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






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






3. In the context of wireless - the phenomenon that occurs when an electromagnetic wave encounters an obstacle and bounces back toward its source.






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






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






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






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






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






9. Any implementation of UNIX for which the source code is either unavailable or available only by purchasing a licensed copy from Novell (costing as much as millions of dollars).






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






11. A version of Linux packaged and distributed by Red Hat.






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






13. 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.






14. 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.






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






16. A customizable - graphical network management interface introduced with Windows Server 2003 and incorporated in Window Server 2008's Server Manager.






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






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






19. An exchange in which a wireless station requests the exclusive right to communicate with an access point and the access point confirms that it has granted that request.






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






21. In the context of Windows Server 2003 or Server 2008 - a collection of domain trees that use different namespaces. It allows for trust relationships to be established between trees.






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






23. 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






24. In the context of wireless networking - a frame issued by an access point to alert other nodes of its existence.






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






26. A Session layer control protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for controlling a session between two nodes. For example - it ensures that the two nodes are communicating in the same format.






27. 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.






28. An object in an operating system's directory - such as a printer or user - that does not contain other objects.






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






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






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






32. 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.






33. 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






34. The preferred Active Directory naming convention for objects when used in informal situations. This name looks like a familiar Internet address - including the positioning of the domain name after the @ sign.






35. A routine of sequential instructions that runs until it has achieved its goal.






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






37. 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.






38. 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.






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






40. 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.






41. The brand of computer central processing unit invented by and used in Sun Microsystems servers.






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






43. A type of satellite Internet access service in which a subscriber sends and receives data to and from the Internet over the satellite link. This is a symmetrical technology - in which both upstream and downstream throughputs are advertised to reach 4






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






45. 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.






46. 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).






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






48. A licensing mode that allows a fixed quantity of clients to use one software package simultaneously.






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






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