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






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






3. The action of associating a disk - directory - or device with a drive letter.






4. 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. |






5. 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.






6. 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.






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






9. The process of copying Active Directory data to multiple domain controllers. This ensures redundancy so that in case one of the domain controllers fails - clients can still log on to the network - be authenticated - and access resources.






10. A technique for ensuring QoS by prioritizing traffic.






11. In the context of IPTV - a device that decodes digital video signals and issues them to the television.






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






13. 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).






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






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






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






17. 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.






18. An access point that provides routing functions and is used as a gateway.






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






20. A UNIX service responsible for printing files placed in the printer queue by the lpr command.






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






22. A unique character string used to identify an access point on an 802.11 network.






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






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






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






26. An area covered by a wireless access point that provides visitors with wireless services - including Internet access.






27. An operating system's method of organizing - managing - and accessing its files through logical structures and software routines.






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






29. The RAM chips installed on the computer's system board that provide dedicated memory to that computer.






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






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






32. A portion of the kernel that you can load and unload to add or remove functionality on a running UNIX or Linux system.






33. A Transport layer protocol used with voice and video transmission. It operates on top of UDP and provides information about packet sequence to help receiving nodes detect delay and packet loss. It also assigns packets a timestamp that corresponds to






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






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






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






37. 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.






38. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.






39. 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.






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






41. A freely distributable implementation of a UNIX-type of system. Finnish computer scientist Linus Torvalds originally developed it.






42. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|






43. 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.






44. A computer configured to act like an IP telephone. SS7 (Signaling System 7) | A set of standards established by the ITU for handling call signaling on the PSTN (public switched telephone network).






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






46. 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.






47. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






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






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






50. An access point that provides routing functions.






Can you answer 50 questions in 15 minutes?



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