Microsoft Interview Question Developer Program Engineers
Country: India
Interview Type: Written Test
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Depends on the specs of the fingerprint reader, anyway here are some cases(can be valid or invalid based on what is allowed per spec)
- O November 13, 20121. Register any of your fingers(say thumb of your right hand).
2. Swipe with registered finger on log-in from locked screen.
3. Swipe with registered finger on log-in after restart.
4. Swipe registered hand in up-to-down, down-to-up, right-to-left, left-to-right, circular motion, wave it above without contact, with gloves on, with oily fingers etc.
5. Try with left thumb(counterpart of registered) with above scenarios.
6. Try with all other fingers of the hand.
7. Try with palm of hand.
8. Try with partial contact of registered finger - left portion up, right portion up, top portion up, bottom portion up
9. Try with back of the registered finger.
10. Try with registered composite keys(ex. more than one finger) this will spawn it's own set of scenarios.
11. Try swiping with registered or with unregistered fingers when user is logged in(not locked)
12. Try after screensaver locks the screen.
13. Try after installing updates for finger print reader software or other software.
14. Try with hardware updates.
15. Try with mold created from your registered finger.
16. Slow speed swipe, medium speed swipe, high speed swipe.
17. Try repeated locking and swiping to see if it stops working after a certain point.
18. Check in combination with other authentication options such as card reader.
19. Try when computer is in sleep mode.
20. Try after hitting ctrl + alt + del or without hitting those keys.
21. Try with power cord on or on battery mode