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 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






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






3. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.






4. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






5. 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






6. 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. |






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






8. A wireless signal or path that travels directly in a straight line from its transmitter to its intended receiver.






9. 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.






10. An object in an operating system's directory - such as a printer or user - that does not contain other objects.






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






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






13. 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






14. 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.






15. 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






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






17. 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.






18. The term used to describe software that is distributed with few restrictions and whose source code is freely available.






19. A domain established within another domain in a Windows Server 2003 or Server 2008 domain tree.






20. A telephone used for VoIP on a TCP/IP-based network.






21. In the context of wireless networking - the process in which a station listens to several channels within a frequency range for a beacon issued by an access point.






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






23. 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.






24. 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.






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






26. 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






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






28. A logical representation of multiple - hierarchical levels in a directory.






29. A computer configured to act like an IP telephone. SS7 (Signaling System 7) | A set of standards established by the ITU for handling call signaling on the PSTN (public switched telephone network).






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






31. A telephone switch used to connect calls within a private organization.






32. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).






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






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






35. 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).






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






37. 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.






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






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






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






41. A cost-savings benefit that results from organizations completing long-distance telephone calls over their packet-switched networks - thus bypassing tolls charged by common carriers on comparable PSTN calls.






42. The method for organizing and managing objects associated with the network in the Windows Server 2003 and Server 2008 NOSs.






43. Another term for the UNIX command interpreter.






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






45. On a SIP network - a server that accepts and responds to requests from user agents and SIP proxy servers for location information on recipients that belong to external domains.






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






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






48. A companion protocol to RTP - defined in RFC 3550 by the IETF - RTCP provides feedback on the quality of a call or videoconference to its participants.






49. An access point that provides routing functions.






50. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.