HTTP Caching interview questions

1. A.the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries
2. B.a response header giving the timestamp a resource last changed, used for validation against a stored copy
3. C.a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
4. D.the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated

Answer + AI explanation with Pro

1. A.Conditional request
2. B.Cache-Control
3. C.ETag
4. D.s-maxage

Answer + AI explanation with Pro

1. A.Cache-Control — an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current
2. B.Cache-Control — a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
3. C.Cache-Control — the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated
4. D.Cache-Control — the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries

Answer + AI explanation with Pro

1. A.the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated
2. B.the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries
3. C.an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current
4. D.a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged

Answer + AI explanation with Pro

1. A.ETag
2. B.Conditional request
3. C.Last-Modified
4. D.max-age

Answer + AI explanation with Pro

1. A.ETag — a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
2. B.ETag — a response header giving the timestamp a resource last changed, used for validation against a stored copy
3. C.ETag — the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries
4. D.ETag — an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current

Answer + AI explanation with Pro

1. A.a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
2. B.a fetch that includes a validator so the server returns 304 Not Modified when the client's copy is still fresh
3. C.a response header giving the timestamp a resource last changed, used for validation against a stored copy
4. D.the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated

Answer + AI explanation with Pro

1. A.Cache-Control
2. B.max-age
3. C.s-maxage
4. D.Last-Modified

Answer + AI explanation with Pro

1. A.Last-Modified — an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current
2. B.Last-Modified — a fetch that includes a validator so the server returns 304 Not Modified when the client's copy is still fresh
3. C.Last-Modified — a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
4. D.Last-Modified — a response header giving the timestamp a resource last changed, used for validation against a stored copy

Answer + AI explanation with Pro

1. A.a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
2. B.a fetch that includes a validator so the server returns 304 Not Modified when the client's copy is still fresh
3. C.a response header giving the timestamp a resource last changed, used for validation against a stored copy
4. D.the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries

Answer + AI explanation with Pro

1. A.Conditional request
2. B.s-maxage
3. C.max-age
4. D.ETag

Answer + AI explanation with Pro

1. A.Conditional request — a fetch that includes a validator so the server returns 304 Not Modified when the client's copy is still fresh
2. B.Conditional request — an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current
3. C.Conditional request — the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries
4. D.Conditional request — a response header giving the timestamp a resource last changed, used for validation against a stored copy

Answer + AI explanation with Pro

1. A.a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
2. B.the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries
3. C.a response header giving the timestamp a resource last changed, used for validation against a stored copy
4. D.the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated

Answer + AI explanation with Pro

1. A.ETag
2. B.s-maxage
3. C.Cache-Control
4. D.Conditional request

Answer + AI explanation with Pro

1. A.s-maxage — a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
2. B.s-maxage — the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries
3. C.s-maxage — a response header giving the timestamp a resource last changed, used for validation against a stored copy
4. D.s-maxage — an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current

Answer + AI explanation with Pro

1. A.an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current
2. B.a fetch that includes a validator so the server returns 304 Not Modified when the client's copy is still fresh
3. C.the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated
4. D.the HTTP header that directs how, where, and for how long a response may be stored by clients and intermediaries

Answer + AI explanation with Pro

1. A.max-age
2. B.Last-Modified
3. C.ETag
4. D.s-maxage

Answer + AI explanation with Pro

1. A.max-age — a response header giving the timestamp a resource last changed, used for validation against a stored copy
2. B.max-age — a directive that overrides max-age specifically for shared intermediaries like CDNs while leaving browser lifetime unchanged
3. C.max-age — an opaque identifier a server assigns to a resource version so clients can ask whether their copy is still current
4. D.max-age — the directive specifying, in seconds, how long a response is considered fresh before it must be revalidated

Answer + AI explanation with Pro