Subnetting

A number expressed in the base 2 numerical system

Binary number

Bit is short for

Binary digits

A number expressed in the base 2 numerical system

Binary number

Bit is short for

Binary digits

A string of 8 bits

Binary term (Byte)

Base 2 Notation

Binary

Base 10 Notation

Decimal

A unique number ID assigned to one host or interface in a network

IP address

2 parts an IPv4 address can be broken up into

Network, Host ID

IPv4 addresses were based on 5 classes:

A, B, C, D, E

Class A uses the first _ bits for the network portion

8

Class B uses the first _ bits for the network portion

16

Class C uses the first _ bits for the network portion

24

What class is this:

10000000

Class B

What class is this:

00000000

Class A

What class is this:

11000000

Class C

The representation of the network portion of an address

Subnet mask

Another address that is applied to an IP address to distinguish which subnet an IP address belongs to

Subnet mask

a method of easily recognizing the number of borrowed bits from the host field

CIDR (classless inter-domain routing) notation

A computer science term used to describe applying a binary truth table to a set of parameters

Logical ANDing

How the router understands the relationship between the IP address and the applied subnet mask

Logical ANDing