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. 2 USB Data Transfers: __________ and System View






2. The USB cable must be shielded and _________ ______






3. the IRP ______ ________ to or from a target USB device






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






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






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






7. USB 1 supports a speed of up to __________






8. USB has no requirement for __________ _________






9. USB 1.1 supports a speed of up to __________






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






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






12. Bulk - Isochronous - Interrupt - and Control are types of what?






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






14. EHCI stands for






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






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






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






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






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






20. 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






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






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






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






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






25. USB registers are indirectly accessed by ___ _____ ________






26. How many contacts does each connector have?






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






28. USB 3 supports a speed of up to __________






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






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






31. USBD stands for?






32. Two key functions of USB System Software: _______ - Bandwidth Allocation - or Transaction scheduling






33. USB 2 supports a speed of up to __________






34. SOF stands for ________ __________ __________-






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






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






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






38. HCD initiates transaction using both _______ ____ and _____






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






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






41. The maximum length of a USB cable is __________






42. How many volts does the USB cable supply?






43. How many volts does the USB cable supply?






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






45. The maximum length of a USB cable is __________






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






47. The maximum length of a USB cable is __________






48. The USB cable must be shielded and _________ ______






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






50. What contacts are longer on a USB connector?