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 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.






2. A series of two or more commands in which the output of prior commands is sent to the input of subsequent commands.






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






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






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






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






7. In the context of 802.11n wireless networking - the ability for access points to issue multiple signals to stations - thereby multiplying the signal's strength and increasing their range and data-carrying capacity.






8. 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.






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






10. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.






11. A method of multiprocessing that splits all operations equally among two or more processors.






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






13. In Microsoft terminology - the type of client/server network that relies on domains - rather than workgroups.






14. A representation of a thing or person associated with the network that belongs in the NOS directory.






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






16. 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.






17. A technique for ensuring QoS by prioritizing traffic.






18. 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.






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






20. 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.






21. 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.






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






23. A group of access points and associated stations (or basic service sets) connected to the same LAN.






24. 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).






25. An object in an operating system's directory - such as a printer or user - that does not contain other objects.






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






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






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






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






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






31. 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. |






32. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).






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






34. 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.






35. A connection from an orbiting satellite to an Earth-based receiver.






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






37. 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.






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






39. 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.






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






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






42. A popular remote file system created by Sun Microsystems - and available for UNIX and Linux operating systems.






43. The core of a UNIX or Linux system. This part of the operating system is loaded and run when you turn on your computer. It mediates between user programs and the computer hardware.






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






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






46. 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.






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






48. 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.






49. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.






50. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.