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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. 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.






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






3. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|






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






5. The IEEE standard for a wireless networking technique designed to be compatible with 802.11b while using different encoding techniques that allow it to reach a theoretical maximum capacity of 54 Mbps. It uses the 2.4-GHz frequency band.






6. A wireless signaling technique in which a signal jumps between several different frequencies within a band in a synchronization pattern known to the channel's receiver and transmitter.






7. 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.






8. The process of making a disk partition available.






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






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






11. A nonprofit industry association that owns the UNIX trademark.






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






13. 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.






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






15. 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.






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






17. 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






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






19. A private switch that accepts and interprets both analog and digital voice signals (although some IP-PBXs do not accept analog lines). It can connect with both traditional PSTN lines and data networks. |






20. 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).






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






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






23. A method used by wireless stations to detect the presence of an access point. The station issues a probe to each channel in its frequency range and waits for the access point to respond.






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






26. The RAM chips installed on the computer's system board that provide dedicated memory to that computer.






27. The capability for operating multiple logical servers






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






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






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






31. 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.






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






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






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






35. 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






36. 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.






37. 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.






38. A computer configured to act like an IP telephone. SS7 (Signaling System 7) | A set of standards established by the ITU for handling call signaling on the PSTN (public switched telephone network).






39. 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.






40. In the context of wireless networking - the communication that occurs between a station and an access point to enable the station to connect to the network via that access point.






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






42. A logical representation of a networked printer's functionality.






43. 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.






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






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






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






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






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






49. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.






50. On a network following the H.323 standard - a gateway that provides translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols (for example - SS7 on the PSTN).







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