Test your basic knowledge |

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 freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.






2. 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.






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






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 signals made of electromagnetic energy that travel through the atmosphere.






7. 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.






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






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






10. 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






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






12. 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.






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






14. 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.






15. 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).






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






17. On a SIP network - a server that maintains a database containing information about the locations (network addresses) of each user agent in its domain. When a user agent joins a SIP network - it transmits its location information to the SIP registrar






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






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






20. A group of hierarchically arranged domains that share a common namespace in the Windows Server 2003 or Server 2008 Active Directory.






21. The process of moving blocks of information - called pages - between RAM and into a page file on disk.






22. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.






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






24. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.






25. 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






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






27. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.






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






29. 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.






30. 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






31. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.






32. A type of satellite Internet access service in which a subscriber sends and receives data to and from the Internet over the satellite link. This is a symmetrical technology - in which both upstream and downstream throughputs are advertised to reach 4






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






34. 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






35. A type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.






36. A standard protocol for accessing network directories.






37. The provision of telephone service over the Internet.






38. 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.






39. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.






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






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






42. 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.






43. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.






44. The process of making a disk partition available.






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






46. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.






47. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






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






49. 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. |






50. 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.