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






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






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






4. 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.






5. 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.






6. 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.






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






8. The IEEE standard for a wireless networking technique that uses DSSS (directsequence spread spectrum) signaling in the 2.4-2.4835-GHz frequency range (also called the 2.4-GHz band). It separates the 2.4-GHz band into 14 overlapping 22-MHz channels an






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






10. 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






11. A nonprofit industry association that owns the UNIX trademark.






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






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






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






16. A special identifier shared by BSSs that belong to the same ESS.






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






18. 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).






19. 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.






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






21. A method used by wireless stations to detect the presence of an access point. The station issues a probe to each channel in its frequency range and waits for the access point to respond.






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






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






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






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






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






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






28. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.






29. A routine of sequential instructions that runs until it has achieved its goal.






30. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.






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






32. 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.






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






34. 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.






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






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






37. 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.






38. 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.






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






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






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






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






43. 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.






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






45. 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






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






47. A connection from an orbiting satellite to an Earth-based receiver.






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






49. 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






50. As specified in RFC 2205 - a QoS technique that attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.