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 LAN that uses wireless connections for some or all of its transmissions.






2. A method of multiprocessing that splits all operations equally among two or more processors.






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






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






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






6. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.






7. A telephone switch used to connect calls within a private organization.






8. The type of multitasking in which tasks are actually performed one at a time - in very brief succession. One program uses the processor for a certain period of time - then is suspended to allow another program to use the processor.






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






10. A type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.






11. A UNIX command that places files in the printer queue.






12. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.






13. The GUI environment for UNIX and Linux systems.






14. 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.






15. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites.






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






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






18. 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.






19. 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.






20. 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. |






21. 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.






22. 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






23. A means of collectively managing users' permissions and restrictions applied to shared resources.






24. 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.






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






26. In LDAP naming conventions - the name of an object.






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






28. A popular remote file system created by Sun Microsystems - and available for UNIX and Linux operating systems.






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






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






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






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






33. The real-time reception and transmission of images and audio among two or more locations.






34. A continuum of electromagnetic waves used for data and voice






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






36. A pictorial representation of computer functions and elements that - in the case of NOSs - enables administrators to more easily manage files - users - groups - security - printers - and other issues.






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






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






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






40. 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.






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






42. A file system developed by Microsoft and used with its Windows NT - Windows 2000 Server - Windows Server 2003 - and Windows 2008 operating systems.






43. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).






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






45. A character that enables you to combine existing commands to form new commands.






46. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.






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






48. In the context of Windows Server 2003 or Server 2008 - a collection of domain trees that use different namespaces. It allows for trust relationships to be established between trees.






49. 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.






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