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. 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.






2. 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.|






3. A type of wireless system in which the locations of the transmitter and receiver are static.






4. 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).






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






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






7. 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.






8. The GUI environment for UNIX and Linux systems.






9. 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.






10. 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.






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






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






13. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.






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






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






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






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






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






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






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






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






22. 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.






23. 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.






24. 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






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






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






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






28. Any type of video service - including IPTV - videoconferencing - and streaming video - that delivers video signals over packet-switched networks using the TCP/IP protocol suite.






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






30. A proprietary implementation of the UNIX system distributed by IBM.






31. The term used to refer to the different implementations of a particular UNIX or Linux system. For example - different distributions of Linux include Fedora - SUSE - and Ubuntu.






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






33. A technique for ensuring QoS by prioritizing traffic.






34. A service that transmits faxes over a TCP/IP network.






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






36. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






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






38. A telephone used for VoIP on a TCP/IP-based network.






39. 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






40. 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






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






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






43. The brand of computer central processing unit invented by and used in Sun Microsystems servers.






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






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






46. 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.






47. 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






48. A type of wireless transmission in which signals travel over a single frequency or within a specified frequency range.






49. A streaming video - either on demand or live - that is delivered via the Web.






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