CompTIA Network+ Vocabulary

A set of standards that describes the media type and the speeds at which each type of media operates

An IEEE standard that specifies an over-the-air interface between a wireless client and a base station or between two wireless clients.

A fast, secure, but relatively expensive protocol for wireless communication. The 802.11a protocol supports speeds up to 54 Mbps in the 5 GHz frequency.

Also called WiFi, short for “wired fidelity,” 802.11b is probably the most common and certainly the least expensive wireless network protocol used to transfer data among computers with wireless network cards or between a wireless computer or device and wired LAN. The 802.11b protocol provides for an 11 Mbps transfer rate in the 2.4 GHz frequency.

A specification for wireless data throughput at the rate of up to 54 Mbps in the 2.4 GHz band that is a potential replacement for 802.11b.

A standard that adds AES security to the 802.11 standard.

A wireless standard for home and business implementation that adds QoS features and multimedia support to 802.11a and 802.11b.

An IEEE standard used to provide a port-based authentication mechanism for wireless communications using the 802.11a and 802.11b protocols.

An IEEE standard used to address the need for MAC-sub-layer addressing in bridges.

An IEEE standard used to standardize Ethernet and expand it to include a wide range of cable media.

A family of networking standards developed by IEEE.

(Address record) A DNS record that maps the host name to its IP address using a 32 bit IPv4 address.

(IPv6 address record) A DNS record that maps the host name to its IP address using a 128-bit IPv6 address.

(Alternating Current) An electrical current that switches its flow back and forth in a circuit.

In security terms, the process of determining and assigning privileges to various resources, objects, and data.