LAN

Question 1

Host ?

Answer 1

Send and receive use traffic
Most end devices
Has IP address

Question 2

Peripheral?

Answer 2

Don’t communicate directly on the network, Rely on Host

Question 3

Network Device ?

Answer 3

Connects other devices mainly host

Question 4

Network Media?

Answer 4

Provide connection between the host and the network device.

Question 5

Network interface card ? (NIC)

Answer 5

Connect devices to network

Question 6

Parts of IP configuration?

Answer 6

IP address
Subnet Mask
Default Gateway

Question 7

DNS (Domains Name System)

Answer 7

Translates Domain name to IP Address

Question 8

Dynamic Host Configuration Protocal (DHCP)

Answer 8

It enables device to request an address from pool of address that can be assigned by DHCP.

Question 9

Criteria for Network Media ?

Answer 9

Max Distance
Environment where media will be installed
Amount of data & Speed of transmission
Cost of media and installation

Question 10

Twisted Pair Cables ?

Answer 10

Wired pair copper cable

Inexpensive and readily available

Question 11

Disadvantages of Twisted Pairs ?

Answer 11

Electromagnetic Interested (EMI) can affect throughput
Crosstalk occurs coz of  long length Cables

Question 12

Types of Twisted Pairs ?

Answer 12

Un Shielded twisted Pairs(UTP)

Shielded Twisted Pairs (STP)

Question 13

Unshielded Twisted Pairs ?

Answer 13

Inexpensive
High Bandwidth
Easy to install

Question 14

Unshielded Twisted Pairs used in ?

Answer 14

Workstation

Host and network devices

Question 15

Most common Unshielded Twisted Pairs ?

Answer 15

4 pair and has specific colours

Question 16

Shielded Twisted Pairs ?

Answer 16

Use EMI and RFI
Very expensive
Not flexible
Difficult to work with

Question 17

Co- axial Cable ?

Answer 17

Transmits Electrical Signal 
Has better shielding 
Carry more Data 
Made of Copper / aluminium
Harder to install 
More expensive
Difficult to troubleshoot

Question 18

Fibre optic Cable ?

Answer 18

Transmits Pulse of light
Used in enterprise and large data centre
Made is glass / Plastic
Suitable for place where there is interference

Question 19

How Fibre optic transmits data ?

Answer 19

One cable is used to send data

Other is used to receive data

Question 20

Parts of fibre Optic

Answer 20

Jacket 
Strength Material 
Buffer 
Cladding 
Core

Question 21

Jacket ?

Answer 21

To prevent abrasion and Moisture

Question 22

Strengthen Material ?

Answer 22

Prevents cable from Stretching

Question 23

Buffer ?

Answer 23

Shield the core and Cladding from damage

Question 24

Cladding ?

Answer 24

Acts as a mirror to reflect light back to core

Question 25

Core ?

Answer 25

Light transmission element at the centre

Made of glass / silica

Question 26

Two widely used Twisted Pairs scheme ?

Answer 26

T568A & T568B

Question 27

Wiring schene defines ?

Answer 27

Pin out

Order of wire connection

Question 28

Like device ?

Answer 28

Devices that use same pins and use crossover yo revers the order

Question 29

What command is used to test end - end connectivity ?

Answer 29

Ping Command

Question 30

What command is used to trace the path ?

Answer 30

Traceroute Command - Cisco interface

Tracert - Windows

Question 31

What is Hop?

Answer 31

Each individual network throught which data travels