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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 proprietary implementation of the UNIX operating system by Sun Microsystems.






2. A continuum of electromagnetic waves used for data and voice






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






4. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.






5. 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






6. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.






7. A private switch that accepts and interprets both analog and digital voice signals (although some IP-PBXs do not accept analog lines). It can connect with both traditional PSTN lines and data networks. |






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






9. A group of access points and associated stations (or basic service sets) connected to the same LAN.






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






11. The GUI environment for UNIX and Linux systems.






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






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






14. A group of users - servers - and other resources that share account and security policies through a Windows Server 2003 or Server 2008 NOS.






15. 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.






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






17. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.






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






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






20. A 128-bit number generated and assigned to an object upon its creation in Active Directory.






21. The description of object types - or classes - and their required and optional attributes that are stored in an NOS's directory.






22. A Session layer call signaling protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for call or videoconference setup between nodes on a VoIP or video-over-IP network - indicating node status - requesting addit






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






24. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.






25. The process a wireless station undergoes to find an access point.






26. A protocol that enables one system to access files on another system.






27. The preferred Active Directory naming convention for objects when used in informal situations. This name looks like a familiar Internet address - including the positioning of the domain name after the @ sign.






28. A popular remote file system created by Sun Microsystems - and available for UNIX and Linux operating systems.






29. A connection from an Earth-based transmitter to an orbiting satellite.






30. 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






31. A cost-savings benefit that results from organizations completing long-distance telephone calls over their packet-switched networks - thus bypassing tolls charged by common carriers on comparable PSTN calls.






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






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






34. An access point that provides routing functions.






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






36. A Transport layer protocol used with voice and video transmission. It operates on top of UDP and provides information about packet sequence to help receiving nodes detect delay and packet loss. It also assigns packets a timestamp that corresponds to






37. In the context of wireless networking - the process in which a station listens to several channels within a frequency range for a beacon issued by an access point.






38. The method for organizing and managing objects associated with the network in the Windows Server 2003 and Server 2008 NOSs.






39. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.






40. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its surface - positioned between the equator and the poles. These satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and c






41. The exchange of information between the components of a network or system for the purposes of establishing - monitoring - or releasing connections as well as controlling system operations.






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






43. A means of collectively managing users' permissions and restrictions applied to shared resources.






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






45. A multiprocessing method that assigns each subtask to a specific processor.






46. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.






47. The technique of splitting tasks among multiple processors to expedite the completion of any single instruction.






48. An object in an operating system's directory - such as a printer or user - that does not contain other objects.






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






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