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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. An end node on a network; used most often in the context of wireless networks. transponder






2. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.






3. 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.






4. 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.






5. 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






6. 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






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






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






9. 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






10. A transmission technique in which a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.






11. 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.






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






13. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






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






15. A method of multiprocessing that splits all operations equally among two or more processors.






16. A long form of an object's name in Active Directory that explicitly indicates the object name - plus the names of its containers and domains. It includes a DC (domain component) - OU (organizational unit) - and CN (common name).






17. 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.






18. A logical representation of a networked printer's functionality.






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






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






21. Any implementation of UNIX for which the source code is either unavailable or available only by purchasing a licensed copy from Novell (costing as much as millions of dollars).






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






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






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






25. 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






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






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






28. 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






29. A means of collectively managing users' permissions and restrictions applied to shared resources.






30. 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.






31. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.






32. The GUI environment for UNIX and Linux systems.






33. 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.






34. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user






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






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






37. A character that enables you to combine existing commands to form new commands.






38. 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






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






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






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






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






43. The process of making a disk partition available.






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






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






46. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th






47. On a SIP network - a server that maintains a database containing information about the locations (network addresses) of each user agent in its domain. When a user agent joins a SIP network - it transmits its location information to the SIP registrar






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






49. 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






50. A gateway that can translate IP fax data into analog fax data and vice versa.