| A | B |
|---|
| CIDR | used to avoid assigning entire addresses of a particular class to networks that didn't have that many hosts |
| Router | A __________ is a device that connects one network to another |
| Ping | command used to test network connectivity between two hosts |
| Network | layer of the OSI model on which IPv4 Addressing is included |
| Firewall | a software routine that acts as a virtual barrier between a computer and the network to which it is attached |
| Ports | codes that identify specific applications running on the system |
| Protocols | __________ are the rules or languages in which networking is possible |
| NAT | What a corporation would use to allow private IPv4 addresses to communicate with the Internet |
| Unicast | type of address defines a single network interface in a computer or other device |
| Connection-oriented | A communication protocol used in data networking in which two communicating systems establish a connection before they transmit any data. |
| socket | The combination of an IP address and a port number, expressed using the format |
| UTP | A type of cable consisting of a number of wire pairs, each individually twisted and all enclosed in a sheath |
| datagram | A data structure generated by a network layer protocol such as Internet Protocol, consisting of transport layer data with a header containing an IP address and other communications information |
| frame | A data structure generated by a data link layer protocol such as IEEE 802.3, consisting of network layer data with a header and a footer containing a MAC address and other communications information |
