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






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






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






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






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






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






7. The preferred Active Directory naming convention for objects when used in informal situations. This name looks like a familiar Internet address - including the positioning of the domain name after the @ sign.






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






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






10. The core of a UNIX or Linux system. This part of the operating system is loaded and run when you turn on your computer. It mediates between user programs and the computer hardware.






11. 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.






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






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






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






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






16. 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.






17. The process of making a disk partition available.






18. 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).






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






20. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th






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






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






23. A UNIX distribution that originated at the University of California at Berkeley.






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






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






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






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






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






29. A type of antenna that issues wireless signals along a single direction - or path.






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






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






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. An access point that provides routing functions.






35. A protocol used between media gateway controllers and media gateways. It is poised to replace MGCP on modern converged networks - as it supports a broader range of network technologies - including ATM. Also known as H.248.






36. 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.






37. 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.






38. 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.






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






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






41. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.






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






43. The IEEE standard for a wireless networking technique that uses multiple frequency bands in the 5-GHz frequency range and provides a theoretical maximum throughput of 54 Mbps.






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






45. 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).






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






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






48. A type of wireless system in which the locations of the transmitter and receiver are static.






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






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






Can you answer 50 questions in 15 minutes?



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