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Comptia Network + Wireless NOS Voip

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. An object in an operating system's directory - such as a printer or user - that does not contain other objects.






2. 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.






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






4. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.






5. Another term for the UNIX command interpreter.






6. 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.






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






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






9. In the context of applications - a licensing mode that limits access to an application to specific users or workstations.






10. In SIP terminology - end-user devices such as workstations - PDAs - cell phones - or IP telephones. It initiates a SIP connection.






11. 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.






12. In the DiffServ QoS technique - a forwarding specification that assigns each data stream a minimum departure rate from a given node. This technique circumvents delays that slow normal data from reaching its destination on time and in sequence.






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






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






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






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






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






18. A standard protocol for accessing network directories.






19. 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.






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






22. 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.






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






24. 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






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






26. 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.






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






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






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






30. 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.






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






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






33. 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






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






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






36. 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.






37. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






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






39. 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.






40. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.






41. The GUI environment for UNIX and Linux systems.






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






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






44. 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.






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






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






47. 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).






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






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






50. The security relationship between domains in the same domain tree in which one domain grants every other domain in the tree access to its resources and - in turn - that domain can access other domains' resources.







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