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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 system distributed by IBM.






2. A UNIX or Linux file system information storage area that holds all details about a file. This information includes the size - the access rights - the date and time of creation - and a pointer to the actual contents of the file.






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






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






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






6. The complete database of hierarchical names (including host and domain names) used to resolve IP addresses with their hosts.






7. A type of object recognized by an NOS directory and defined in an NOS schema.






8. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.






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






10. The IEEE standard for a wireless networking technique that uses multiple frequency bands in the 5-GHz frequency range and provides a theoretical maximum throughput of 54 Mbps.






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






12. A small (usually home) network composed of personal communications devices.






13. In general - a listing that organizes resources and correlates them with their properties. In the context of NOSs - a method for organizing and managing objects.






14. In IEEE terminology - a group of stations that share an access point.






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






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






17. The provision of telephone service over the Internet.






18. 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






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






20. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.






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






22. 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.






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






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






25. A technique for ensuring QoS by prioritizing traffic.






26. A protocol for communications and resource access between systems - such as clients and servers.






27. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.






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






29. Any type of video service - including IPTV - videoconferencing - and streaming video - that delivers video signals over packet-switched networks using the TCP/IP protocol suite.






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






31. The capability for operating multiple logical servers






32. 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.






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






34. The term used to refer to the different implementations of a particular UNIX or Linux system. For example - different distributions of Linux include Fedora - SUSE - and Ubuntu.






35. As specified in RFC 2205 - a QoS technique that attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.






36. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Those can connect a group of nodes with a network or two networks with each other. They ma






37. The GUI environment for UNIX and Linux systems.






38. A UNIX command that places files in the printer queue.






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






40. An IEEE standard for wireless MANs. Its networks may use frequencies between 2 and 66 GHz. Their antennas may operate in a line-of-sight or non-line-of-sight manner and cover 50 kilometers (or approximately 30 miles). Its connections can achieve a ma






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






42. A wireless signaling technique in which a signal jumps between several different frequencies within a band in a synchronization pattern known to the channel's receiver and transmitter.






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






44. 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.






45. The diffusion of a wireless signal that results from hitting an object that has smaller dimensions compared to the signal's wavelength.






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






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






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






49. 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






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