Networking

Question 1

NIC

Answer 1

provides ethernet connection to the network

Question 2

hub

Answer 2

has between 4 and 48 ports using a wired copper connection

Question 3

switch

Answer 3

smart hubs that remember ports that are connected to them
- can have multiple people talking at once
- increases security
- unmanaged and managed

Question 4

wireless access point

Answer 4

device that allows wireless devices to connect to a wired network
- wifi

Question 5

router

Answer 5

connects different networks together using IP address

Question 6

patch panel

Answer 6

device that allows cable network jacks from a wall into a central area

Question 7

802.3af

Answer 7

power over ethernet
- least amount of power drawn

Question 8

802.3at

Answer 8

PoE+
- allows power devices to draw up to 25W

Question 9

802.3bt

Answer 9

power of up to 51W or 73W

Question 10

what you need for PoE

Answer 10

1. power device that supports it
2. proper cabling
3. power device to use the data

Question 11

power injector

Answer 11

plugs into wall outlet to get power

Question 12

cable modem

Answer 12

device that translates coaxial cable signals into radio frequency waves

Question 13

PAN

Answer 13

smallest type of network
- 10 feet
- bluetooth

Question 14

local area network

Answer 14

components within limited distance
- 100 m with cat5 cabling, little more if you use optic

Question 15

CAN (campus)

Answer 15

building centric LAN spread across area
- up to a few miles

Question 16

MAN

Answer 16

• metropolitan
• connects scattered locations
• up to 25 miles

Question 17

WAN

Answer 17

• connects geographically disparate internal networks
• worldwide
• internet

Question 18

WLAN

Answer 18

• wireless LAN
• home wifi

Question 19

SAN

Answer 19

• storage
• access to configurable pools of storage used in app servers
• iSCSI, fiber channel

Question 20

SoHO LAN

Answer 20

centralized server or provides clients access to local devices like printers, file storage, internet connection

Question 21

UTP

Answer 21

unshielded twisted pair cable
- cheaper
- all plastic except copper wires

Question 22

STP

Answer 22

• shielded
• more expensive
• less EMI interference

Question 23

RJ45

Answer 23

• most common
• plastic 8 pin connector
• data networks

Question 24

RJ11

Answer 24

• registered jack
• 6 pin connector
• only 2 pins used
• phone systems/landlines

Question 25

bandwidth

Answer 25

theoretical measure of how much data could be transferred

Question 26

throughput

Answer 26

actual measure of data transferred

Question 27

Cat5

Answer 27

- 100 base tx - fast ethernet - 100 mbp - 100 m

Question 28

Cat5e

Answer 28

- 1000 base t - 1000 mbp - 100 m

Question 29

cat 6

Answer 29

1000 base T - 10 Gbps 100- 55 m

Question 30

cat 6a

Answer 30

10G base - 10 gbps - 100 m

Question 31

cat 7

Answer 31

- 10 G base T - 10 gbps

Question 32

cat 9

Answer 32

- 40 G based - 40 gbps - 30 m

Question 33

plenum cables

Answer 33

ceilings, walls, raised floors, air ducts

Question 34

fiber optic cable

Answer 34

uses light to transmit information through thin glass fiber - go long distances - greater data capacity

Question 35

single mode

Answer 35

used for longer distances and has smaller core size

Question 36

coaxial cable

Answer 36

copper media still used in networking today

Question 37

wire mapping tool

Answer 37

works like cable tester for twisted pairs

Question 38

punch down block

Answer 38

terminates wires and strips off excess insulation

Question 39

crimper

Answer 39

tool used to attack RJ45 plastic connected to UTP or STP