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 type of wireless system in which the receiver can be located anywhere within the transmitter's range. This allows the receiver to roam from one place to another while continuing to pick up its signal.






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






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






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






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






6. 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.






7. In general - a listing that organizes resources and correlates them with their properties. In the context of NOSs - a method for organizing and managing objects.






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






9. A service that runs on a client workstation and determines whether the client's request should be handled by the client or the server.






10. A service that uses the ATM network access method (and ATM cells) to transmit voice signals over a network.






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






12. The term used to refer to the different implementations of a particular UNIX or Linux system. For example - different distributions of Linux include Fedora - SUSE - and Ubuntu.






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






14. 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.






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






16. 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.






17. A part of the organizational structure of an operating system's directory that contains objects or other organizational units.






18. The IEEE standard for a wireless networking technique that may issue signals in the 2.4- or 5-GHz band and can achieve actual data throughput between 65 and 600 Mbps. It accomplishes this through several means - including MIMO - channel bonding - and






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






20. In wireless networking - the process that describes a station moving between BSSs without losing connectivity.






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






22. The brand of computer central processing unit invented by Apple Computer - IBM - and Motorola - Inc. - and used in IBM servers.






23. 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.






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






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






26. 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.






27. 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.






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






29. On a network following the H.323 standard - a gateway that provides translation between network devices running H.323 signaling protocols and devices running other types of signaling protocols (for example - SS7 on the PSTN).






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






31. In the context of 802.11n wireless technology - the combination of two 20-MHz frequency band to create one 40-MHz frequency band that can carry more than twice the amount of data that a single 20-MHz band could. It's recommended for use only in the 5






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






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






34. A client or server operating system originally developed by researchers at AT&T Bell Laboratories in 1969.






35. The GUI environment for UNIX and Linux systems.






36. 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.






37. A computer that provides support for multiple H.323 terminals (for example - several workstations participating in a videoconference) and manages communication between them.






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






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






40. A representation of a thing or person associated with the network that belongs in the NOS directory.






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






42. A type of wireless LAN in which stations communicate directly with each other (rather than using an access point).






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






44. A long form of an object's name in Active Directory that explicitly indicates the object name - plus the names of its containers and domains. It includes a DC (domain component) - OU (organizational unit) - and CN (common name).






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






46. 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.|






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






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






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






50. 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.