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. EHCI stands for






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






3. The maximum length of a USB cable is __________






4. Transmissions starting at the host arrive the hub's _______ _______






5. USB 3 supports a speed of up to __________






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






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






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






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






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






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






12. The USB cable must be shielded and _________ ______






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






14. How many contacts does each connector have?






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






16. USB 2 supports a speed of up to __________






17. HCD initiates transaction using both _______ ____ and _____






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






19. How many contacts does each connector have?






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






21. The USB cable must be shielded and _________ ______






22. The maximum length of a USB cable is __________






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






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






25. USB 1.1 supports a speed of up to __________






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






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






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






29. USB has no requirement for __________ _________






30. EHCI stands for






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






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






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






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






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






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






37. Bus traffic arriving at the hub must be _________






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






39. USB registers are indirectly accessed by ___ _____ ________






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






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. What contacts are longer on a USB connector?






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






44. USB 3 supports a speed of up to __________






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






46. The ________________ is attached to the cable






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






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






49. SOF stands for ________ __________ __________-






50. The ________________ is attached to the cable