Which header in an HTTP request instructs the content server to return information on whether the requested object has been modified since the last visit?

The correct answer is C. Cache-control: max-age. See the full explanation below for the reasoning.

Question

Which header in an HTTP request instructs the content server to return information on whether the requested object has been modified since the last visit?

Options

AIF5tf If-Modified-Since
BPragma: no-mod
CCache-control: max-age
DPragma: no-cache

How the community answered

(23 responses)

A
13% (3)
B
4% (1)
C
78% (18)
D
4% (1)

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