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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 access point that provides routing functions.






2. A technique for ensuring QoS by prioritizing traffic.






3. 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






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






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






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






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






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






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






10. A file access protocol. It runs over TCP/IP and is the standard file access protocol used by Windows operating systems.






11. 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.






12. The type of multitasking in which tasks are actually performed one at a time - in very brief succession. One program uses the processor for a certain period of time - then is suspended to allow another program to use the processor.






13. 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.






14. 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.






15. A type of antenna that issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly m






16. 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.






17. 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.






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






19. 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






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






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






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






23. The GUI environment for UNIX and Linux systems.






24. 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






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






26. The action of associating a disk - directory - or device with a drive letter.






27. 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.






28. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th






29. 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.






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






31. A domain established within another domain in a Windows Server 2003 or Server 2008 domain tree.






32. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.






33. 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).






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






35. A licensing mode that allows a fixed quantity of clients to use one software package simultaneously.






36. 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






37. A form of filename substitution - similar to the use of wildcards in Windows and DOS.






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






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






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






41. 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.






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






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






44. 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.






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






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






47. A protocol used for communication between media gateway controllers and media gateways.






48. 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






49. A protocol that enables one system to access files on another system.






50. Another term for the UNIX command interpreter.