Test your basic knowledge |

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. The signal in a television transmission that contains the brightness of the image.






2. The component that provides power for all components on the motherboard and internal to the PC case. Also called a power supply unit (PSU).






3. Aka file allocation table.






4. Aka Wired Equivalent Privacy.






5. Software that runs on the computers in a network and that receives services from servers.






6. Aka local area network.






7. The fine copper lines that are the electronic circuits through which power - data - and control signals travel on a circuit board.






8. The high-definition optical disc formatting standard - promoted by Toshiba - that was defeated by the Blu-ray Disc standard as the widely accepted high-definition standard.






9. The EXPLORER.EXE program. This program supports the entire Windows GUI. If EXPLORER.EXE is called up from inside the GUI - it opens a window for browsing your local disks and files.






10. A Windows GUI utility that allows an administrator to view the status of devices and install - remove - and update device drivers.






11. Aka motherboard.






12. 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 odd.






13. The role of the first EIDE drive on a PATA channel.






14. A network in which dedicated computers called servers store data and provide print services or other capabilities to computers running the appropriate client service or services.






15. A PCMCIA card standard that comes in two interfaces: PCIe and USB 2.0.






16. A connector commonly used for PC keyboards. It is much smaller than the original DIN connector.






17. This attack occurs when a massive number (up to hundreds of thousands) of computers send DoS attacks to a server - making it unavailable.






18. A method of memory error-checking that is more sophisticated than parity checking. Like parity checking - it adds an extra bit per byte. In addition - software in the system memory controller uses an algorithm to both detect and correct errors.






19. 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.






20. The use of a biometric for authentication.






21. The protocol for connecting optical drives and tape drives to an ATA channel.






22. A key on a laptop that is pressed along with the FN key to change display modes so the output will be only to the laptop's display - only to an external display - or simultaneously to both displays. The DISPLAY MODE key is normally a function key - s






23. A firewall service that inspects (or filters) each packet that enters or leaves the network - applying a set of security rules defined by a network administrator - and not allowing packets that fail inspection to pass between networks.






24. Aka access control list.






25. Aka digital subscriber line.






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






27. The digital versatile disc (DVD) encoding format used for data storage.






28. A metal strip used to cover an empty slot in order to preserve the correct air flow and keep dust out.






29. A video signaling method in which analog video information is transmitted as two or more discrete signals. Two general types of component video are RGB Video and S-Video.






30. A device found in laptops that monitors and regulates power usage. The features vary by manufacturer - but typically - they provide short-circuit protection - give "low battery" warnings - and can be configured to shut down the computer automatically






31. A wireless network standard that uses the 2.4 GHz band at a speed of up to 10 Mbps.






32. Aka Windows Internet Naming Service.






33. Aka Domain Name Service.






34. A cooling fan mounted directly on the case - as opposed to a power supply fan - which is inside the power supply.






35. The protocol used to allow client computers to pick up e-mail from mail servers. The current version is POP3.






36. A small group of computers communicating wirelessly with one another without the use of a centralized wireless access point (WAP).






37. A RAM module designed for subcompact and laptop computers. It is half the size of a SoDIMM module.






38. A protocol that allows routers to update their list of routes dynamically. RIP dates to the 1980s and is considered obsolete; even though - it has been updated a few times and is still supported by most routers.






39. Aka digital linear tape.






40. Aka virtual circuit.






41. Also called mirroring - this RAID array type provides fault tolerance because all the data is written identically to the two drives in the mirrored set.






42. In an operating system GUI - a tiny graphic representing an application - folder - disk - menu item - or other entity.






43. Aka systray.






44. A DVD drive that cannot write to but can read DVD discs.






45. A component of a CPU that is responsible for all logical and mathematical operations in the system.






46. Aka Wireless Fidelity.






47. A file attribute set by the OS when a file is created or modified. Backup software often removes this attribute when backing up a file in order to mark it as a backed-up file.






48. Memory chips that provide much slower access than SRAM chips but that can store several megabytes of data on a single chip (or hundreds of megabytes - or even gigabytes - when they are packaged together on a "stick").






49. Aka solid-state storage.






50. The difference in value between a display's brightest white and darkest black. Modern LCD displays have a contrast ratio of 500:1 or greater.