Protocols

They can be sent and received regardless if the clients or server are using Windows, Macintosh or other types of platforms. The recipient uses a TCP software package to gain access to the packets. This software package scans all the packets sent and notifies the recipient if any are missing. Like HTTP, HTTPS is also responsible for sending and receiving web pages, but provides an encrypted version of HTTP for more secure web transactions. To make sure that you are safe online, you should try to use HTTPS for any webpage that has sensitive data such as usernames or passwords.

  • TCP/IP is the driving force of the Internet, and thus it is the most popular set of network protocols on Earth.
  • Note by the way that the terms “datagram” and “packet” often seem to be nearly interchangeable.
  • There is an Internet standard defining the operation of these databases, as well as the protocols used to make queries of them.

This is one of the features that makes the computer very efficient. These Product Terms will be governed by the substantive internal laws of the State of California law, without reference to conflict of laws principles. Any action filed against us in the United States based on a claim arising under, relating to, or in connection with these Product Terms must be filed in the state or federal courts located in Los Angeles County, California. As mentioned above, TCP and IP are two protocols that are used to control communication through the internet. They both work together in the TCP/IP model to ensure that all messages sent from one computer to another arrive safely.

13 Internet Communication Paradigms

For this reason, there are provisions to split datagrams up into pieces. (This is referred to as “fragmentation”.) The IP header contains fields indicating the a datagram has been split, and enough information to let the pieces be put back together. If a gateway connects an Ethernet to the Arpanet, it must be prepared to take 1500-octet Ethernet packets and split them into pieces that will fit on the Arpanet.

When a TCP connection first opens, both ends can send the maximum datagram size they can handle. The smaller of these numbers is used for the rest of the connection. This allows two implementations that can handle big datagrams to use them, but also lets them talk to implementations that can’t handle them. The most serious problem is that the two ends don’t necessarily know about all of the steps in between.

15 Designing Applications

The description above indicated that the IP implementation is responsible for getting datagrams to the destination indicated by the destination address, but little was said about how this would be done. The task of finding how to get a datagram to its destination is referred to as “routing”. In fact many of the details depend upon the particular implementation.

GCSE Computer Science AQA

If you were to meet the Queen, for example, you would be expected to follow protocol. You would be expected, for example, to call her Ma’am’ or ‘Your Majesty’. You might be expected crossgrid.org to bow and to dress appropriately as well. A set of rules that you have to follow is known as a ‘protocol’. Computers make use of protocols as well, to enable them to communicate.