Questions

1. Which time zone perspective is commonly used for date and time value normalization with no offset?
   1. UTC
   2. CET
   3. CEST
   4. BST
2. If the database time is 11:47 UTC and the client time zone is +02:00, which of the following is the correct expression for the client time?
   1. 13:47
   2. 11:47 UTC
   3. 11:47 +02:00
   4. 13:47 +02:00
3. Which calendar’s definition of a year (including leap years) most accurately represents the Earth’s rotation around the Sun?
   1. Roman calendar
   2. Julian calendar
   3. Gregorian calendar
   4. Normalized calendar
4. Try to solve this problem before moving on to learning about the core elements of Oracle database implementation in the next chapter:

My friend was 17 years old 2 days ago. Next year, he will be 20. What is the date today?