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 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.






2. 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.






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






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






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






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






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






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






9. 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.






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






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






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






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






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






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






16. 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






17. 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.






18. 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).






19. 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.






20. 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.






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






22. 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






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






24. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.






25. A file on the hard drive that is used for virtual memory.






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






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






28. On a network following the H.323 standard - any node that provides audio - visual - or data information to another node.






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






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






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






32. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.






33. A proprietary implementation of the UNIX system distributed by IBM.






34. 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).






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






36. A type of wireless transmission in which lower-level signals are distributed over several frequencies simultaneously.






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. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.






39. 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.






40. In Windows Server 2003 or Server 2008 networking - the single domain from which child domains branch out in a domain tree.






41. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.






42. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.






43. 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






44. The IEEE standard for a wireless networking technique that uses multiple frequency bands in the 5-GHz frequency range and provides a theoretical maximum throughput of 54 Mbps.






45. A technique for ensuring QoS by prioritizing traffic.






46. 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.






47. The IEEE standard for a wireless networking technique that uses DSSS (directsequence spread spectrum) signaling in the 2.4-2.4835-GHz frequency range (also called the 2.4-GHz band). It separates the 2.4-GHz band into 14 overlapping 22-MHz channels an






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






49. 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






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