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 continuum of electromagnetic waves used for data and voice






2. In the context of wireless networking - the communication that occurs between a station and an access point to enable the station to connect to the network via that access point.






3. 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.






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






5. 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






6. 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.






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






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






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






10. A UNIX command that places files in the printer queue.






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






12. A type of satellite that orbits the Earth roughly 6000 to 12 -000 miles above its surface - positioned between the equator and the poles. These satellites can cover a larger area of the Earth's surface than LEO satellites while using less power and c






13. 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.






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






15. A LAN that uses wireless connections for some or all of its transmissions.






16. 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.






17. A type of server on a Windows Server 2003 or Server 2008 network that does not hold directory information and - therefore - cannot authenticate users.






18. The term used to refer to a satellite that maintains a constant distance from a point on the equator at every point in its orbit.






19. The capability for operating multiple logical servers






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






21. 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.






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






23. 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.






24. 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.






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






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






27. In the context of wireless networking - the process of a station establishing a connection (or associating) with a different access point.






28. A gateway that can translate IP fax data into analog fax data and vice versa.






29. A type of phone that includes a screen and can decode compressed video and interpret transport and signaling protocols necessary for conducting videoconference sessions.






30. 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.






31. 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.






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






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






35. A record of a user that contains all of her properties - including rights to resources - password - user name - and so on.






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






37. 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.






38. 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.






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






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






41. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.






42. 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.






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






44. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.






45. The provision of telephone service over a packet-switched network running the TCP/IP protocol suite.






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






47. 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. |






48. An IEEE standard for wireless MANs. Its networks may use frequencies between 2 and 66 GHz. Their antennas may operate in a line-of-sight or non-line-of-sight manner and cover 50 kilometers (or approximately 30 miles). Its connections can achieve a ma






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






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