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. USB 1 supports a speed of up to __________






2. USB 2 supports a speed of up to __________






3. USB has no requirement for __________ _________






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






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






6. The maximum length of a USB cable is __________






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






8. What are the USB system's two primary elements?






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






10. The ________________ is attached to the cable






11. How many contacts does each connector have?






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






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






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






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






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






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






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






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






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






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






22. HCD initiates transaction using both _______ ____ and _____






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






24. EHCI stands for






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






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






27. USB 3 supports a speed of up to __________






28. USB 1.1 supports a speed of up to __________






29. How many volts does the USB cable supply?






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






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






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






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






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






35. What contacts are longer on a USB connector?






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






37. What contacts are longer on a USB connector?






38. How many volts does the USB cable supply?






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






40. USB registers are indirectly accessed by ___ _____ ________






41. 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






42. USB 1.1 supports a speed of up to __________






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






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






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






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






47. The HCD schedules transactions by building a series of transaction lists called ________ _________






48. The ________________ is attached to the cable






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






50. What contacts are longer on a USB connector?