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






2. In the context of Windows Server 2003 or Server 2008 - a collection of domain trees that use different namespaces. It allows for trust relationships to be established between trees.






3. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.






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






5. 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.






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






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






8. 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).






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






10. The IEEE standard for a wireless networking technique designed to be compatible with 802.11b while using different encoding techniques that allow it to reach a theoretical maximum capacity of 54 Mbps. It uses the 2.4-GHz frequency band.






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. In SIP terminology - end-user devices such as workstations - PDAs - cell phones - or IP telephones. It initiates a SIP connection.






13. A type of antenna that issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly m






14. 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.






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






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






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






18. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.






19. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.






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






21. 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






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






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






24. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its surface - positioned between the equator and the poles. These satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and c






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






26. The term used to refer to a satellite that maintains a constant distance from a point on the equator at every point in its orbit.






27. In the context of IPTV - a device that decodes digital video signals and issues them to the television.






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






29. 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.






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






31. An access point that provides routing functions and is used as a gateway.






32. On a SIP network - a server that maintains a database containing information about the locations (network addresses) of each user agent in its domain. When a user agent joins a SIP network - it transmits its location information to the SIP registrar






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






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






35. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






36. The provision of telephone service over the Internet.






37. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.






38. 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.






39. Another term for the UNIX command interpreter.






40. 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.






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






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






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






44. A licensing mode that allows a fixed quantity of clients to use one software package simultaneously.






45. A standard protocol for accessing network directories.






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






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






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






49. A private switch that accepts and interprets both analog and digital voice signals (although some IP-PBXs do not accept analog lines). It can connect with both traditional PSTN lines and data networks. |






50. A protocol that enables one system to access files on another system.