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






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






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






4. The GUI environment for UNIX and Linux systems.






5. 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.






6. 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






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






8. 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.






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






10. A type of satellite that orbits the Earth with an altitude between 100 and 900 miles - closer to the Earth's poles than the orbits of either GEO or MEO satellites.






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






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






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






14. A wireless signaling technique in which a signal jumps between several different frequencies within a band in a synchronization pattern known to the channel's receiver and transmitter.






15. 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.






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. The capability for operating multiple logical servers






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






19. A group of users - servers - and other resources that share account and security policies through a Windows Server 2003 or Server 2008 NOS.






20. 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.






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






22. The name of the primary file system used in most Linux distributions.






23. A connection from an Earth-based transmitter to an orbiting satellite.






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






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






26. 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.






27. In the context of wireless networking - the process in which a station listens to several channels within a frequency range for a beacon issued by an access point.






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






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






30. 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.






31. A service in which video signals are compressed and delivered over the Internet in a continuous stream so that a user can watch and listen even before all the data has been transmitted.






32. 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.






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






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






35. 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.






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






37. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






38. 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).






39. A technique for ensuring QoS by prioritizing traffic.






40. 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.






41. The relative strength over a three-dimensional area of all the electromagnetic energy an antenna sends or receives.






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






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






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






45. 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.






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






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






48. 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.






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






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