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. 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.






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






3. 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.






4. The core of a UNIX or Linux system. This part of the operating system is loaded and run when you turn on your computer. It mediates between user programs and the computer hardware.






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






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






7. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.






8. 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






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






10. A multiprocessing method that assigns each subtask to a specific processor.






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






12. 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.






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 logical representation of multiple - hierarchical levels in a directory.






15. 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.






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






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






18. A telephone switch used to connect calls within a private organization.






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






20. The proprietary version of UNIX that comes from Bell Labs.






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






22. 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






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






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






25. In IEEE terminology - a group of stations that share an access point.






26. 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).






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






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






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






30. A small (usually home) network composed of personal communications devices.






31. The GUI environment for UNIX and Linux systems.






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






33. 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.






34. A well-defined - self-contained subset of a process. U






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






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






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






38. A service that transmits faxes over a TCP/IP network.






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






40. An attribute of an object that identifies the object separately from its related container(s) and domain.






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






42. The security relationship between domains in the same domain tree in which one domain grants every other domain in the tree access to its resources and - in turn - that domain can access other domains' resources.






43. The real-time reception and transmission of images and audio among two or more locations.






44. 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






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






46. 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.






47. A wireless networking standard that uses FHSS (frequency hopping spread spectrum) signaling in the 2.4-GHz band to achieve a maximum throughput of either 723 Kbps or 2.1 Mbps - depending on the version. IT was designed for use primarily with small of






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






49. 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.






50. 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