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 DiffServ QoS technique - a forwarding specification that assigns each data stream a minimum departure rate from a given node. This technique circumvents delays that slow normal data from reaching its destination on time and in sequence.






2. 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.






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






4. 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).






5. 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).






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






7. The relationship between two domains on a Windows Server 2003 or Server 2008 network that allows a domain controller from one domain to authenticate users from the other domain.






8. 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.






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






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






11. 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.






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






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






14. 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.






15. 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






16. 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.






17. 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.






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






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






20. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.






21. The software that sits between the client and server in a 3-tier architecture.






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






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






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






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






26. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.






27. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






28. 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






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






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






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






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






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






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






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






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






37. 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






38. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.






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






40. 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.






41. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.






42. A LAN that uses wireless connections for some or all of its transmissions.






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






44. 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.






45. 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.|






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






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






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






49. A long form of an object's name in Active Directory that explicitly indicates the object name - plus the names of its containers and domains. It includes a DC (domain component) - OU (organizational unit) - and CN (common name).






50. 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