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






2. A type of trust relationship in which two domains that belong to different NOS directory trees are configured to trust each other.






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






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






5. 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).






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






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






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






9. A private switch that accepts and interprets both analog and digital voice signals (although some IP-PBXs do not accept analog lines). It can connect with both traditional PSTN lines and data networks. |






10. In the DiffServ QoS technique - a forwarding specification that assigns each data stream a minimum departure rate from a given node. This technique circumvents delays that slow normal data from reaching its destination on time and in sequence.






11. A service that relies on a DSL connection to transmit packetized voice signals.






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






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






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






15. 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.






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






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






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






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






20. An internal or externally attached adapter that converts analog telephone signals into packet-switched voice signals and vice-versa.






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






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






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






24. 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.






25. A computer configured to act like an IP telephone. SS7 (Signaling System 7) | A set of standards established by the ITU for handling call signaling on the PSTN (public switched telephone network).






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






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






28. 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.






29. 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.






30. 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






31. 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.






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






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






34. An area of a computer's hard drive that is logically defined and acts as a separate disk drive.






35. The term used to describe the recently released standards for highthroughput - long-distance digital data exchange over wireless connections.






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






37. 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.






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






39. The signals made of electromagnetic energy that travel through the atmosphere.






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






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






42. 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






43. 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).






44. 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.






45. An open source software package that provides complete Windows-style file- and printer-sharing capabilities.






46. 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.






47. The security relationship between domains in the same domain tree in which one domain grants every other domain in the tree access to its resources and - in turn - that domain can access other domains' resources.






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






49. 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.






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