IP & MAC Addresses | 3.2 | OCR GCSE Computer Science | J277

7 flashcards

IP address

A string of numbers assigned to a device so it can be located across a network.

What do routers use IP addresses for?

To route data across the internet and ensure that information reaches the correct network.

IPv4

- Uses a 32-bit address, represented in denary. - 4 8-bit segments of denary values (0-255), separated by full stops.

IPv6

- Uses a 128-bit address, represented in hexadecimal. - 8 16-bit segments of 4 hexadecimal values (0000-FFFF), separated by colons.

Why were IPv6 addresses invented?

As the internet grew, IPv4 addresses began to ran out.

Media Access Control (MAC) Address

A unique physical address assigned to each device's NIC.

MAC Address details

- Uses a 48-bit address, made up of 6 8-bit hexadecimal pairs (00-FF), - Separated by dashes or sometimes, colons.