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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 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.






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






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






4. 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.






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






6. A companion protocol to RTP - defined in RFC 3550 by the IETF - RTCP provides feedback on the quality of a call or videoconference to its participants.






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






8. 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.






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






10. On a SIP network - a server that accepts requests for location information from user agents - then queries the nearest registrar server on behalf of those user agents. If the recipient user agent is in the SIP proxy server's domain - then that server






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






12. 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.






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






14. 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.






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






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






17. 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.






18. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.






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






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






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






22. 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.






23. A group of access points and associated stations (or basic service sets) connected to the same LAN.






24. Another term for the UNIX command interpreter.






25. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.






26. A service that relies on a DSL connection to transmit packetized voice signals.






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






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






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






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






31. In the context of 802.11n wireless technology - the combination of two 20-MHz frequency band to create one 40-MHz frequency band that can carry more than twice the amount of data that a single 20-MHz band could. It's recommended for use only in the 5






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






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






34. The organization of files and directories (or folders) on a disk in which directories may contain files and other directories. When displayed graphically - this organization resembles a treelike structure.






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






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






37. 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).






38. A long form of an object's name in Active Directory that explicitly indicates the object name - plus the names of its containers and domains. It includes a DC (domain component) - OU (organizational unit) - and CN (common name).






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






40. 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.






41. 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.






42. 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






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






44. A standard protocol for accessing network directories.






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






46. 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.






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






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






49. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.






50. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.