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. The complete database of hierarchical names (including host and domain names) used to resolve IP addresses with their hosts.






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






3. 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).






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






5. 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.






6. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.






7. A variable property associated with a network object. For example - a restriction on the time of day a user can log on is an attribute associated with that user object.






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






9. 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






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






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






12. 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.






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






14. A technique for ensuring QoS by prioritizing traffic.






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






16. A client/server environment that uses middleware to translate requests between the client and server.






17. A type of software license that - for a fixed price - allows any number of users in one location to legally access a program.






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






19. A protocol for communications and resource access between systems - such as clients and servers.






20. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.






21. In the context of applications - a licensing mode that limits access to an application to specific users or workstations.






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






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






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






25. Another term for the UNIX command interpreter.






26. 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






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






28. 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






29. A protocol used between media gateway controllers and media gateways. It is poised to replace MGCP on modern converged networks - as it supports a broader range of network technologies - including ATM. Also known as H.248.






30. 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






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






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






33. 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.






34. In SIP terminology - a server that responds to user agent clients' requests for session initiation and termination.






35. 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).






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






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






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






39. 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.






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






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






42. 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.






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






44. 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.






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






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






47. A proprietary implementation of the UNIX operating system by Sun Microsystems.






48. 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.






49. 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.






50. An attribute of an object that identifies the object separately from its related container(s) and domain.