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






2. 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.






3. 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.






4. A protocol suite codified by the IETF (in RFC 2543) as a set of Session layer signaling and control protocols for multiservice - packet-based networks.






5. 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).






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






7. 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.






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






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






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






11. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.






12. 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.






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






14. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.






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






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






17. Any type of video service - including IPTV - videoconferencing - and streaming video - that delivers video signals over packet-switched networks using the TCP/IP protocol suite.






18. On a SIP network - a server that maintains a database containing information about the locations (network addresses) of each user agent in its domain. When a user agent joins a SIP network - it transmits its location information to the SIP registrar






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






20. 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.






21. 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.






22. 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.






23. 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.






24. A logical representation of a networked printer's functionality.






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






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






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






28. 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.






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






30. The ability of a processor to perform multiple activities in a brief period of time (often seeming simultaneous to the user






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






32. 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.






33. In LDAP naming conventions - the name of any one of the domains to which an object belongs.






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






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






36. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.






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






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






39. The type of multitasking in which tasks are actually performed one at a time - in very brief succession. One program uses the processor for a certain period of time - then is suspended to allow another program to use the processor.






40. The capability for operating multiple logical servers






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






42. 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






43. 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.






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






45. 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.






46. A command-line utility for viewing and setting wireless interface parameters on Linux and UNIX workstations.






47. 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






48. A type of WLAN in which stations communicate with an access point and not directly with each other.






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






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