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Comptia Network + Wireless NOS Voip

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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 LAN that uses wireless connections for some or all of its transmissions.






2. 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






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






4. 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.






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






6. 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






7. The computer instructions written in a programming language that is readable by humans.






8. The process of making a disk partition available.






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






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






11. 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.






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






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






14. 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.






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






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






17. 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






18. The IEEE standard for a wireless networking technique designed to be compatible with 802.11b while using different encoding techniques that allow it to reach a theoretical maximum capacity of 54 Mbps. It uses the 2.4-GHz frequency band.






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






20. 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






21. 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.






22. A type of antenna that issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly m






23. 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.






24. 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.






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






26. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.






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






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






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






30. A service in which video signals are compressed and delivered over the Internet in a continuous stream so that a user can watch and listen even before all the data has been transmitted.






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






32. A file on the hard drive that is used for virtual memory.






33. 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.






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






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






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






37. A licensing mode that allows a fixed quantity of clients to use one software package simultaneously.






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






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






40. The capability for operating multiple logical servers






41. 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.






42. 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






43. In the context of Windows Server 2003 or Server 2008 - a collection of domain trees that use different namespaces. It allows for trust relationships to be established between trees.






44. In LDAP naming conventions - the name of any one of the domains to which an object belongs.






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






46. 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).






47. A protocol used for communication between media gateway controllers and media gateways.






48. 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.






49. 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






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






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