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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 logical receptacle for holding objects with similar characteristics or privileges in an NOS directory. Containers form the branches of the directory tree.






2. 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.






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






4. 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.






5. A technique for ensuring QoS by prioritizing traffic.






6. The process a wireless station undergoes to find an access point.






7. 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).






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






9. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.






10. 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.






11. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).






12. 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.






13. A representation of a thing or person associated with the network that belongs in the NOS directory.






14. 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.






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






16. 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






17. 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.






18. 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.






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






20. 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.






21. A group of users - servers - and other resources that share account and security policies through a Windows Server 2003 or Server 2008 NOS.






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






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






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






25. A file on the hard drive that is used for virtual memory.






26. A type of wireless transmission in which lower-level signals are distributed over several frequencies simultaneously.






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 IEEE terminology - a group of stations that share an access point.






29. 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.






30. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Those can connect a group of nodes with a network or two networks with each other. They ma






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






32. A method of multiprocessing that splits all operations equally among two or more processors.






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 special identifier shared by BSSs that belong to the same ESS.






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






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






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






38. 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






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






40. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its surface - positioned between the equator and the poles. These satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and c






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






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






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






44. The GUI environment for UNIX and Linux systems.






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






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






47. 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






48. The process of making a disk partition available.






49. 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.






50. The relationship between two domains on a Windows Server 2003 or Server 2008 network that allows a domain controller from one domain to authenticate users from the other domain.