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 complete database of hierarchical names (including host and domain names) used to resolve IP addresses with their hosts.






2. A proprietary NOS from Apple Computer that is based on a version of UNIX.






3. An end node on a network; used most often in the context of wireless networks. transponder






4. 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.






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






6. 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.






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






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






9. 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.






10. 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.






11. The method for organizing and managing objects associated with the network in the Windows Server 2003 and Server 2008 NOSs.






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






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






14. A special identifier shared by BSSs that belong to the same ESS.






15. A domain established within another domain in a Windows Server 2003 or Server 2008 domain tree.






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






17. 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).






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






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






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






21. 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.






22. The term used to describe software that is distributed with few restrictions and whose source code is freely available.






23. 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.






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






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






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






27. 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.






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






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






30. A client/server environment that uses middleware to translate requests between the client and server.






31. 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






32. The diffusion of a wireless signal that results from hitting an object that has smaller dimensions compared to the signal's wavelength.






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






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






35. 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.






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






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






38. The process a wireless station undergoes to find an access point.






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






40. In the DiffServ QoS technique - a forwarding specification that allows routers to assign data streams one of several prioritization levels.






41. 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.






42. 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.






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






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






45. 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.






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






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






48. The geographical area in which signals issued from an antenna or wireless system can be consistently and accurately received.






49. 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.






50. A device used on wireless LANs that transmits and receives wireless signals to and from multiple nodes and retransmits them to the rest of the network segment. Those can connect a group of nodes with a network or two networks with each other. They ma