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






2. USB 2 supports a speed of up to __________






3. What is a USB endpoint address an example of?






4. The Series B receptacle is attached to the ___________






5. How many contacts does each connector have?






6. How many contacts does each connector have?






7. The root hub is located on the ___________






8. The USB cable must be shielded and _________ ______






9. USB 3 supports a speed of up to __________






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






11. List - in order - the color of each USB cable: red ____ green black






12. What contacts are longer on a USB connector?






13. USB is a ____ _______ method of adding peripherals to PC's






14. USB 1 supports a speed of up to __________






15. List - in order - the color of each USB cable: red ____ green black






16. HCD initiates transaction using both _______ ____ and _____






17. Bus traffic arriving at the hub must be _________






18. EHCI stands for






19. When the target device responds to a host initiated transaction - it must transmit a response ________






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






21. The maximum current a USB cable will deliver is _________






22. USB root hub and the target devices perform __________ ___________ during each transaction






23. What provides attachment points for USB devices?






24. The USB cable must be shielded and _________ ______






25. The ________________ is attached to the cable






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






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






28. The Series B receptacle is attached to the ___________






29. 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






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






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






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






33. Isochronous Transfer are used by applications that require a ______ _______ ______






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






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






36. Each connected USB device is assigned an address ___________ ______ to the USB system






37. The host controller builds a _______ ____________ when reading from a USB device






38. USB 1.1 supports a speed of up to __________






39. The root hub controls _______ to USB ports - enables and disables _____ - _________ devices attached to ports and sets and reports _______ ______ associated with each port






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






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






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






43. Every transaction on the USB originates at the ____ ____






44. The maximum length of a USB cable is __________






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






46. In Bulk Transfers does a slow delivery result in lost or corrupted data?






47. The maximum length of a USB cable is __________






48. EHCI stands for






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






50. _____________ is the hub port connector while the Series A plug is attached to the cable