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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. 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






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






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






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






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






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






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






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






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






10. In IEEE terminology - the identifier for a BSS (basic service set).






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






12. 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.






13. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.






14. 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.






15. 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






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






17. A logical representation of multiple - hierarchical levels in a directory.






18. 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.






19. A UNIX distribution that originated at the University of California at Berkeley.






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






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






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






23. The process of copying Active Directory data to multiple domain controllers. This ensures redundancy so that in case one of the domain controllers fails - clients can still log on to the network - be authenticated - and access resources.






24. 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






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






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






27. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.






28. In LDAP naming conventions - the name of any one of the domains to which an object belongs.






29. 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.






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






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






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






33. The process of making a disk partition available.






34. A Session layer call signaling protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for call or videoconference setup between nodes on a VoIP or video-over-IP network - indicating node status - requesting addit






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






36. 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.






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. 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.






39. 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.






40. A small (usually home) network composed of personal communications devices.






41. 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).






42. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.






43. 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.






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






45. 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






46. A standard protocol for accessing network directories.






47. The nerve center for networks that adhere to H.323. IT authorize and authenticate terminals and gateways - manage bandwidth - and oversee call routing - accounting - and billing.






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






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






50. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.