| Match the definitions on the left with the words they denote on the right. | 1. A group of computers and other devices dispersed over a relatively limited area and connected by a communications link that enables any device to interact with any other on the network.
| a. Network
| | 2. A device capable of forwarding packets directly to the ports associated with particular network addresses.
| b. Nod
| | 3. An expansion card or other device used to provide network access to a computer or other device, such as a printer.
| c. Switch
| | 4. A geographically widespread network, one that relies on communications capabilities to link the various network segments.
| d. Backbone
| | 5. Transmission between a single sender and a single receiver over a network.
| e. Topology
| | 6. In networking, a device, such as a client computer, a server, or a shared printer, that is connected to the network and is capable of communicating with other network devices.
| f. LAN
| | 7. The wires that carry major communications traffic within a network.
| g. WAN
| | 8. Sending a message simultaneously to more than one destination on a network.
| h. Network Interface Card
| | 9. The configuration or layout of a network formed by the connections between devices on a LAN or between two or more LANs.
| i. Medium
| | 10. In communications and on networks, a message distributed to all stations.
| j. Unicast
| | 11. A group of computers and associated devices that are connected by communications facilities.
| k. Multicast
| | 12. A substance in which signals can be transmitted, such as a wire or fiber-optic cable.
| l. Broadcast
| 8. Translate these passages in writing:
a) There are many different types of switches and networks. Switches that provide a separate connection for each node in a company's internal network are called LAN switches. Essentially, a LAN switch creates a series of instant networks that contain only the two devices communicating with each other at that particular moment.
b) Information sent from a node travels along the backbone until it reaches its destination node. Each end of a bus network must be terminated with a resistor to keep the signal that is sent by a node across the network from bouncing back when it reaches the end of the cable.
c) In a ring network, each node takes a turn sending and receiving information through the use of a token. The token, along with any data, is sent from the first node to the second node, which extracts the data addressed to it and adds any data it wishes to send.
Date: 2015-01-02; view: 1042
|
