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Comptia Network + Wireless NOS Voip

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  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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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 Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.






2. 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.






3. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.






4. 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.






5. 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






6. 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.






7. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).






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






9. A representation of a thing or person associated with the network that belongs in the NOS directory.






10. A type of object recognized by an NOS directory and defined in an NOS schema.






11. A type of WLAN in which stations communicate with an access point and not directly with each other.






12. 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.






13. 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).






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






15. 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.






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






17. A protocol suite codified by the IETF (in RFC 2543) as a set of Session layer signaling and control protocols for multiservice - packet-based networks.






18. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.






19. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.






20. 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).






21. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).






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






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






24. 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.






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






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






27. 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






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






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






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






31. 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.






32. A proprietary implementation of the UNIX system distributed by IBM.






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






34. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.






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






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






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






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






39. 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






40. 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.






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






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






43. 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).






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






45. A unique character string used to identify an access point on an 802.11 network.






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






47. In the context of wireless networking - the communication that occurs between a station and an access point to enable the station to connect to the network via that access point.






48. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.






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






50. In the context of 802.11n wireless technology - the combination of two 20-MHz frequency band to create one 40-MHz frequency band that can carry more than twice the amount of data that a single 20-MHz band could. It's recommended for use only in the 5







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