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 action of associating a disk - directory - or device with a drive letter.






2. An attribute of an object that identifies the object separately from its related container(s) and domain.






3. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.






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






5. 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






6. 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.






7. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.






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






9. The method for organizing and managing objects associated with the network in the Windows Server 2003 and Server 2008 NOSs.






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






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






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






13. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






14. 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.






15. 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.






16. The description of object types - or classes - and their required and optional attributes that are stored in an NOS's directory.






17. The capability for operating multiple logical servers






18. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.






19. 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.






20. The process a wireless station undergoes to find an access point.






21. The process of making a disk partition available.






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






23. A unique character string used to identify an access point on an 802.11 network.






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






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






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






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






28. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.






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






30. 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






31. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.






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






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






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






35. 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






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






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






38. A cost-savings benefit that results from organizations completing long-distance telephone calls over their packet-switched networks - thus bypassing tolls charged by common carriers on comparable PSTN calls.






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






40. Currently - the most popular version of WiMAX. IEEE improved the mobility and QoS characteristics of the technology - making it better suited to VoIP and mobile phone users.






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






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






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






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






45. 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.






46. An access point that provides routing functions.






47. 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.






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






49. 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.






50. 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.