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






2. A transmission technique in which a signal's bits are distributed over an entire frequency band at once. Each bit is coded so that the receiver can reassemble the original signal upon receiving the bits.






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






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






5. A Session layer call signaling protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for call or videoconference setup between nodes on a VoIP or video-over-IP network - indicating node status - requesting addit






6. A proprietary implementation of the UNIX system distributed by IBM.






7. 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.






8. 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






9. 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.






10. A GUI tool provided with Windows Server 2008 that enables network administrators to manage server roles - features - resources - and users from a single interface.






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






12. 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.






13. 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.






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






15. 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.






16. A logical receptacle for holding objects with similar characteristics or privileges in an NOS directory. Containers form the branches of the directory tree.






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






18. 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.






19. A type of antenna that issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly m






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






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






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






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






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






25. 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






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






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






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






29. 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.






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






31. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.






32. 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.






33. A change in a wireless signal's strength as a result of some of the electromagnetic energy being scattered - reflected - or diffracted after being issued by the transmitter.






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






35. 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.






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






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






38. A group of hierarchically arranged domains that share a common namespace in the Windows Server 2003 or Server 2008 Active Directory.






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






40. 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.






41. The process of making a disk partition available.






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






43. 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.






44. A protocol used between media gateway controllers and media gateways. It is poised to replace MGCP on modern converged networks - as it supports a broader range of network technologies - including ATM. Also known as H.248.






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






46. In Windows Server 2003 or Server 2008 networking - the single domain from which child domains branch out in a domain tree.






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






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






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






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