Network Hardware

Question 1

Network Interface Card

Answer 1

is a component in a device which enables it to connect to a network.

Question 1

MAC addresses

Answer 1

A unique address used to identify a device on a network, provided by the manufacturer on the NIC.

Question 2

(Media Access Control) MAC address features

Answer 2

• Unique code
• Static (does not change)
• 6 bytes / 48 bits
• First 3 pair of hex = Manufacturer ID
• Last 3 pairs of hex = Serial ID
• Uses hexadecimals
• Used to identify a device on a LAN

Question 3

IP address

Answer 3

A unique address given to each device on a network. It is provided by the network.

Question 4

(Internet Protocol) IP address Features

Answer 4

• Can be dynamic or static
• Unique address
• used to identify a device on a WAN
• It can be public or private
• Can be IPv6 or IPv4

Question 5

IPv4 Address features

Answer 5

• Denary based
• With numbers between 0 and 255
• It is 32 bits
• Four groups of denary digits
• Separated by a full stop
• Over 4.3 billion unique addresses

Question 6

IPv6 Address features

Answer 6

• Almost infinite amount of unique addresses
• 128 bit address
• Hexadecimal based
• Eight groups of four hexadecimal digits
• separated by a colon

Question 7

Private IP address features

Answer 7

• Is not accessible from the internet
• Used to identify a device within a local area network (LAN)

Question 8

Public IP addresses

Answer 8

• Used to identify a device on the internet
• Are assigned by an internet service provider (ISP)
• Are unique
• can be accessed from anywhere on the internet
• allow devices to communicate with each other across different networks

Question 9

Function of Router

Answer 9

• It connects one network to another network
• Can assign IP addresses to devices on a local network. (LAN)
• Connect a LAN to the internet (WAN)
• Analyses data packets and directs them on to their destination

Question 10

Router process

Answer 10

• a router receives incoming data packets from one network and analyses the packet header to determine the destination IP address
• It then looks up the IP address in a routing table (routing table of known networks) to determine the next network where the packet should be sent
• The router then forwards the packet to the appropriate network or device, based on most effecient path