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Comptia A + Certification

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. [1] A device that is the central connecting point of a LAN. A hub is little more than a multiport repeater taking incoming signals on one port and repeating them to all other ports. Ethernet hubs have been largely replaced by Ethernet switches.. [2]






2. Memory chips that use a special Rambus channel that has a data transfer rate of 800 MHz. A double channel width results in a 1.6 GHz data transfer. RDRAM sticks use special RIMM slots.






3. An early technology for increasing the performance of DRAM.






4. In the FAT file system - the top-level directory in which the operating system stores information about files - including a reference to the FAT table so it knows where to find the file's contents on disk. The NTFS file system also has a root - or to






5. A hardware device or a program that monitors and records a user's every keystroke - usually without the user's knowledge.






6. Aka floating-point unit.






7. A more advanced and more expensive alternative to a port replicator. In addition to the ports normally found on a port replicator - a docking station may include full-size expansion slots and drives.






8. In the laser printing process - a wire that passes a small positive charge to paper as it travels through the printer. This positive charge attracts the negatively charged toner particles on the drum to the paper.






9. Memory locations within a CPU that is used as a scratch pad for calculations. Modern CPUs have dedicated registers for specific functions and general-purpose registers for multiple purposes.






10. Traditionally - this term only applied to the type of device described in the definition for analog modem. Now - it is also used for the digital devices in DSL and cable data communications.






11. Aka external cache.






12. The box that houses the main computer system.






13. A communications system now used for data communications via satellite that usually uses microwave radio frequencies and requires a dish antenna - receiver - and transmitter.






14. Aka zero insertion force (ZIF) socket.






15. A set of technologies that allow voice transmission over an IP network






16. Data communications over the cellular telecommunications networks.






17. An interface standard developed by the American National Standards Institute (ANSI) - it is used for both internal and external hard drives and optical drives as well as devices such as printers - modems - scanners - and many other peripherals.






18. RAM that doubles the rate of speed at which a standard SDRAM can process data. Also called DDR and DDR1. A stick of DDR1 SDRAM has 184 pins.






19. A DVI mode that supports both analog and digital video signals.






20. Aka Scalable Link Interface.






21. A command-line utility - installed with the TCP/IP protocol suite - that is used to troubleshoot DNS problems by querying DNS name servers and displaying the results of the queries.






22. Any writable mass storage device - removable or fixed in place.






23. An organization that created several PC standards - including the VGA connector.






24. Aka front side bus.






25. A TCP/IP protocol developed as a solution to the dwindling number of IP addresses on the Internet and that also serves to hide IP addresses on a private network from the Internet.






26. A memory error-checking method in which the parity bit is used to ensure that the total number of 1s in the data stream is even.






27. A KVM switch that uses software and special keyboard commands to switch among controlled computers. Also called anactive KVM switch.






28. Aka Post Office Protocol.






29. Two disk drives used for RAID 1 - in which data is written to both drives at the same time - a practice called mirroring.






30. A device - usually resembling a power strip - that protects equipment from power surges.






31. Aka central processing unit.






32. A plug designed for testing a specific port type (e.g. - serial - parallel - or USB). The plug does not connect to a cable but reroutes the sending pins to the receiving pins. Using special software on the computer - a loopback test is performed in w






33. In an IP configuration - the address of the local router that acts as a gateway from the local network to other IP networks.






34. A computer display that uses liquid crystal or plasma technology and does not require the bulk of a large picture tube. The screen enclosure can be as thin as one to two inches.






35. A parallel interface standard that supports bidirectional communication and transfer rates of up to 2 MBps.






36. The boot loader file in Windows 2000 and Windows XP. During the boot loader phase - NTLDR takes control of the system - switches the CPU to protected mode - starts the file system - and reads the BOOT.INI file.






37. A blanket term used for DVD discs regardless of the type of data they contain.






38. An LCD technology based on thin-film transistor (TFT) technology. An active matrix display has a transistor at every pixel - which enables much quicker display changes than passive matrix displays and produces a display quality comparable to a CRT.






39. A type of printer that uses solid - rather than liquid - ink.






40. In power supplies - the amount of wattage the power supply can handle.






41. A slide switch on the exterior of a PC power supply used to switch between two input voltages.






42. A device used to scan smart cards.






43. At first - a terminal was not much more than a display - a keyboard - and the minimal circuitry for connecting to the mainframe. Now - a terminal can be a computer running Windows or other operating system - plus terminal client emulation software th






44. A group of tests - stored in the BIOS and performed as a PC boots up - to check for the presence and function of system components.






45. A device that uses a measurement of a body part - such as a fingerprint or retina scan.






46. An operating system that runs on a network server and provides file sharing and access to other resources - account management - authentication - and authorization services.






47. A standardized document that contains general information - ingredients - and fire and explosion warnings as well as health - disposal - and safe transportation information about a particular product. Any manufacturer that sells a potentially hazardo






48. A scaled-down laptop in the ultra-portable category - designed for Internet access. Aka also ultra-portable and mini-notebook.






49. A card that fits into the PC Card interface - including both PC Card and CardBus cards. This type measures 85.6 millimeters long by 54 millimeters wide and 3.3 millimeters thick.






50. Information organized as a unit into a container. The author (creator) of a file controls how much information the file contains.







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