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 proprietary NOS from Apple Computer that is based on a version of UNIX.






2. 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.






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






4. 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






5. The complete database of hierarchical names (including host and domain names) used to resolve IP addresses with their hosts.






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






7. 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.






8. 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.






9. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.






10. The IEEE standard for a wireless networking technique designed to be compatible with 802.11b while using different encoding techniques that allow it to reach a theoretical maximum capacity of 54 Mbps. It uses the 2.4-GHz frequency band.






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






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






13. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.






14. 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






15. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.






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






17. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).






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






19. The GUI environment for UNIX and Linux systems.






20. The process of moving blocks of information - called pages - between RAM and into a page file on disk.






21. 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.






22. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.






23. A type of wireless transmission in which lower-level signals are distributed over several frequencies simultaneously.






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






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






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






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






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






29. 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.






30. 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.






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






32. 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.






33. 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






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






35. A small (usually home) network composed of personal communications devices.






36. A portion of the kernel that you can load and unload to add or remove functionality on a running UNIX or Linux system.






37. 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






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






39. In the context of IPTV - a device that decodes digital video signals and issues them to the television.






40. 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).






41. A private switch that accepts and interprets both analog and digital voice signals (although some IP-PBXs do not accept analog lines). It can connect with both traditional PSTN lines and data networks. |






42. 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.






43. 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).






44. In LDAP naming conventions - the name of any one of the domains to which an object belongs.






45. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.






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






47. In Windows Server 2003 or Server 2008 networking - the single domain from which child domains branch out in a domain tree.






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






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






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