Internet Protocols

What is a protocol?

A set of rules that allow computer systems to connect and transfer data.

Why are protocols important?

They enable communication between different types of devices on the Internet.

What is another name for a protocol?

A handshake - because it operates where one system meets another.

How is data transmitted over the Internet?

All data is split into packets and managed by TCP/IP.

What does TCP stand for?

Transmission Control Protocol.

What does IP stand for?

Internet Protocol.

What is the main role of TCP?

Breaking data into packets and reassembling them when they arrive.

What is the main role of IP?

Handling the routing of packets - addressing, sending, and receiving them.

Why are packets used in Internet communication?

They allow efficient and reliable data transfer across networks.

What does TCP/IP do?

Controls data traffic on the Internet by splitting and routing packets.

What happens to packets during transmission?

They may travel on different routes before being reassembled.

What is FTP?

File Transfer Protocol - used to transfer files between computers or devices.

What is FTP commonly used for?

Uploading or downloading files to and from a server.

Why does FTP require authentication?

To ensure secure file transfers between systems.

What is the relationship between TCP and IP?

TCP handles packet creation and assembly; IP handles routing and addressing.

What does addressing mean in IP?

Assigning source and destination addresses to packets for delivery.

What does packet assembly mean in TCP?

Rebuilding the original data from multiple packets at the destination.

Why is TCP/IP considered essential for the Internet?

It ensures reliable communication and data integrity across networks.

What happens if packets arrive out of order?

TCP reassembles them in the correct sequence.

Name three common Internet protocols.

TCP, IP, and FTP.