q16 If a user made two equivalent request at different dates, the first request on [Fri, 18 Oct 2020 14:19:41 GMT] and the second request on [Fri, 20 Oct 2020 14:19:41 GMT]. And theconcept of the caching is activated.What will happened if the concept of the caching is available based on the following response cased by the second user request:HTTP/1.1 200 OKDate: Fri, 20 Oct 2020 13:19:41 GMTServer: Microsoft IIS/8.5Cache-Control: max-age=3600, must-revalidateExpires: Fri, 20 Oct 2020 14:19:41 GMTLast-Modified: Mon, 19 Oct 2020 02:28:12 GMTETag: "Be86-410-3596fbbc"Content-Length: 1024Content-Type: text/htmlO a.The cache will communicate with the original server to fitch the update copy.O b. The cached document can be loaded to the client.O. The cache will return to the user the previous copy.O d. The cache will return to the user the previous copy. After that, the cache will communicate with the original server to see if there have been any changes.

I have provided solution in step2.

If a user made two equivalent request at different dates, the first request on [Fri, 18 Oct 2020 14:19:41 GMT) and the second request on [Fri, 20 Oct 2020 14:19:41 GMT] . And the concept of the caching is activated. What will happened if the concept of the caching is available based on the following response cased by the second user request:

If a user made two equivalent request at different dates, the first request on [Fri, 18 Oct 2020 14:19:41 GMT) and the second request on [Fri, 20 Oct 2020 14:19:41 GMT] . And the concept of the caching is activated. What will happened if the concept of the caching is available based on the following response cased by the second user request:

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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