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How to Identify and Classify Dates
  • 1. What is the first step in identifying a date?
A) Assume the date is invalid.
B) Ignore context entirely.
C) Consult an expert immediately.
D) Look for numerical patterns or separators.
  • 2. Which of these is a common separator used in dates?
A) %
B) $
C) #
D) /
  • 3. What does 'YYYY' typically represent in date formats?
A) Four-digit year.
B) Seconds.
C) Day of the week.
D) Month number.
  • 4. What does 'MM' typically represent in date formats?
A) Milliseconds.
B) Year of the century.
C) Two-digit month.
D) Day of the year.
  • 5. What does 'DD' typically represent in date formats?
A) Day of the month as a word.
B) Minute of the hour.
C) Two-digit day.
D) Hour of the day.
  • 6. Which of the following is the ISO 8601 date format?
A) YYYY/MM/DD
B) YYYY-MM-DD
C) MM-DD-YYYY
D) DD-MM-YYYY
  • 7. What does the ordinal indicator 'th' signify in a date like '4th'?
A) The number of days left in the month.
B) The hour of the day.
C) The temperature on that day.
D) The rank of the day within the month.
  • 8. What is the Gregorian calendar primarily based on?
A) Lunar cycle.
B) Planetary alignments.
C) Random events.
D) Solar year.
  • 9. What is the Julian calendar primarily based on?
A) Solar year (with less accurate leap year rules).
B) Planetary alignments.
C) Lunar cycle.
D) Random events.
  • 10. What is a 'day of the year' format?
A) The day of the week.
B) Always the first day of a specific month.
C) A number from 1-366 representing the day.
D) The number of days left in the year.
  • 11. What is epoch time?
A) Seconds since January 1, 1970 UTC.
B) Milliseconds since the Big Bang.
C) Days since the formation of Earth.
D) Hours since the start of the universe.
  • 12. What is a leap year?
A) A year with 365 days.
B) A year with 367 days.
C) A year with 364 days.
D) A year with 366 days.
  • 13. Why are leap years necessary?
A) To make February longer.
B) To account for the difference between the solar year and the calendar year.
C) Because of a decree by Julius Caesar.
D) To confuse historians.
  • 14. In 'March 15, 44 BC', what calendar is most likely being used?
A) Islamic Calendar
B) Gregorian Calendar
C) Mayan Calendar
D) Julian Calendar
  • 15. How can you differentiate between US (MM/DD/YYYY) and European (DD/MM/YYYY) date formats?
A) Presence of ordinal indicators.
B) Font style.
C) Color of the text.
D) Context and day/month values.
  • 16. What is a 'quarter' in date terms?
A) A four-month period.
B) A three-month period.
C) A six-month period.
D) A one-month period.
  • 17. Which date format is commonly used in programming?
A) YY/MM/DD
B) DD-MM-YY
C) MM/DD/YY
D) ISO 8601 (YYYY-MM-DD)
  • 18. What does AM/PM signify?
A) Ante Meridiem/Post Meridiem, before/after noon.
B) Always/Perhaps Midnight.
C) Atypical Morning/Perfectly Magnificent.
D) Absolute Minute/Past Minute.
  • 19. Which date is written correctly?
A) 27 October, 2023rd
B) October 27nd, 2023
C) October 27, 2023
D) October 27th, 2023
  • 20. What is the Unix timestamp?
A) Number of days since the birth of Unix.
B) Number of seconds that have elapsed since January 1, 1970 (midnight UTC/GMT).
C) The number of CPU cycles since the invention of the computer.
D) A secret code known only to Unix programmers.
  • 21. How do you handle ambiguous dates like '01/02/03'?
A) Ignore the date.
B) Assume it's always January 2nd, 2003.
C) Consider the context and expected format.
D) Reroll the date.
  • 22. What does 'CE' stand for?
A) Calculated Era
B) Common Era
C) Current Epoch
D) Christian Era
  • 23. What does 'BCE' stand for?
A) Before Common Era
B) Best Case Estimate
C) Before Current Epoch
D) Before Christian Era
  • 24. Which of the following is NOT a valid date?
A) April 30, 2024
B) February 30, 2024
C) January 31, 2024
D) December 31, 2024
  • 25. What is the purpose of a date parser?
A) To print dates on paper.
B) To automatically create new dates.
C) To calculate the age of a document.
D) To convert date strings into a structured date object.
  • 26. Which of the following affects date calculations?
A) Font size.
B) Network speed.
C) Color of the paper.
D) Time zones.
  • 27. What is a 'week number'?
A) The week's position within the year.
B) The day of the week.
C) The number of days in the week.
D) A random number assigned to each week.
  • 28. Which calendar system is primarily lunar?
A) Islamic calendar.
B) Mayan calendar.
C) Gregorian calendar.
D) Julian calendar.
  • 29. How many days are in a common year?
A) 365
B) 364
C) 366
D) 367
  • 30. What should you do if a date format is unknown?
A) Research common formats and regional conventions.
B) Guess randomly.
C) Always assume the current date.
D) Delete the data.
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