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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. The provision of telephone service over the Internet.






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






3. In the context of wireless networking - an assessment of client requirements - facility characteristics - and coverage areas to determine an access point arrangement that will ensure reliable wireless connectivity within a given area.






4. 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.






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






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






7. 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.






8. As specified in RFC 2205 - a QoS technique that attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.






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






10. 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.






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






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






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






14. A type of permission - or right - that is passed down from one group (the parent) to a group within that group (the child).






15. A collection of H.323 terminals - gateways - and MCUs that are managed by a single H.323 gatekeeper.






16. 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






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






18. 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.






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






20. The process of moving blocks of information - called pages - between RAM and into a page file on disk.






21. 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.






22. A telephone used for VoIP on a TCP/IP-based network.






23. 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.






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






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






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






27. 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






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






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






30. A type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.






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






32. 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.






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






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






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






36. 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.






37. The centralized management of multiple types of network-based communications - such as voice - video - fax - and messaging services.






38. 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.






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






40. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).






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






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






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






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






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






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






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






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






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






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