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. In the context of wireless networking - the communication that occurs between a station and an access point to enable the station to connect to the network via that access point.






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






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






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






5. An attribute of an object that identifies the object separately from its related container(s) and domain.






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






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






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






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






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






11. 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.






12. 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.






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






14. 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.






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






16. 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.






17. A wireless signal or path that travels directly in a straight line from its transmitter to its intended receiver.






18. 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.






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






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






21. 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.






22. 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.






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






24. A well-defined - self-contained subset of a process. U






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






26. A service that relies on a DSL connection to transmit packetized voice signals.






27. A small (usually home) network composed of personal communications devices.






28. 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.






29. A protocol that enables one system to access files on another system.






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






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






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






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






34. A 128-bit number generated and assigned to an object upon its creation in Active Directory.






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






36. The capability for operating multiple logical servers






37. 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. |






38. A standard protocol for accessing network directories.






39. 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.






40. 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.






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






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






43. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.






44. 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).






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






46. The memory that is logically carved out of space on the hard drive and added to physical memory (RAM).






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






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






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






50. A pictorial representation of computer functions and elements that - in the case of NOSs - enables administrators to more easily manage files - users - groups - security - printers - and other issues.