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






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






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






4. EHCI stands for






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






6. Bus traffic arriving at the hub must be _________






7. USB 1 supports a speed of up to __________






8. 2 USB Data Transfers: __________ and System View






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






10. What contacts are longer on a USB connector?






11. Under XP - USB activity can be monitored and controlled by using ______________






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






13. Under XP - USB activity can be monitored and controlled by using ______________






14. The maximum length of a USB cable is __________






15. How many volts does the USB cable supply?






16. USB 3 supports a speed of up to __________






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






18. the USB driver provides __________ and ___________ for client software drivers






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






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






21. What provides attachment points for USB devices?






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






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






24. The maximum length of a USB cable is __________






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






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






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






28. How many contacts does each connector have?






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






30. The Series B receptacle is attached to the ___________






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






32. USBD stands for?






33. HCD initiates transaction using both _______ ____ and _____






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






35. When writing to a USB device - the host controller reads data from the host _________ __________






36. USB 1.1 supports a speed of up to __________






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






38. USB has no requirement for __________ _________






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






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






41. SOF stands for ________ __________ __________-






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






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






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






45. What contacts are longer on a USB connector?






46. What conversion must happen before the data can be forwarded to root hub?






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






48. EHCI stands for






49. The ________________ is attached to the cable






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