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






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






3. A user account that has unlimited privileges to resources and objects managed by a server or domain.






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






5. 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.






6. 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.






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






8. The characteristic of wireless signals that follow a number of different paths to their destination (for example - because of reflection - diffraction - and scattering).






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






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






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






12. 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.






13. The GUI environment for UNIX and Linux systems.






14. 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






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






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






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






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






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






20. 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.






21. 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.






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






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






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






25. 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






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






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






28. A unique character string used to identify an access point on an 802.11 network.






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






30. The process of moving blocks of information - called pages - between RAM and into a page file on disk.






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






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






34. The exchange of information between the components of a network or system for the purposes of establishing - monitoring - or releasing connections as well as controlling system operations.






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






36. 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.






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






38. The software that sits between the client and server in a 3-tier architecture.






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






40. A logical representation of a networked printer's functionality.






41. A portion of the kernel that you can load and unload to add or remove functionality on a running UNIX or Linux system.






42. 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






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






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






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






46. A consortium of companies - including Sony Ericsson - Intel - Nokia - Toshiba - and IBM - that formally banded together in 1998 to refine and standardize Bluetooth technology.






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






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






49. An access point that provides routing functions.






50. 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.