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






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






3. 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.






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






5. 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.






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






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






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






9. 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.






10. A routine of sequential instructions that runs until it has achieved its goal.






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






12. A service in which television signals from broadcast or cable networks travel over packet-switched networks.






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






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






15. A standard protocol for accessing network directories.






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






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






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






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






20. 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).






21. 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.






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






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






24. 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.






25. In LDAP naming conventions - the name of an object.






26. 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.






27. 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






28. 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






29. Any implementation of UNIX for which the source code is either unavailable or available only by purchasing a licensed copy from Novell (costing as much as millions of dollars).






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






31. A LAN that uses wireless connections for some or all of its transmissions.






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






33. 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.






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






35. An ITU standard that describes an architecture and a suite of protocols for establishing and managing multimedia services sessions on a packet-switched network.






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






37. 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.






38. A service in which video signals are compressed and delivered over the Internet in a continuous stream so that a user can watch and listen even before all the data has been transmitted.






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






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






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






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






43. A file access protocol. It runs over TCP/IP and is the standard file access protocol used by Windows operating systems.






44. 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.






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






46. The IEEE standard for a wireless networking technique designed to be compatible with 802.11b while using different encoding techniques that allow it to reach a theoretical maximum capacity of 54 Mbps. It uses the 2.4-GHz frequency band.






47. A technique for ensuring QoS by prioritizing traffic.






48. 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. |






49. 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






50. A user account that has unlimited privileges to resources and objects managed by a server or domain.