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 change in a wireless signal's strength as a result of some of the electromagnetic energy being scattered - reflected - or diffracted after being issued by the transmitter.






2. A pictorial representation of computer functions and elements that - in the case of NOSs - enables administrators to more easily manage files - users - groups - security - printers - and other issues.






3. 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.






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






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






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






7. A technique for ensuring QoS by prioritizing traffic.






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






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






10. A standard protocol for accessing network directories.






11. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.






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






13. A file access protocol. It runs over TCP/IP and is the standard file access protocol used by Windows operating systems.






14. The process of making a disk partition available.






15. The proprietary version of UNIX that comes from Bell Labs.






16. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites.






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






18. In Microsoft terminology - the type of client/server network that relies on domains - rather than workgroups.






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






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






21. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






22. The security relationship between domains in the same domain tree in which one domain grants every other domain in the tree access to its resources and - in turn - that domain can access other domains' resources.






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






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






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






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






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






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






29. 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






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






31. 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.






32. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.






33. A record of a user that contains all of her properties - including rights to resources - password - user name - and so on.






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






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






36. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.






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






38. In the context of 802.11n wireless networking - the ability for access points to issue multiple signals to stations - thereby multiplying the signal's strength and increasing their range and data-carrying capacity.






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






40. A gateway that can translate IP fax data into analog fax data and vice versa.






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






42. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|






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






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






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. The description of object types - or classes - and their required and optional attributes that are stored in an NOS's directory.






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






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






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