Test your basic knowledge |

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 object recognized by an NOS directory and defined in an NOS schema.






2. 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






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






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






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






6. 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.






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






8. A technique for ensuring QoS by prioritizing traffic.






9. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.






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






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






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






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






14. 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






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






16. An access point that provides routing functions.






17. 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.






18. 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






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






20. A standard protocol for accessing network directories.






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






22. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






23. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.






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






25. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.






26. 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. |






27. 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).






28. 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.






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






30. 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






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






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






33. 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.






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






35. A pictorial representation of computer functions and elements that - in the case of NOSs - enables administrators to more easily manage files - users - groups - security - printers - and other issues.






36. A client/server environment that uses middleware to translate requests between the client and server.






37. 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.






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






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






40. The brand of computer central processing unit invented by and used in Sun Microsystems servers.






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






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






43. 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.






44. 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.






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






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






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






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






49. The process of copying Active Directory data to multiple domain controllers. This ensures redundancy so that in case one of the domain controllers fails - clients can still log on to the network - be authenticated - and access resources.






50. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.