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. Hubs are critical in the ____________________ of USB devices






2. Transaction instructions generated by the ____ ____________ are forwarded to the root hub






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






4. USBD stands for?






5. The Series B receptacle is attached to the ___________






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






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






8. The USB cable must be shielded and _________ ______






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






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






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






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






13. USB has no requirement for __________ _________






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






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






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






17. The USB cable must be shielded and _________ ______






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






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






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






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






22. What contacts are longer on a USB connector?






23. HCD initiates transaction using both _______ ____ and _____






24. EHCI stands for






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






26. 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






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






28. The USB cable must be shielded and _________ ______






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






30. Bus traffic arriving at the hub must be _________






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






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






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






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






35. How many contacts does each connector have?






36. USB 2 supports a speed of up to __________






37. The maximum length of a USB cable is __________






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






39. USB 2 supports a speed of up to __________






40. The root hub is located on the ___________






41. USB registers are indirectly accessed by ___ _____ ________






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






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






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






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






46. How many volts does the USB cable supply?






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






48. A root hub consists of a hub _________ and hub __________






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






50. EHCI stands for