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Comptia Network + Wireless NOS Voip

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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 well-defined - self-contained subset of a process. U






2. 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.






3. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.






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






5. 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






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






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






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






9. 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.






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






11. An access point that provides routing functions.






12. The name of the primary file system used in most Linux distributions.






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 continuum of electromagnetic waves used for data and voice






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






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






17. 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.






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






19. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.






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






21. 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.






22. 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.






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






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






25. A transmission technique in which a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.






26. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.






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






28. A technique for ensuring QoS by prioritizing traffic.






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






30. 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.






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






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






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






34. A gateway that can translate IP fax data into analog fax data and vice versa.






35. 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.






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






37. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).






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






39. 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.






40. A wireless signal or path that travels directly in a straight line from its transmitter to its intended receiver.






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






42. 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).






43. 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.






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






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






46. 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






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






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






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






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







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