Connecting To and Setting Up a Network II Chapter 14

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Dynamic IP Address

An IP address assigned by a DHCP server for the current session only, and is leased when the computer first connects to a network. When the session is terminated, the IP address is returned to the list of available addresses. Compare with static IP address.

Half Duplex

Communication between two devices whereby transmission takes place in only one direction at a time.

Global Unicast Address

In TCP/IP version 6, an IP address that can be routed on the Internet. Also called global address.

DHCPv6 Server

A DHCP server that serves up IPv6 addresses.

File Transfer Protocol (FTP)

A TCP/IP protocol and application that uses the Internet to transfer files between two computers.

IEEE 802.11n

A Wi-Fi standard that supports up to 600 Mbps and uses 5.0-GHz or 2.4-GHz radio frequency and supports MIMO.

Domain Name System or Domain Name Service (DNS)

A distributed pool of information (called the namespace) that keeps track of assigned host names and domain names and their corresponding IP addresses. DNS also refers to the system that allows a host to locate information in the pool and the protocol the system uses.

Host Name

A name that identifies a computer, printer, or other device on a network, which can be used instead of the computer's IP address to address the computer on the network. The host name together with the domain name is called the fully qualified domain name. Also called computer name.

Domain Name

A name that identifies a network and appears before the period in a website address such as microsoft.com. A fully qualified domain name is sometimes loosely called a domain name. Also see fully qualified domain name.

IMAP4 (Internet Message Access Protocol, version 4)

A protocol used by an email server and client that allows the client to manage email stored on the server without downloading the email. Compare with POP3.

File Transfer Server

A server using the FTP or Secure FTP protocol that downloads or uploads files to remote computers.

Global System for Mobile Communication

An open standard for cellular networks and cell phones that uses digital communication of data and is accepted and used worldwide.

Gateway

Any device or computer that network traffic can use to leave one network and go to a different network.

Full Duplex

Communication that happens in two directions at the same time.

Firewall

Hardware and/or software that blocks unwanted traffic initiated from the Internet into a private network and can restrict Internet access for local computers behind the firewall.

Full Qualified Domain Name

Identifies a computer and the network to which it belongs and includes the computer name and domain name. For example, jsmith.amazon.com. Sometimes loosely referred to as a domain name.

HTTP Secure

The HTTP protocol working with a security protocol such as Secure Sockets Layer (SSL) or Transport Layer Security (TLS), which is better than SSL, to create a secured socket that includes data encryption.

Hypertext Transfer Protocol

The TCP/IP protocol used for the World Wide Web and used by web browsers and web servers to communicate.

IEEE 802.11ac

The latest Wi-Fi standard that supports up to 7 Gbps (actual speeds are currently about 1300 Mbps) and uses 5.0-GHz radio frequency and beamforming.

DNS Client

When Windows queries the DNS server for a name resolution, which means to find an IP address for a computer when the fully qualified domain name is known.


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