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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. In the context of applications - a licensing mode that limits access to an application to specific users or workstations.






2. 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






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






4. 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.






5. 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.






6. A standard protocol for accessing network directories.






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






8. The organization of files and directories (or folders) on a disk in which directories may contain files and other directories. When displayed graphically - this organization resembles a treelike structure.






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






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






11. A group of hierarchically arranged domains that share a common namespace in the Windows Server 2003 or Server 2008 Active Directory.






12. 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






13. A Session layer call signaling protocol defined as part of ITU's H.323 multiservice network architecture. It is responsible for call or videoconference setup between nodes on a VoIP or video-over-IP network - indicating node status - requesting addit






14. In IEEE terminology - a group of stations that share an access point.






15. 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.






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






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






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






19. A type of wireless transmission in which signals travel over a single frequency or within a specified frequency range.






20. 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.






21. The capability for operating multiple logical servers






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






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






24. The relationship between two domains on a Windows Server 2003 or Server 2008 network that allows a domain controller from one domain to authenticate users from the other domain.






25. As specified in RFC 2205 - a QoS technique that attempts to reserve a specific amount of network resources for a transmission before the transmission occurs.






26. In 802.11 wireless networking - a type of frame issued by a station during active scanning to find nearby access points.






27. A telephone used for VoIP on a TCP/IP-based network.






28. A program (usually text-based) that accepts and executes system programs and applications on behalf of users. Often - it includes the ability to execute a series of instructions that are stored in a file.






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






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






31. On a SIP network - a server that maintains a database containing information about the locations (network addresses) of each user agent in its domain. When a user agent joins a SIP network - it transmits its location information to the SIP registrar






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






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






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






35. A type of antenna that issues and receives wireless signals with equal strength and clarity in all directions. This type of antenna is used when many different receivers must be able to pick up the signal - or when the receiver's location is highly m






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






38. In Microsoft terminology - the primary purpose of a Windows Server 2008 server.






39. 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.






40. 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.






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






42. The IEEE standard for a wireless networking technique that uses DSSS (directsequence spread spectrum) signaling in the 2.4-2.4835-GHz frequency range (also called the 2.4-GHz band). It separates the 2.4-GHz band into 14 overlapping 22-MHz channels an






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






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






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






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






47. The GUI environment for UNIX and Linux systems.






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






49. 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.






50. A Windows Server 2003 or Server 2008 computer that contains a replica of the Active Directory database.