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. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.






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






3. The signals made of electromagnetic energy that travel through the atmosphere.






4. The technique of splitting tasks among multiple processors to expedite the completion of any single instruction.






5. A method used by wireless stations to detect the presence of an access point. The station issues a probe to each channel in its frequency range and waits for the access point to respond.






6. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.






7. A special identifier shared by BSSs that belong to the same ESS.






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






9. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).






10. A connection from an Earth-based transmitter to an orbiting satellite.






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






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






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






14. 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.






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






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






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






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






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






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






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






22. A highly privileged user ID that has all rights to create - delete - modify - move - read - write - or execute files on a UNIX or Linux system.






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






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






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






26. The capability for operating multiple logical servers






27. 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.






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






29. 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.






30. The exchange of information between the components of a network or system for the purposes of establishing - monitoring - or releasing connections as well as controlling system operations.






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






32. A logical representation of a networked printer's functionality.






33. A standard protocol for accessing network directories.






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






35. 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






36. A group of access points and associated stations (or basic service sets) connected to the same LAN.






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






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






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






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






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






42. 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).






43. 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.






44. On a SIP network - a server that accepts requests for location information from user agents - then queries the nearest registrar server on behalf of those user agents. If the recipient user agent is in the SIP proxy server's domain - then that server






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






46. 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.






47. 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.






48. 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.






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






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