4.9.4 TCP/IP Flashcards
What are the two parts of an IP address?
- Network Identifier
* Host identifier
How are network identifiers shared?
Each of the computes in a network shares the same network identifier but has its own host identifier.
What are subnets?
A subnet is a logical partition of an IP network into multiple, smaller network segments
What are the network identifiers of subnets?
Each subnet has a different network identifier.
How can the network identifier part of an IP address be determined?
With a subnet mask.
What is a subnet mask?
A Subnet mask is a 32-bit number that masks an IP address, and divides the IP address into network address and host address.
How is a subnet mask made?
A Subnet Mask is made by setting network bits to all “1”s and setting host bits to all “0”s.
GOOGLE HOW SUBNET MASKS WORK
What happens if the number bits assigned to the network identifier part is increased?
The more different subnets a network can have.
What happens if the number of bits assigned to the host identifier is increased?
The more different devices can be connected simultaneously.
What are the two types of IP address in common use?
Versions four and six
What are IPV4 addresses?
IPV4 addresses are dotted quad numbers.
What does it mean for IPV4 addresses to be dotted quad numbers?
- They consist of four parts that are separated by dots.
- Each of the four parts of an IPv4 address is assigned one byte ( eight bits ) allowing for numbers from 0 to 255 to be represented
What range of numbers does IPV4 represent?
Allows for numbers from 0 to 255 to be represented.
How many IP addresses can be represented by IPv4?
A total of slightly over 4 billion unique IPv4 addresses.
What is an issue with IPv4?
- Addresses are in short supply.
- Number of devices on the internet that require a routable IP address is increasing so rapidly that a new version of IP address has to be created ( IPv6)
