Week 1: Session 2: IP addressing

Question 1

core router

Answer 1

A high-speed router carrying traffic on the internet backbone.

Question 2

host

Answer 2

An end device on a network such as a smartphone, tablet, laptop.

Question 3

internet service provider (ISP)

Answer 3

A company that provides a domestic customer, or a business customer, with access to the internet.

Question 4

link-local address

Answer 4

An IP address allocated to a device when automatic IP allocation fails.

Question 5

loopback address

Answer 5

An IP address, such as 127.0.0.1, that simply loops back to the host device.

Question 6

private address

Answer 6

An IP address that can be used only on private networks such as LANs and home networks, not on the internet. Private addresses are only unique on their own networks.

Question 7

public addresses

Answer 7

An IP address that can be used on the public network - the internet. Public addresses must therefore be unique.