Network+ (Chapter 7)
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Internet Control Message Protocol (ICMP)
Protocol in which messages consist of a single packet and are connectionless. ICMP packets determine connectivity between two hosts.
Transmission Control Protocol(TCP)
Part of the TCP/IP protocol suite, operates at Layer 4 (Transport) of the OSI seven-layer model. TCP is a connection-oriented protocol.
User Datagram Protocol (UDP)
A protocol used by some older applications, most prominently TFTP(Trivial FTP), to transfer files, UDP datagrams are both simpler and smaller than TCP segments, and they do most of the behind-the-scenes work in a TCP/IP network.
HTTP (Hypertext Transfer Protocol)
Extremely fast protocol used for network file transfers on the World Wide Web.
Address Resolution Protocol (ARP)
A protocol in the TCP/IP suite used with the command-line utility of the same name to determine the MAC address that corresponds to a particular IP address.
Classless Inter-Domain Routing (CIDR)
Method of categorizing IP address in order to distribute them.
Basic component of communication over a network. A group of bits of fixed maximum size and well-defined format that is switched and transmitted as a complete whole through a network. It contains source and destination address, data, and control information.
Taking a single class of IP addresses and chopping it into multiple smaller groups.
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