Which of the following does Amazon DynamoDB perform?
Atomic increment or decrement on scalar values
Neither increment nor decrement operations
Only increment on vector values
Only atomic decrement operations
Explanations:
DynamoDB supports atomic increment or decrement operations on scalar values (e.g., numbers).
DynamoDB does support atomic increment and decrement operations.
DynamoDB does not support increment or decrement operations on vector values.
DynamoDB supports both increment and decrement operations, not just decrement.
I appraise that the answer is:
Atomic increment or decrement on scalar values