Question: You need to generate a unique, sequential identifier for each value stored in a Redis cluster. What do you do?

1. Implement a SortedSet object to generate a value.
2. Use the GUID keyword to generate a value.
3. Implement a List object to generate a value.
4. Use the INCR keyword to generate a value

Answer: The correct answer of the above question is Option D:Use the INCR keyword to generate a value