Explain Idempotence and its usage.

1.	Explain Idempotence and its usage.
Answer» The TERM 'IDEMPOTENCE' refers to the repeated performance of a task despite the same outcome. In other words, it is a situation in which a task is performed repeatedly with the END RESULT remaining the same. Usage: When the remote service or DATA source receives instructions more than once, Idempotence ensures that it will process each request once.

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