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






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






3. USB registers are indirectly accessed by ___ _____ ________






4. How many contacts does each connector have?






5. HCD initiates transaction using both _______ ____ and _____






6. What provides attachment points for USB devices?






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






8. How many contacts does each connector have?






9. EHCI stands for






10. What contacts are longer on a USB connector?






11. The Series B receptacle is attached to the ___________






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






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






14. USB 3 supports a speed of up to __________






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






16. How many volts does the USB cable supply?






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






18. 2 USB Data Transfers: __________ and System View






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






20. USB 3 supports a speed of up to __________






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






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






23. When writing to a USB device - the host controller reads data from the host _________ __________






24. The ________________ is attached to the cable






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






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






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






28. HCD scheduling depends on ___ of transaction - ______ requirements of the device and _______ ______ of other USB devices






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






30. How many volts does the USB cable supply?






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






32. Bus traffic arriving at the hub must be _________






33. The maximum length of a USB cable is __________






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






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






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






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






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






39. USB registers are known as ____ _________ __________






40. EHCI stands for






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






42. USB has no requirement for __________ _________






43. The USB cable must be shielded and _________ ______






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






45. USB 2 supports a speed of up to __________






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






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






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






49. 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






50. What is a USB endpoint address an example of?