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






2. 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.






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






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






5. 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.






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






8. 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






9. A nonprofit industry association that owns the UNIX trademark.






10. 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).






11. 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.






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






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






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






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






16. In the context of wireless signal propagation - the phenomenon that occurs when an electromagnetic wave encounters an obstruction and splits into secondary waves. The secondary waves continue to propagate in the direction in which they were split. Th






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






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






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






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






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






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






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






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






25. 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).






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






27. 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.






28. 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.






29. The proprietary version of UNIX that comes from Bell Labs.






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






31. 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






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






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






34. The real-time reception and transmission of images and audio among two or more locations.






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






36. 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.






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






38. A character that enables you to combine existing commands to form new commands.






39. 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.






40. 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.






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






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






43. 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.






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






45. The description of object types - or classes - and their required and optional attributes that are stored in an NOS's directory.






46. 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.






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






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






49. 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.






50. 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).