A web application sends information about message integrity and content life time to the client. Which two HTTP headers should be used in sending the client information? (Choose two.)
CD - Correct
The Expires HTTP header contains the date/time after which the response is considered expired.
Invalid expiration dates with value 0 represent a date in the past and mean that the resource is already expired.
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Expires
The Content-MD5 header is used by servers to provide a message-integrity check for the message body. Only an origin server or requesting client should insert a Content-MD5 header in the message. The value of the header is an MD5 digest[6] of the (potentially encoded) message body.
The value of this header allows for an end-to-end check on the data, useful for detecting unintentional modifications to the data in transit. It is not intended to be used for security purposes.
https://www.oreilly.com/library/view/http-the-definitive/1565925092/re17.html
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