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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 form of filename substitution - similar to the use of wildcards in Windows and DOS.






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






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






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






5. 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






6. 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






7. 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).






8. 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.






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






10. A technique for ensuring QoS by prioritizing traffic.






11. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user






12. 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.






13. The provision of telephone service over the Internet.






14. The GUI environment for UNIX and Linux systems.






15. 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






16. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.






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






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






19. 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.






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






21. A wireless signaling technique in which a signal jumps between several different frequencies within a band in a synchronization pattern known to the channel's receiver and transmitter.






22. A file system developed by Microsoft and used with its Windows NT - Windows 2000 Server - Windows Server 2003 - and Windows 2008 operating systems.






23. A UNIX command that places files in the printer queue.






24. A service that relies on a DSL connection to transmit packetized voice signals.






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






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






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






28. A standard protocol for accessing network directories.






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






30. 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






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






32. 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.






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






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






35. 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.






36. 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.






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






38. A service in which television signals from broadcast or cable networks travel over packet-switched networks.






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






40. 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.






41. A popular remote file system created by Sun Microsystems - and available for UNIX and Linux operating systems.






42. 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.






43. The organization of files and directories (or folders) on a disk in which directories may contain files and other directories. When displayed graphically - this organization resembles a treelike structure.






44. 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.






45. On a SIP network - a server that accepts and responds to requests from user agents and SIP proxy servers for location information on recipients that belong to external domains.






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






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






48. A UNIX or Linux file system information storage area that holds all details about a file. This information includes the size - the access rights - the date and time of creation - and a pointer to the actual contents of the file.






49. A UNIX service responsible for printing files placed in the printer queue by the lpr command.






50. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.