- What is a protocol?
- What is an Internet Protocol (IP) address?
- How is it organized hierarchically?
- How many bits are in an IPv4 address?
- How many IPv4 addresses does that mean there are?
- What is the difference between IPv6 and IPv4.
- Why do we need IPv6?
- What is an IP packet?
- What is the difference between an IP address and an IP Packet?
- What is the purpose of the Domain Name System (DNS)?
1. A protocol is a system of rules that is agreed upon by a set of people for how to deal in a situation
2. A IP address is a number that is unique to each computing device and it is how it can receive information. It is similar to a mailing address because in order for a server to send info it needs this number to assure it is going to the right device
3. They are organized in bits, the first bits are country/network, then region/network, then sub network, and finally device.
4. An IP address is 32 bits
5.4 billion addresses
6. IPv6 contains 128 bits rather than the 32 of IPv4
7. IPv6 is important because the internet is so much more popular than ever believed and IPv4 only offered 4 billion combinations which is not enough.
8. A packet is like a package of mail that is containing the information needed to load something on your device
9. Packets are sent to IP Addresses
10. The DNS connects names of destinations that we know like Wikipedia and matches them with their IP address so we do not have to memorize the IP address to get to that website.