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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. The nerve center for networks that adhere to H.323. IT authorize and authenticate terminals and gateways - manage bandwidth - and oversee call routing - accounting - and billing.






2. An attribute of an object that identifies the object separately from its related container(s) and domain.






3. 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. |






4. 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






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






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






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






8. A file system developed by Microsoft and used with its Windows NT - Windows 2000 Server - Windows Server 2003 - and Windows 2008 operating systems.






9. 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.






10. 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.






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






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






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






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






15. 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.






16. 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






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






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






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






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






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






22. A highly privileged user ID that has all rights to create - delete - modify - move - read - write - or execute files on a UNIX or Linux system.






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






24. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).






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






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






27. 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






28. 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.






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






30. A type of wireless transmission in which signals travel over a single frequency or within a specified frequency range.






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






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






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






34. The process of making a disk partition available.






35. A UNIX service responsible for printing files placed in the printer queue by the lpr command.






36. A standard protocol for accessing network directories.






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






38. A protocol suite codified by the IETF (in RFC 2543) as a set of Session layer signaling and control protocols for multiservice - packet-based networks.






39. 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.






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






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






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






43. A service that relies on a DSL connection to transmit packetized voice signals.






44. A computer configured to act like an IP telephone. SS7 (Signaling System 7) | A set of standards established by the ITU for handling call signaling on the PSTN (public switched telephone network).






45. A method used by wireless stations to detect the presence of an access point. The station issues a probe to each channel in its frequency range and waits for the access point to respond.






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






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






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






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






50. 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.






Can you answer 50 questions in 15 minutes?



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