Introduction to network practice exam with correct answers 100% verified.

backbone - correct answer The central core of a network, this connection can link many smaller networks to a larger network. bridge - correct answer Often called a network switch, this connects many parts of a network and directs traffic as needed. bus topology - correct answer A network layout in which there is one main trunk, or backbone, that all the various computers and network devices are connected to. client/server network - correct answer A network architecture in which each computer is either a client or a server. Servers are powerful computers dedicated to managing the clients. Clients are PCs on which users run applications. Clients rely on servers for resources. client workstation - correct answer A computer intended to be used by one person at a time. coaxial cable - correct answer A type of electrical cable often used to transmit cable TV. ethernet - correct answer The primary networking technology currently in use. Ethernet defines standards for addressing packets and data and a method for avoiding data conflicts on the network. extranet - correct answer What an organization's intranet becomes when the organization allows outsiders to access its intranet. fiber-optic cable - correct answer Cable that uses light guided through thin glass tubes, instead of electrical signals, to transmit data. It is very fast but also expensive. firewall - correct answer A piece of hardware or software on a network designed to limit access to certain machines to authorized users only. hub - correct answer A central point on a network where computers can connect. The central point is often a switch rather than a hub. intranet - correct answer A private network that looks and functions a lot like the Internet but is typically available only to the employees of an organization. local area network (LAN) - correct answer A type of network where computers are close together, typically in the same building or office. network - correct answer Two or more devices connected together, along with the equipment used to connect them. network administor - correct answer A person who manages a computer network; he or she designs the topology and adjusts the network as needed to suit the organization's needs. The network administrator may also be responsible for securing the network against attack. network architecture - correct answer The design of a computer network, which specifies how devices communicate with one another. The most common network architecture types are client/server and peer-to-peer. network interface card (NIC) - correct answer A card that enables one computer to send and receive data to and from another computer. network operating system (NOS) - correct answer A set of programs used to manage and secure a network network protocols - correct answer The rules of initiating, interrupting, and continuing communication on a computer network. node - correct answer Any sending and receiving point in a computer network. packet - correct answer The small unit into which information is broken down before being sent across a network. peer-to-peer (P2P)network - correct answer A network architecture where all computers have equal responsibilities and all computers can share files with each other. ring topology - correct answer A network layout in which two adjacent computers are connected together so that all computers in the network form a ring. Any message is sent from computer to computer until it reaches its destination. router - correct answer A device that links two computer networks or that links a local area network to the Internet. A router reads packet addresses and routes packets. server - correct answer A computer dedicated to providing one service (such as web hosting, disk storage, etc.) and that is shared by many users across a network. star bus topology - correct answer A LAN topology wherein two star networks are linked using a bus. star topology - correct answer A topology with one central node that has each computer or network device attached to the central node. All data first goes into the central node and then is sent out to its destination. (Think of it like a bicycle wheel with spokes.) switch - correct answer switch A type of hub that uses a table to keep track of destinations so that data can be sent directly to its destination, rather than to every computer on the network before the destination machine receives it. token ring topology - correct answer A network layout in which each individual node is connected to two others, with the first and last coming back to connect to each other, thus completing the ring shape. topology - correct answer The study of how items are related to one another in space; a configuration. twisted-pair cable - correct answer The most commonly used kind of networking cable today. wide area network(WAN) - correct answer A type of network where the computers are far apart—in different buildings, different cities, or even different countries. wireless communication - correct answer Data transmission that uses radio frequenci