Bits
What does Bit stand for?
Binary Digit
Domain Name System
What is a router?
A networking device that moves data packets.
What is the internet?
a global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols.
What does IP stand for?
Internet Protocol
What are the 2 options in binary?
0 or 1
What does a DNS server do?
Connects a domain name with its corresponding IP address and send the user to the requested domain.
How do routers send data packets?
They send it to other routers that give it to other routers until it reaches the destination.
Is the Internet centralized or decentralized?
Decentralized.
What is the definition of IP address?
a unique string of numbers separated by periods that identifies each computer using the Internet Protocol to communicate over a network.
How are many bits organized?
The decimal system or base ten system.
Jon Postel
How do routers manage data packets?
They read the address of the data packet and put everything together once they have it.
What is the address for a website on the internet called?
A URL. (Uniform Resource Locator)
IPv4
How would you represent 4 in binary?
2^2
What is it called when a DNS server gets hacked?
DNS spoofing
Do all data packets get to a router in order?
No, they come all jumbled up and then become organized based on the code written on the data packet.
Vint Cerf and Robert E. Kahn.
What IP address are all devices changing to?
IPv6
How would you represent 128 bits?
2^7
What happens if a DNS server does not know the IP address of the requested domain.
It asks other DNS servers for the IP address and then once found, saves it and sends it to the user. If not found, it says "page not found".
What path do data packets take in routers?
It is random, they take many different routes to get to their destination.
How many people use the internet today?
4.5 billion people.
Why are we changing our IP address formats?
To allow for more devices to each have their own unique IP addresses.