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 logical representation of multiple - hierarchical levels in a directory.






2. 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).






3. A multiprocessing method that assigns each subtask to a specific processor.






4. 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.






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






6. The nerve center for networks that adhere to H.323. IT authorize and authenticate terminals and gateways - manage bandwidth - and oversee call routing - accounting - and billing.






7. 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.






8. Another term for the UNIX command interpreter.






9. 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






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






11. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.






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






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






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






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






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






17. 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






18. The provision of telephone service over the Internet.






19. A file on the hard drive that is used for virtual memory.






20. 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.






21. A well-defined - self-contained subset of a process. U






22. 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






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






24. 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.






25. 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.|






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






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






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






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






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






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






32. 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.






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






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






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






36. On a network following the H.323 standard - a gateway that provides translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols (for example - SS7 on the PSTN).






37. 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.






38. A protocol for communications and resource access between systems - such as clients and servers.






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






40. An attribute of an object that identifies the object separately from its related container(s) and domain.






41. 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






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






43. A group of users - servers - and other resources that share account and security policies through a Windows Server 2003 or Server 2008 NOS.






44. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.






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






46. The RAM chips installed on the computer's system board that provide dedicated memory to that computer.






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






48. A proprietary implementation of the UNIX operating system by Sun Microsystems.






49. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






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