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. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






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 software that sits between the client and server in a 3-tier architecture.






4. A UNIX service responsible for printing files placed in the printer queue by the lpr command.






5. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.






6. In the context of IPTV - a device that decodes digital video signals and issues them to the television.






7. 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.






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






9. A standard protocol for accessing network directories.






10. A service in which a video stored as an encoded file is delivered to a viewer upon his request.






11. A character that enables you to combine existing commands to form new commands.






12. In IEEE terminology - the identifier for a BSS (basic service set).






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






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






15. An access point that provides routing functions.






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






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






18. 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






19. 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






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






21. A type of wireless transmission in which signals travel over a single frequency or within a specified frequency range.






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






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






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






25. 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






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






27. An end node on a network; used most often in the context of wireless networks. transponder






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






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






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






31. A multiprocessing method that assigns each subtask to a specific processor.






32. 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.






33. 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.






34. 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.






35. 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. |






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






37. The relationship between two domains on a Windows Server 2003 or Server 2008 network that allows a domain controller from one domain to authenticate users from the other domain.






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






39. The exchange of information between the components of a network or system for the purposes of establishing - monitoring - or releasing connections as well as controlling system operations.






40. The proprietary version of UNIX that comes from Bell Labs.






41. In the DiffServ QoS technique - a forwarding specification that allows routers to assign data streams one of several prioritization levels.






42. 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.






43. A form of filename substitution - similar to the use of wildcards in Windows and DOS.






44. 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.






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






46. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.






47. 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






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






49. The signals made of electromagnetic energy that travel through the atmosphere.






50. A type of WLAN in which stations communicate with an access point and not directly with each other.