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






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






3. 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






4. 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.






5. A standard protocol for accessing network directories.






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






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






8. 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).






9. 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.






10. 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.






11. 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.






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






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






14. 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.






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






16. The complete database of hierarchical names (including host and domain names) used to resolve IP addresses with their hosts.






17. A network access method used on 802.11 wireless networks. In it - before a node begins to send data it checks the medium. If it detects no transmission activity - it waits a brief - random amount of time - and then sends its transmission. If the node






18. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.






19. 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.






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






21. A Transport layer protocol used with voice and video transmission. It operates on top of UDP and provides information about packet sequence to help receiving nodes detect delay and packet loss. It also assigns packets a timestamp that corresponds to






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






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






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






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






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






27. 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).






28. 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.






29. An object in an operating system's directory - such as a printer or user - that does not contain other objects.






30. 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






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






32. 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.






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






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






35. A multiprocessing method that assigns each subtask to a specific processor.






36. 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.






37. A proprietary implementation of the UNIX operating system by Sun Microsystems.






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






39. 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.






40. The description of object types - or classes - and their required and optional attributes that are stored in an NOS's directory.






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






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






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






44. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).






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






46. 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.






47. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.






48. A LAN that uses wireless connections for some or all of its transmissions.






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






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