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Exam 70-487 topic 6 question 7 discussion

Actual exam question from Microsoft's 70-487
Question #: 7
Topic #: 6
[All 70-487 Questions]

DRAG DROP -
You need to ensure that data is cached.
How should you complete the markup? To answer, drag the appropriate XML segments to the correct locations. Each XML segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Each correct selection is worth one point.
NOTE:
Select and Place:

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Suggested Answer:
References:
https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies https://docs.microsoft.com/en-us/azure/azure-cache-for-redis/cache-web-app-howto
by Karel_Gott at March 22, 2020, 11:43 a.m.

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celaler481yektaracom
4 years, 4 months ago
private vary-by-header X-Customer vary-by-header The data is specific to use partner, the partner is identified by the X-Customer header. Private because it is specific to the partner, see also https://my.kualo.com/knowledgebase/109_litespeed-cache/1357_public-cache-vs.-private-cache.html or https://stackoverflow.com/questions/3492319/private-vs-public-in-cache-control
upvoted 3 times
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klassanov
4 years, 9 months ago
Why vary by Accept and not by X-Customer?
upvoted 3 times
zimzimzimma
4 years, 7 months ago
I think it should be X-Customer too. The question states 'use caching whenever possible' and the X-Customer header is included with every request to identify the partner so that's the one which should be used for caching. According to https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies the vary-by-header element contains the header name which should be X-Customer in my opinion.
upvoted 3 times
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Karel_Gott
5 years, 1 month ago
For me, answer seems to be correct: https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies
upvoted 4 times
zimzimzimma
4 years, 7 months ago
I think 'Accept' should be 'X-Customer', see my reply to klassanov.
upvoted 3 times
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Dreamchaser1980
4 years, 7 months ago
The X-Customer header identifies the partner. You dont want to cache the information based on the partner requesting the information. For example if trade show information is requested by partner A and another partner requests the same information, it does not make sense to retrieve the same information again and not use cached information. Therefore vary-by-header accept.
upvoted 1 times
zimzimzimma
4 years, 7 months ago
Why doesn't it make sense, the request is from another partner?
upvoted 2 times
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