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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. A nonprofit industry association that owns the UNIX trademark.






2. 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.






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






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






5. The capability for operating multiple logical servers






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






7. A variable property associated with a network object. For example - a restriction on the time of day a user can log on is an attribute associated with that user object.






8. 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.






9. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).






10. In the context of wireless networking - an assessment of client requirements - facility characteristics - and coverage areas to determine an access point arrangement that will ensure reliable wireless connectivity within a given area.






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






12. A version of Linux packaged and distributed by Red Hat.






13. 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.






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






15. 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.






16. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






17. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.






18. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.






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






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






21. A 128-bit number generated and assigned to an object upon its creation in Active Directory.






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






23. An access point that provides routing functions.






24. 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.






25. The brand of computer central processing unit invented by and used in Sun Microsystems servers.






26. In the context of wireless networking - the process in which a station listens to several channels within a frequency range for a beacon issued by an access point.






27. 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.






28. 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.






29. The GUI environment for UNIX and Linux systems.






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






31. 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.






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






33. An IEEE standard for wireless MANs. Its networks may use frequencies between 2 and 66 GHz. Their antennas may operate in a line-of-sight or non-line-of-sight manner and cover 50 kilometers (or approximately 30 miles). Its connections can achieve a ma






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






35. 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.






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






37. 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.






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






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






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






41. A protocol suite codified by the IETF (in RFC 2543) as a set of Session layer signaling and control protocols for multiservice - packet-based networks.






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






43. A technique for ensuring QoS by prioritizing traffic.






44. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.






45. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.






46. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.






47. The preferred Active Directory naming convention for objects when used in informal situations. This name looks like a familiar Internet address - including the positioning of the domain name after the @ sign.






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






49. Any implementation of UNIX for which the source code is either unavailable or available only by purchasing a licensed copy from Novell (costing as much as millions of dollars).






50. 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