Protocols - Content Flashcards
What are protocols?
The rules that define methods of communicating data between two or more digital advices.
They ensure that the transmission of data always follows a set procedure.
What is the TCP/IP protocol?
It stands for transmission control, protocol, and Internet protocol.
It is used together as the basic communication language of the Internet.
How does the TCP/IP protocol work?
It is used to create packets of data that are sent over the Internet in order to be more efficient.
Each packet is sent individually and then reassembled at the destination.
How does the data get to the intended computer with TCP/IP?
IP is used to route packets to the intended computer, using the computer’s IP address.
What protocols do emails use?
– Simple mail transfer protocol (SMTP)
– post office protocol 3 (POP3)
– Internet message access protocol (I MAP)
What does the simple mail transfer protocol do?
It is used to transfer emails between mail servers. It is also used to transfer emails from the client software to the outgoing mail server.
What does the post office protocol 3 do?
It is used to retrieve emails from the mail server.
It allows us to download messages to our client software for offline reading.
What does the Internet message access protocol do?
It is used to receive emails from the mail server. Rather than downloading the messages, IMAP syncs them with the mail server.
What protocols to voice and video calls use?
-H.323
-Session initiation protocol (SIP)
-Real-time Transport Protocol (RTP)
What does the H.323 do?
It’s defined the rules for communicating audio and video over packet switched networks.
What does the session initiation protocol do?
It is used to create, control and and connections.
What does the real-time transport protocol do?
It is used to transfer audio and video over IP based networks.
What protocols do webpages use?
- Hypertext transfer protocol (HTTP)
– HTTPS
– file transfer protocol (FTP)
What does the hypertext transfer protocol do?
It is used to allow web servers and browsers to transfer files over the Internet. It is how we access the World Wide Web.
HTTPS the secure version of the standard HTTP. It uses public key cryptography to encrypt communications between a web browser and server.
What does the file transfer protocol do?
It is used to transfer files over a network. It is the technology used to upload files to a server and to download large files.
