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. An access point that provides routing functions.






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






3. A connection from an orbiting satellite to an Earth-based receiver.






4. 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.






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






6. 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.






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






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






9. 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.






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






11. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|






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






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






14. A proprietary implementation of the UNIX operating system by Sun Microsystems.






15. 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.






16. 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.






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






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






19. A streaming video - either on demand or live - that is delivered via the Web.






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






21. The software that sits between the client and server in a 3-tier architecture.






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






23. A user account that has unlimited privileges to resources and objects managed by a server or domain.






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






25. 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.






26. 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.






27. 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.






28. 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






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






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






31. 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.






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






33. 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.






34. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






35. A nonprofit industry association that owns the UNIX trademark.






36. A standard protocol for accessing network directories.






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






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






39. A service in which television signals from broadcast or cable networks travel over packet-switched networks.






40. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.






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






42. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.






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






44. In SIP terminology - a server that responds to user agent clients' requests for session initiation and termination.






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






46. In the DiffServ QoS technique - a forwarding specification that assigns each data stream a minimum departure rate from a given node. This technique circumvents delays that slow normal data from reaching its destination on time and in sequence.






47. 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. |






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






49. 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.






50. The process of making a disk partition available.