer 28

Shielded Twisted Pair(STP).

Question 29

Fiber Optic Cable

Answer 29

Doesn’t use electricity it uses light.

Question 30

Kinds to propagate a light signal?

Answer 30

Multimode(LED), and Singlemode(uses lasers).

Question 31

Cat(Category) ratings.

Answer 31

Are different types of unshielded twisted pair used to carry more information

Question 32

Types of CAT ratings are?

Answer 32

CAT5(100 Mbps), CAT 5e(1Gbps), CAT 6(1Gbps up to 100 meters, 10 Gbps up to 55 meters), CAT 6a(10 Gbps at 100 meter segments).

Question 33

Plenum ratings

Answer 33

Plastic heat rating, three ratings, PVC(non-plenum),

Question 34

TIA 568A and TIA 568B

Answer 34

standards for crimping cables

Question 35

Straight-Through cable

Answer 35

Has the same standard on each end

Question 36

Crossover Cable

Answer 36

Has different standards on each end.

Question 37

110 punchdown tool

Answer 37

tool that allows you to punchdown network cables onto a rack(patch panel).

Question 38

Fox and Hound

Answer 38

Fox(tone generator) and hound(tone probe).

Question 39

TDR stands for what?

Answer 39

Time Domain Reflectometer(TDR). uses speed of light to detect how long a cable is.

Question 40

Types of UTP

Answer 40

Solid core goes into the wall, with a solid piece of copper. Patch cables use Stranded and is flexible.