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






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






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






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






6. The Series B receptacle is attached to the ___________






7. EHCI stands for






8. The USB cable must be shielded and _________ ______






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






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






11. How many contacts does each connector have?






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






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






14. What contacts are longer on a USB connector?






15. 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






16. USB has no requirement for __________ _________






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






18. The ________________ is attached to the cable






19. The ________________ is attached to the cable






20. USB 1 supports a speed of up to __________






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






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






23. What provides attachment points for USB devices?






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






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






26. USB 3 supports a speed of up to __________






27. USBD stands for?






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






29. USB registers are indirectly accessed by ___ _____ ________






30. USB 1.1 supports a speed of up to __________






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






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






33. The Series B receptacle is attached to the ___________






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






35. How many volts does the USB cable supply?






36. USB registers are indirectly accessed by ___ _____ ________






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






38. How many contacts does each connector have?






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






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






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






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






43. Hubs are critical in the ____________________ of USB devices






44. The maximum length of a USB cable is __________






45. The maximum length of a USB cable is __________






46. How many volts does the USB cable supply?






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






48. USB registers are known as ____ _________ __________






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






50. EHCI stands for