Internet Protocol v4 Flashcards
What is IPv4?
The 4th generation of the internet protocol
How many bits in an IPv4 address?
32
Into how many octets is an IPv4 divided?
4
how many bits per octet?
8
Why is an IPv4 address divided into 4 octets?
To make it more human readable. Similar to why phone numbers are divided using parenthesis or dashes, etc.
How many IP addresses can an IPv4 address provide?
2^32, or 4,294,967,296
how does the network layer determine if an IP address exists on the same network as it does?
Using the netmask.
An IPv4 address contains two elements, what are they?
network, and host
in a CIDR address, what does the number after the / represent?
Total available number of bits that belong to the network
How is a netmask of 255.255.255.0 represented in CIDR notation?
/24
How is a netmask of 255.255.0.0 represented in CIDR notation?
/16
In binary (the language of IP addresses) what does the following translate to?
00001010
10
What does each bit in an octet represtent?
128 64 32 16 8 4 2 1
Using the binary reference, to what does the following translate?
128 64 32 16 8 4 2 1
0 1 0 0 0 1 0 0
68
Networks are divided into the types? What are they?
Class A
Class B
Class C
What is a Class A network?
255.0.0.0, or /8
What is a Claass B network?
255.255.0.0, or /16