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Comptia Network + Wireless NOS Voip

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Those can connect a group of nodes with a network or two networks with each other. They ma






2. A connection from an orbiting satellite to an Earth-based receiver.






3. A type of software license that - for a fixed price - allows any number of users in one location to legally access a program.






4. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.






5. A telephone used for VoIP on a TCP/IP-based network.






6. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.






7. In IEEE terminology - the identifier for a BSS (basic service set).






8. An access point that provides routing functions.






9. In the context of applications - a licensing mode that limits access to an application to specific users or workstations.






10. The action of associating a disk - directory - or device with a drive letter.






11. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.






12. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.






13. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.






14. A representation of a thing or person associated with the network that belongs in the NOS directory.






15. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.






16. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.






17. A service that transmits faxes over a TCP/IP network.






18. A type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.






19. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|






20. The term used to describe software that is distributed with few restrictions and whose source code is freely available.






21. A record of a user that contains all of her properties - including rights to resources - password - user name - and so on.






22. A proprietary implementation of the UNIX operating system by Sun Microsystems.






23. A type of wireless system in which the locations of the transmitter and receiver are static.






24. A type of wireless transmission in which lower-level signals are distributed over several frequencies simultaneously.






25. The provision of telephone service over the Internet.






26. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.






27. The real-time reception and transmission of images and audio among two or more locations.






28. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.






29. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).






30. A pictorial representation of computer functions and elements that - in the case of NOSs - enables administrators to more easily manage files - users - groups - security - printers - and other issues.






31. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.






32. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.






33. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.






34. A transmission technique in which a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.






35. In Windows Server 2003 or Server 2008 networking - the single domain from which child domains branch out in a domain tree.






36. A protocol used between media gateway controllers and media gateways. It is poised to replace MGCP on modern converged networks - as it supports a broader range of network technologies - including ATM. Also known as H.248.






37. On a network following the H.323 standard - a gateway that provides translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols (for example - SS7 on the PSTN).






38. The brand of computer central processing unit invented by and used in Sun Microsystems servers.






39. A service in which video signals are compressed and delivered over the Internet in a continuous stream so that a user can watch and listen even before all the data has been transmitted.






40. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.






41. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






42. A gateway that can translate IP fax data into analog fax data and vice versa.






43. A group of hierarchically arranged domains that share a common namespace in the Windows Server 2003 or Server 2008 Active Directory.






44. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites.






45. A character that enables you to combine existing commands to form new commands.






46. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user






47. The online documentation for any variety of the UNIX operating system. This documentation describes the use of the commands and the programming interface.






48. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.






49. The IEEE standard for a wireless networking technique that uses multiple frequency bands in the 5-GHz frequency range and provides a theoretical maximum throughput of 54 Mbps.






50. A logical receptacle for holding objects with similar characteristics or privileges in an NOS directory. Containers form the branches of the directory tree.