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






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






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






4. A service that transmits faxes over a TCP/IP network.






5. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






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






7. 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.






8. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.






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. 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.






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






12. The GUI environment for UNIX and Linux systems.






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






14. 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






15. 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.






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






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






18. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.






19. A companion protocol to RTP - defined in RFC 3550 by the IETF - RTCP provides feedback on the quality of a call or videoconference to its participants.






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






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






22. 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.






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






24. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites.






25. 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.






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






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






28. The preferred Active Directory naming convention for objects when used in informal situations. This name looks like a familiar Internet address - including the positioning of the domain name after the @ sign.






29. 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






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






31. In general - a listing that organizes resources and correlates them with their properties. In the context of NOSs - a method for organizing and managing objects.






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






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






34. The nerve center for networks that adhere to H.323. IT authorize and authenticate terminals and gateways - manage bandwidth - and oversee call routing - accounting - and billing.






35. 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.






36. 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.






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






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






39. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.






40. A proprietary NOS from Apple Computer that is based on a version of UNIX.






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






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






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






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






45. The term used to refer to the different implementations of a particular UNIX or Linux system. For example - different distributions of Linux include Fedora - SUSE - and Ubuntu.






46. A means of collectively managing users' permissions and restrictions applied to shared resources.






47. 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.






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






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






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.