Amazon CloudFront is used as a CDN (content delivery network) for servers deployed at on-premises data centers. Origin servers deployed at on-premises data centers are adding the Cache-Control header. Management is looking for a setting in Amazon CloudFront that will control cache duration in CloudFront Cache irrespective of the values defined in the Cache-Control header.
Which header can be used with Amazon CloudFront to specify the time for which objects remain in the CloudFront cache?

Answer options:

A.Whitelist Headers
B.Query String Caching Headers.
C.Origin Cache Headers.
D.Origin Custom Headers.

Correct Answer: C
Object Cache Headers are used to specify the minimum & maximum time an object is cached in an Amazon CloudFront Cache. Values specified in these headers will be used for object caching irrespective of values in Cache-Control headers defined by the origin servers.
Option A is incorrect as these headers will be used to specify which content needs to be cached by Amazon CloudFront.
Option B is incorrect as these headers are used to cache different versions of the content based upon values specified in the query string.
Option D is incorrect as this is an invalid header for specifying the period for object caching in Amazon CloudFront. These headers are used to add custom headers while sending requests to the origin.
For more information on object caching with Amazon CloudFront, refer to the following URL,
https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/distribution-web-values-specify.html#DownloadDistValuesObjectCaching