CCENT Chapter 1 Terms

The total throughput capacity of a network link or segment.

a single binary digit, either a 0 {off} or 1 {on}

A device used to connect two LAN's or segments of a LAN, so communication is possible without a router. Bridges can connect only networks running the same protocol.

A set of all devices receiving broadcast frames originating from any device within the set – for example, all devices in a VLAN.

a type of network design in which all devices are connected to central cable.

Eight binary bits. There are 256 unique combinations, from 00000000 to 11111111 {0 to 255 in decimal.}

A section of the network where nodes compete for access to same physical transmission medium. This conflict often results in a frame sent by one node's NIC colliding with a frame sent by another NIC in the same collision domain.

The capability of a communications device to concurrently send and receive data.

The capability for data transmission between sending and receiving stations in both directions, but only one at a time.

A _________ is a computer connected to the network.

A device that serves as a common connection point for multiple devices on a network. It receives signals and forwards them to all the devices connected to it.

An ___________ is a numeric identifier that represents a computer or device on a TCP/IP network.

A _______ is a computer network confined to a relatively small area such as a single floor, building, or campus.

a unique 48–bit identifier written as 12 hexadecimal characters grouped in pairs and hard–coded in the NIC.

A LAN covering multiple buildings where the building–to–building links are owned and controlled by a service provider, usually because of public streets and spaces separating the buildings.

a physical environment through which signals pass.

network topology in which each node on the network has a connection to every other node on the network.

A __________ is two or more computers connected together to share resources.

Four binary bits from 0000 to 1111 {0 to 15}. It is used in hexadecimals.

Adapter that provides the physical connection to send and receive data between the computer and the network media.

A __________ is defined as any device that connects to the network that has a recognized address.

a formal set of rules describing data transmission, especially across a network.

a set of related communications protocols operating as a group to address communication at some or all of the seven layers of the OSI Reference Model.

a networking configuration where all nodes are connected in a circle with no terminated ends on the cable.

A device that receives and sends data packets between two or more networks.

Devices and connection that can send data in only one direction. a sensor circuit is an example

a network layout where each node on the network is connected to a center hub.

Shielded Twisted Pair Cabling

A Layer 2 device typically containing numerous ports for node connections that filters and forwards packets between LAN segments.

The rate of successful data delivery over a communication channel.

the configuration or layout of the wiring of a network.

A commonly used, inexpensive, and relatively low–speed transmission medium consisting of two insulated wires wound about one another. The wires can be shielded or unshielded.

Device or interface that translates the light signals on the fiber to electrical signals for copper cabling and vice versa.

Unshielded Twisted Pair Cabling

Two or more LANs connected by a link across a large geographical area.