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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. 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






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






3. In Microsoft terminology - the type of client/server network that relies on domains - rather than workgroups.






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






5. 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.






6. The core of a UNIX or Linux system. This part of the operating system is loaded and run when you turn on your computer. It mediates between user programs and the computer hardware.






7. The GUI environment for UNIX and Linux systems.






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






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






10. A network access method used on 802.11 wireless networks. In it - before a node begins to send data it checks the medium. If it detects no transmission activity - it waits a brief - random amount of time - and then sends its transmission. If the node






11. A type of WLAN in which stations communicate with an access point and not directly with each other.






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






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






14. The organization of files and directories (or folders) on a disk in which directories may contain files and other directories. When displayed graphically - this organization resembles a treelike structure.






15. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.






16. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.






17. 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).






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






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






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






21. The capability for operating multiple logical servers






22. 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.






23. The type of multitasking in which tasks are actually performed one at a time - in very brief succession. One program uses the processor for a certain period of time - then is suspended to allow another program to use the processor.






24. 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






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






26. A form of filename substitution - similar to the use of wildcards in Windows and DOS.






27. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.






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






29. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.






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






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






32. A file access protocol. It runs over TCP/IP and is the standard file access protocol used by Windows operating systems.






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






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






35. 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.






36. The process of moving blocks of information - called pages - between RAM and into a page file on disk.






37. A logical representation of multiple - hierarchical levels in a directory.






38. A type of satellite Internet access service in which a subscriber sends and receives data to and from the Internet over the satellite link. This is a symmetrical technology - in which both upstream and downstream throughputs are advertised to reach 4






39. 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.






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






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






42. On a SIP network - a server that accepts and responds to requests from user agents and SIP proxy servers for location information on recipients that belong to external domains.






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






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






46. In the DiffServ QoS technique - a forwarding specification that assigns each data stream a minimum departure rate from a given node. This technique circumvents delays that slow normal data from reaching its destination on time and in sequence.






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






48. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).






49. The proprietary version of UNIX that comes from Bell Labs.






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