Test your basic knowledge |

Usb Technology

Subject : it-skills
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 a Series A connector - one end of the cable is __________ attached to the device






2. In a Series A connector - one end of the cable is __________ attached to the device






3. Device attachment is automatically detected - Software automatically configured - Device available for immediate use. This describes ______ _______ technology






4. The Series B receptacle is attached to the ___________






5. USB registers are indirectly accessed by ___ _____ ________






6. HCD scheduling depends on ___ of transaction - ______ requirements of the device and _______ ______ of other USB devices






7. _____ ___________ issue requests to the USB driver using I/O Request Packets (IRPs)






8. USB registers are known as ____ _________ __________






9. The maximum length of a USB cable is __________






10. USB 2 supports a speed of up to __________






11. How many contacts does each connector have?






12. What was developed by and is licensed by Intel for USB 2.0?






13. In a Series A connector - one end of the cable is __________ attached to the device






14. How many volts does the USB cable supply?






15. What contacts are longer on a USB connector?






16. In basic USB Transaction - each transaction starts with a ______ ______






17. USB standards define a __________ __________ type to attach any USB device to a PC






18. USB registers are known as ____ _________ __________






19. Hubs are critical in the ____________________ of USB devices






20. _____- data + data ground - List - in order - the purpose of each contact in a USB connector 1 - 2 - 3 - 4






21. The hub controller contains ___________ read by software that identify the device as a hub






22. The maximum length of a USB cable is __________






23. Up to ___ devices can be attached to single USB port






24. Device attachment is automatically detected - Software automatically configured - Device available for immediate use. This describes ______ _______ technology






25. The Series B receptacle is attached to the ___________






26. A root hub consists of a hub _________ and hub __________






27. The characteristics of an USB device are detected by the _____ ______ during device configuration






28. The ________________ is attached to the cable






29. What transfer is used to transfer specific requests to USB devices






30. The Host Controller executes the frame lists at ___ intervals






31. USB 1.1 supports a speed of up to __________






32. If an error is found - it is forwarded to the _______ ___________






33. USB system software consists of USBD and ___ _____ _________ ________






34. USB devices enter a "suspend" state after ______________ of no bus activity






35. Bus traffic arriving at the hub must be _________






36. The polling rate of what type of transfer must be frequent enough that data is not lost but not so frequent as to waste bandwidth






37. The ________________ is attached to the cable






38. Transmissions starting at the host arrive the hub's _______ _______






39. EHCI stands for






40. EHCI stands for






41. USB devices contain _________ - which is another word for ____________






42. The USB cable must be shielded and _________ ______






43. In ther case of error - transactions are what?






44. Three operations Serial Bus Controllers using Device Manager under Windows will allow you to examine and /or control: _______ - USB Root Hub - USB Devices






45. 2 USB Data Transfers: __________ and System View






46. USB 1 supports a speed of up to __________






47. USB devices enter a "suspend" state after ______________ of no bus activity






48. The USB cable must be shielded and _________ ______






49. USB has no requirement for __________ _________






50. The hub controller _________ the powering and enabling of ports