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. 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.






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






3. 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).






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






5. A Session layer call signaling protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for call or videoconference setup between nodes on a VoIP or video-over-IP network - indicating node status - requesting addit






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






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






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






9. 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).






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






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






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






13. 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).






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






15. In general - a listing that organizes resources and correlates them with their properties. In the context of NOSs - a method for organizing and managing objects.






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






17. 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






18. Another term for the UNIX command interpreter.






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






20. 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.






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






22. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its surface - positioned between the equator and the poles. These satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and c






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






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






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






26. A user account that has unlimited privileges to resources and objects managed by a server or domain.






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






28. A technique for ensuring QoS by prioritizing traffic.






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






30. 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






31. The GUI environment for UNIX and Linux systems.






32. 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.






33. The technique of splitting tasks among multiple processors to expedite the completion of any single instruction.






34. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th






35. A type of object recognized by an NOS directory and defined in an NOS schema.






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 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.






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






39. 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.






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






41. In the DiffServ QoS technique - a forwarding specification that allows routers to assign data streams one of several prioritization levels.






42. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.






43. 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.






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






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






46. 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.






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






48. A transmission technique in which a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.






49. A licensing mode that allows a fixed quantity of clients to use one software package simultaneously.






50. A network access method used on 802.11 wireless networks. In it - before a node begins to send data it checks the medium. If it detects no transmission activity - it waits a brief - random amount of time - and then sends its transmission. If the node