Essay about Definitions: Internet Control Message Protocol

Submitted By ttaylor1958
Words: 700
Pages: 3
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June 26,2013 NET 1135
Definitions
FRAM
In the computer world, a frame can be many different things. The different definitions of "frame" are listed below:
1. Some Web sites use HTML frames, where the pages are broken up into various areas. Each area consists of an independent Web page. Frames allow the multiple Web pages to all show up in the same page.

2. Graphics and desktop publishing programs also use frames. In these programs, frames are rectangular areas meant for inserting graphics and text. They allow users to place objects wherever they want to on the page.

3. In video and animation, frames are individual pictures in a sequence of images. For example, a Flash movie you see on the Web may play 12 frames per second, creating the appearance of motion. Most video is shot at 24 or 30 frames per second, or FPS. FPS is often measured in 3D games as a way of checking how fast the graphics processor of a computer is.

PACKET

A packet is one unit of binary data capable of being routed through a computer network. To improve communication performance and reliability, each message sent between two network devices is often subdivided into packets by the underlying hardware and software.

DATAGRAM

A datagram is a basic transfer unit associated with a packet-switched network in which the delivery, arrival time, and order of arrival are not guaranteed by the network service.

TCP A protocol developed for the internet to get data from one network device to another; "TCP uses a retransmission strategy to insure that data will not be lost in transmission"
UDP
UDP (User Datagram Protocol) is a communications protocol that offers a limited amount of service when messages are exchanged between computers in a network that uses the Internet Protocol (IP). UDP is an alternative to the Transmission Control Protocol (TCP) and, together with IP, is sometimes referred to as UDP/IP. Like the Transmission Control Protocol, UDP uses the Internet Protocol to actually get a data unit (called a datagram) from one computer to another. Unlike TCP, however, UDP does not provide the service of dividing a message into packets (datagrams) and reassembling it at the other end. Specifically, UDP doesn't provide sequencing of the packets that the data arrives in. This means that the application program that uses UDP must be able to make sure that the entire message has arrived and is in the right order. Network applications that want to save processing time because they have very small data units to exchange (and therefore very little message reassembling to do) may prefer UDP to TCP. The Trivial File Transfer Protocol (TFTP) uses UDP instead of TCP
ARP
Address Resolution Protocol (ARP) is a low-level network protocol for translating network layer addresses into link layer addresses.

ARP lies between layers 2 and 3 of the OSI model, although ARP was not included in the OSI framework and allows computers to introduce each other across a network prior to communication.
ICMP
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