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






2. A version of Linux packaged and distributed by Red Hat.






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






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






5. The relationship between two domains on a Windows Server 2003 or Server 2008 network that allows a domain controller from one domain to authenticate users from the other domain.






6. The name of the primary file system used in most Linux distributions.






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






8. 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






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






10. 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.






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






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






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






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






15. 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.






16. A service in which television signals from broadcast or cable networks travel over packet-switched networks.






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






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






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






20. 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.






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






22. 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.






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. The signals made of electromagnetic energy that travel through the atmosphere.






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






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






27. Currently - the most popular version of WiMAX. IEEE improved the mobility and QoS characteristics of the technology - making it better suited to VoIP and mobile phone users.






28. The capability for operating multiple logical servers






29. 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.






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






31. 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. |






32. 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.






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






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






35. 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.






36. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.






37. A technique for ensuring QoS by prioritizing traffic.






38. The IEEE standard for a wireless networking technique that uses DSSS (directsequence spread spectrum) signaling in the 2.4-2.4835-GHz frequency range (also called the 2.4-GHz band). It separates the 2.4-GHz band into 14 overlapping 22-MHz channels an






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






40. In LDAP naming conventions - the name of an object.






41. In the context of IPTV - a device that decodes digital video signals and issues them to the television.






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






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






44. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.






45. 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).






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






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






48. 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.






49. 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.






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