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. The ________________ is attached to the cable






2. The Series B receptacle is attached to the ___________






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






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






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






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






7. USB registers are indirectly accessed by ___ _____ ________






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






9. How many contacts does each connector have?






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






11. The maximum length of a USB cable is __________






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






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






14. USB 3 supports a speed of up to __________






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






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






17. USB has no requirement for __________ _________






18. Bus traffic arriving at the hub must be _________






19. SOF stands for ________ __________ __________-






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






21. HCD initiates transaction using both _______ ____ and _____






22. The maximum length of a USB cable is __________






23. EHCI stands for






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






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






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






27. EHCI stands for






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






29. 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






30. The root hub is located on the ___________






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






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






33. The USB cable must be shielded and _________ ______






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






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






36. USB 2 supports a speed of up to __________






37. USBD stands for?






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






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






40. The USB cable must be shielded and _________ ______






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






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






43. USB 2 supports a speed of up to __________






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






45. USB registers are known as ____ _________ __________






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






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






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






49. USB registers are indirectly accessed by ___ _____ ________






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