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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 proprietary version of UNIX that comes from Bell Labs.






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






3. A connection from an Earth-based transmitter to an orbiting satellite.






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






5. The IEEE standard for a wireless networking technique that uses multiple frequency bands in the 5-GHz frequency range and provides a theoretical maximum throughput of 54 Mbps.






6. 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






7. 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.|






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






9. 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.






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






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






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






13. 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.






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






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






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






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






18. 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.






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






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






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






22. 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.






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






24. A user account that has unlimited privileges to resources and objects managed by a server or domain.






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






26. A well-defined - self-contained subset of a process. U






27. A UNIX service responsible for printing files placed in the printer queue by the lpr command.






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






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






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






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






32. The GUI environment for UNIX and Linux systems.






33. 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.






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






35. 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






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






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






38. 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.






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






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






42. In the context of 802.11n wireless networking - the ability for access points to issue multiple signals to stations - thereby multiplying the signal's strength and increasing their range and data-carrying capacity.






43. In IEEE terminology - a group of stations that share an access point.






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






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






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






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






48. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






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






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