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






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






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. The name given to the public software project to implement a complete - free source code implementation of UNIX. It also refers to the collection of UNIX-inspired utilities and tools that are included with Linux distributions.|






5. A computer that manages multiple media gateways and facilitates the exchange of call control information between these gateways.






6. A means of collectively managing users' permissions and restrictions applied to shared resources.






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






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






9. On a SIP network - a server that accepts requests for location information from user agents - then queries the nearest registrar server on behalf of those user agents. If the recipient user agent is in the SIP proxy server's domain - then that server






10. A cost-savings benefit that results from organizations completing long-distance telephone calls over their packet-switched networks - thus bypassing tolls charged by common carriers on comparable PSTN calls.






11. A method of satellite Internet access in which a subscriber receives data via a satellite downlink transmission - but sends data to the satellite via an analog modem (dialup) connection.






12. The capability for operating multiple logical servers






13. 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.






14. 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






15. In Microsoft terminology - the type of client/server network that relies on domains - rather than workgroups.






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






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






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






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






20. 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.






21. 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.






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






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






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






25. A type of wireless system in which the locations of the transmitter and receiver are static.






26. In SIP terminology - a server that responds to user agent clients' requests for session initiation and termination.






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






28. A file on the hard drive that is used for virtual memory.






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






30. 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.






31. 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.






32. A popular remote file system created by Sun Microsystems - and available for UNIX and Linux operating systems.






33. 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.






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






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






36. In Microsoft terminology - a group of interconnected computers that share each others' resources without relying on a central file server.






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






38. Currently - the most popular version of WiMAX. IEEE improved the mobility and QoS characteristics of the technology - making it better suited to VoIP and mobile phone users.






39. A file system developed by Microsoft and used with its Windows NT - Windows 2000 Server - Windows Server 2003 - and Windows 2008 operating systems.






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






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






42. 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.






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






44. A type of antenna that issues wireless signals along a single direction - or path.






45. A connection from an orbiting satellite to an Earth-based receiver.






46. A type of wireless transmission in which lower-level signals are distributed over several frequencies simultaneously.






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






48. A technique for ensuring QoS by prioritizing traffic.






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






50. 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.