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. 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.






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






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






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






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






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






7. A type of software license that - for a fixed price - allows any number of users in one location to legally access a program.






8. 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.






9. 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.






10. 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.






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






12. The action of associating a disk - directory - or device with a drive letter.






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






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 Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.






16. 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






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






18. Another term for the UNIX command interpreter.






19. A type of satellite Internet access service in which a subscriber sends and receives data to and from the Internet over the satellite link. This is a symmetrical technology - in which both upstream and downstream throughputs are advertised to reach 4






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






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






22. 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






23. 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.






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






25. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.






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






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






28. 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.






29. 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.






30. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Those can connect a group of nodes with a network or two networks with each other. They ma






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






32. 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.






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






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






35. 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.






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






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






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






39. 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.






40. 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. |






41. The process of moving blocks of information - called pages - between RAM and into a page file on disk.






42. 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.






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






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






45. A continuum of electromagnetic waves used for data and voice






46. A proprietary NOS from Apple Computer that is based on a version of UNIX.






47. 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.






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






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






50. A telephone switch used to connect calls within a private organization.