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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. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






2. On a SIP network - a server that accepts requests for location information from user agents - then queries the nearest registrar server on behalf of those user agents. If the recipient user agent is in the SIP proxy server's domain - then that server






3. A variable property associated with a network object. For example - a restriction on the time of day a user can log on is an attribute associated with that user object.






4. The process of making a disk partition available.






5. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.






6. The software that sits between the client and server in a 3-tier architecture.






7. A wireless signal or path that travels directly in a straight line from its transmitter to its intended receiver.






8. A service in which a video stored as an encoded file is delivered to a viewer upon his request.






9. A LAN that uses wireless connections for some or all of its transmissions.






10. A proprietary implementation of the UNIX system distributed by IBM.






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






12. A domain established within another domain in a Windows Server 2003 or Server 2008 domain tree.






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






14. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.






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






16. A proprietary NOS from Apple Computer that is based on a version of UNIX.






17. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.






18. In the context of wireless networking - an assessment of client requirements - facility characteristics - and coverage areas to determine an access point arrangement that will ensure reliable wireless connectivity within a given area.






19. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.






20. A special identifier shared by BSSs that belong to the same ESS.






21. 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.






22. A telephone switch used to connect calls within a private organization.






23. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.






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






25. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th






26. In the DiffServ QoS technique - a forwarding specification that allows routers to assign data streams one of several prioritization levels.






27. In the context of 802.11n wireless technology - the combination of two 20-MHz frequency band to create one 40-MHz frequency band that can carry more than twice the amount of data that a single 20-MHz band could. It's recommended for use only in the 5






28. A nonprofit industry association that owns the UNIX trademark.






29. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.






30. A logical representation of a networked printer's functionality.






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






32. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.






33. A routine of sequential instructions that runs until it has achieved its goal.






34. A well-defined - self-contained subset of a process. U






35. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.






36. A type of antenna that issues wireless signals along a single direction - or path.






37. An access point that provides routing functions and is used as a gateway.






38. The term used to refer to a satellite that maintains a constant distance from a point on the equator at every point in its orbit.






39. The computer instructions written in a programming language that is readable by humans.






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






41. In SIP terminology - a server that responds to user agent clients' requests for session initiation and termination.






42. 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.






43. In the context of Windows Server 2003 or Server 2008 - a collection of domain trees that use different namespaces. It allows for trust relationships to be established between trees.






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






45. A protocol used for communication between media gateway controllers and media gateways.






46. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






47. The provision of telephone service over the Internet.






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






49. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






50. The GUI environment for UNIX and Linux systems.