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Ch 17 Sec 2
Vocabulary
| Question | Answer |
|---|---|
| default gateway | The gateway a computer on a network will use to access another network unless it knows to specifically use another gateway for quicker access to that network. |
| DHCP (Dynamic Host Configuration Protocol) | A protocol used by a server to assign dynamic IP addresses to computers on a network when they first access the network. |
| DNS (Domain Name System or Domain Name Service) | A distributed pool of information (called the name space) that keeps track of assigned host names and domain names and their corresponding IP addresses, and the system that allows a host to locate information in the pool. |
| DNS Server | A computer that can find an IP address for another computer when on;y the fully qualified domain name is known. |
| domain name | A unique, text-based name that identifies a network. A fully qualified domain name is sometimes loosely called a domain name. |
| dynamic IP address | An assigned IP address that is used for the current session only. When the session is terminated, the IP address is returned to the list of available addresses. |
| Fast Ethernet Fiber Distributed Data | An Ethernet standard that operates at 100Mbps and uses twisted-pair cabling up to 100 meters (328 feet). |
| fiber optic cable | Cable that transmits signals as pulses of light over glass strands inside protected tubing. |
| full duplex | Communication that happens in two directions at the same time. |
| fully qualified domain name (FQDN) | A host name and a domain name such as jsmith.amazon.com. Sometimes loosely referred to as a domain name. |
| gateway | A computer or other device that connects networks. |
| Gigabit Ethernet | A version of Ethernet that supports rates of data transfer up to 1 gigabit per second. |
| half duplex | Communication between two devices whereby transmission takes place in only one direction at a time. |
| hardware address | A 48-bit hardware address unique to each NIC card or onboard network controller and assigned by the manufacturer. The address is often printed on the adapter as hexadecimal numbers. |
| host | Any computer or other device on a network that has been assigned an IP address. Also called node. |
| host name | A name that identifies a computer, printer, or other device on a network. The host name together with the domain name is called the fully qualified domain name. |
| Hosts file | A file in the C:\Windows\System32\ drivers\etc folder that contains computer names and their associated IP addresses on the local network. The file has no file extension. |
| hub | A network device or box that provides a central location to connect cables and distributes incoming data packets to all other devices connected to it. Compare to switch. |