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. 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






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






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






4. The capability for operating multiple logical servers






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






6. 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).






7. The technique of splitting tasks among multiple processors to expedite the completion of any single instruction.






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






9. The term used to refer to a satellite that maintains a constant distance from a point on the equator at every point in its orbit.






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






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






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






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






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






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






16. A cost-savings benefit that results from organizations completing long-distance telephone calls over their packet-switched networks - thus bypassing tolls charged by common carriers on comparable PSTN calls.






17. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.






18. A method used by wireless stations to detect the presence of an access point. The station issues a probe to each channel in its frequency range and waits for the access point to respond.






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






20. A version of Linux packaged and distributed by Red Hat.






21. 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.






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






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






24. Currently - the most popular version of WiMAX. IEEE improved the mobility and QoS characteristics of the technology - making it better suited to VoIP and mobile phone users.






25. The provision of telephone service over the Internet.






26. A continuum of electromagnetic waves used for data and voice






27. A portion of the kernel that you can load and unload to add or remove functionality on a running UNIX or Linux system.






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






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






30. The computer instructions written in a programming language that is readable by humans.






31. 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.






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






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






34. A telephone switch used to connect calls within a private organization.






35. 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.






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






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






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






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






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






41. On a SIP network - a server that accepts requests for location information from user agents - then queries the nearest registrar server on behalf of those user agents. If the recipient user agent is in the SIP proxy server's domain - then that server






42. 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.






43. The action of associating a disk - directory - or device with a drive letter.






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






45. 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.






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






47. A standard protocol for accessing network directories.






48. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.






49. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






50. 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.