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Across
  1. 3. is a new, extended version of NetBIOS, the program that lets computers communicate within a local area network.
  2. 6. duplex Refers to the transmission of data in two directions simultaneously. For example, a telephone is a full-duplex device because both parties can talk at once.
  3. 7. a device used to connect two different networks, especially a connection to the Internet.
  4. 8. a computer or device on a network that manages network resources. There are many different types of servers
  5. 11. AppleTalk was a proprietary suite of networking protocols developed by Apple Inc. for their Macintosh computers.
  6. 12. pair cable Twisted pair cabling is a type of wiring in which two conductors of a single circuit are twisted together for the purposes of canceling out electromagnetic interference (EMI) from external sources
  7. 13. (of a device) able to be attached to and used with a computer, though not an integral part of it.
  8. 14. A repeater is a network device that is used to regenerate or replicate signals that are weakened or distorted by transmission over long distances and through areas with high levels of electromagnetic interference (EMI).
  9. 15. a desktop computer terminal, typically networked and more powerful than a personal computer.
  10. 17. server a mail transport agent, a mail router or an Internet mailer) is an application that receives incoming e-mail from local users.
  11. 20. rate is the unit for symbol rate or modulation rate in symbols per second or pulses per second.
  12. 21. network A computer network in which one centralized, powerful computer (called the server) is a hub to which many less powerful personal computers or workstations (called clients) are connected.
  13. 24. A node is a basic unit used in computer science. Nodes are devices or data points on a larger network
  14. 26. is a networking device that forwards data packets between computer networks.
  15. 27. a high-capacity transmission technique using a wide range of frequencies, which enables a large number of messages to be communicated simultaneously.
  16. 30. Simplex refers to one-way communications where one party is the transmitter and the other is the receiver.
  17. 31. a range of frequencies within a given band, in particular that used for transmitting a signal.
  18. 33. a set of guidelines for implementing networking communications between computers
  19. 35. server is a device that connects printers to client computers over a network
  20. 36. topology Star networks are one of the most common computer network topologies.
  21. 38. cable is a type of cable that has an inner conductor surrounded by a tubular insulating layer, surrounded by a tubular conducting shield.
Down
  1. 1. a central airport or other transport facility from which many services operate.
  2. 2. duple allowing the transmission of signals in both directions but not simultaneously.
  3. 4. Baseband refers to the original frequency range of a transmission signal before it is converted, or modulated, to a different frequency range.
  4. 5. server a device which controls access to separately stored files, as part of a multi-user system.
  5. 6. protect (a network or system) from unauthorized access with a firewall.
  6. 9. backup a backup, or the process of backing up, refers to the copying and archiving of computer data so it may be used to restore the original after a data loss event.
  7. 10. Decryption is the process of taking encoded or encrypted text or other data and converting it back into text that you or the computer can read and understand.
  8. 13. network A network of computers configured to allow certain files and folders to be shared with everyone or with selected users.
  9. 16. transmission Data transmission is the process of sending digital or analog data over a communication medium to one or more computing, network, communication or electronic devices.
  10. 18. area network a computer network in which the computers connected may be far apart, generally having a radius of more than 1 km.
  11. 19. per second (bps)
  12. 20. the elevated, enclosed platform on a ship from which the captain and officers direct operations.
  13. 21. means of sending or receiving information, such as telephone lines or computers.
  14. 22. To read an encrypted file, you must have access to a secret key or password that enables you to decrypt it.
  15. 23. private Network A virtual private network (VPN) is a network that is constructed using public wires — usually the Internet — to connect to a private network, such as a company's internal network.
  16. 24. operating A specialized operating system for a network device such as a router, switch or firewall.
  17. 25. area network a computer network that links devices within a building or group of adjacent buildings, especially one with a radius of less than 1 km.
  18. 28. topology Bus topology is a specific kind of network topology in which all of the various devices in the network are connected to a single cable or line
  19. 29. server Web servers are computers that deliver (serves up) Web pages. Every Web server has an IP address and possibly a domain name.
  20. 32. is a computer networking device that connects devices together on a computer network, by using packet switching to receive, process and forward data to the destination device.
  21. 34. Network topology is the arrangement of the various elements (links, nodes, etc.) of a computer network.
  22. 35. server is a dedicated computer or a software system running on a computer that acts as an intermediary between an endpoint device
  23. 37. topology A ring network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node - a ring