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 service that transmits faxes over a TCP/IP network.






2. 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.






3. 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.






4. 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.






5. A type of wireless system in which the locations of the transmitter and receiver are static.






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






7. A special identifier shared by BSSs that belong to the same ESS.






8. The method for organizing and managing objects associated with the network in the Windows Server 2003 and Server 2008 NOSs.






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






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






11. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.






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






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






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






15. 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.






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






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






18. The term used to refer to the different implementations of a particular UNIX or Linux system. For example - different distributions of Linux include Fedora - SUSE - and Ubuntu.






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






20. A type of software license that - for a fixed price - allows any number of users in one location to legally access a program.






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






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






23. Another term for the UNIX command interpreter.






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






25. 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.






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






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






28. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.






29. 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.






30. 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.






31. 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.






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






33. 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






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






35. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.






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






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






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






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






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






41. A protocol for communications and resource access between systems - such as clients and servers.






42. A UNIX or Linux file system information storage area that holds all details about a file. This information includes the size - the access rights - the date and time of creation - and a pointer to the actual contents of the file.






43. 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.






44. 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






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






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






47. 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






48. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






49. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.






50. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.