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Comptia Network + Wireless NOS Voip

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






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






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






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






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






6. Another term for the UNIX command interpreter.






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






8. 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.






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






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






11. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.






12. 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






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






14. A UNIX service responsible for printing files placed in the printer queue by the lpr command.






15. 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.






16. 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.






17. 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.






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






19. 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.






20. 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.






21. The process of making a disk partition available.






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






23. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.






24. 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.






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






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






27. An access point that provides routing functions.






28. 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.






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






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






31. The GUI environment for UNIX and Linux systems.






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






33. 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.






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






35. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.






36. The real-time reception and transmission of images and audio among two or more locations.






37. Any type of video service - including IPTV - videoconferencing - and streaming video - that delivers video signals over packet-switched networks using the TCP/IP protocol suite.






38. The online documentation for any variety of the UNIX operating system. This documentation describes the use of the commands and the programming interface.






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






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






41. In LDAP naming conventions - the name of any one of the domains to which an object belongs.






42. In LDAP naming conventions - the name of an object.






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






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






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






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






47. 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






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






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






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







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