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Exam AZ-204 topic 5 question 14 discussion

Actual exam question from Microsoft's AZ-204

Question #: 14
Topic #: 5

DRAG DROP -
A web service provides customer summary information for e-commerce partners. The web service is implemented as an Azure Function app with an HTTP trigger.
Access to the API is provided by an Azure API Management instance. The API Management instance is configured in consumption plan mode. All API calls are authenticated by using OAuth.
API calls must be cached. Customers must not be able to view cached data for other customers.
You need to configure API Management policies for caching.
How should you complete the policy statement?
Select and Place:

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Suggested Answer:

by cgreene at Nov. 10, 2020, 4:42 a.m.

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cgreene

Highly Voted 4 years, 7 months ago

Internal Cache isn't available for Consumption plan. So shouldn't it be External (using Redis)?

upvoted 94 times

Egger1992

4 years, 7 months ago

Yes, you are right. In the feature-based comparison of the tiers, it says that built-in cache is not available. https://docs.microsoft.com/en-us/azure/api-management/api-management-features And here it says that "internal" would be using the built-in cache. https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies

upvoted 21 times

009bdaa

1 year ago

New link is https://learn.microsoft.com/en-us/azure/api-management/cache-lookup-policy#attributes

upvoted 2 times

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Ananth2020

Highly Voted 4 years, 7 months ago

Consumption Pricing Tier of API Management does not support Built-in Cache. Therefore caching-type should be set to "external". Reference: https://docs.microsoft.com/en-us/azure/api-management/api-management-features

upvoted 36 times

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4bd3116

Most Recent 9 months, 4 weeks ago

The correct Answer : <policies> <inbound> <base /> <cache-lookup caching-type="external" downstream-caching-type="private"> <vary-by-header>Authorization</vary-by-header> </cache-lookup> </inbound> <outbound> <base /> <cache-store duration="300" /> </outbound> </policies>

upvoted 2 times

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e3562ed

1 year, 1 month ago

Internal cache is not available in the Consumption tier of Azure API Management. You can use an external Azure Cache for Redis instead. You can also configure an external cache in other API Management service tiers.

upvoted 1 times

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neelkanths

1 year, 1 month ago

Got it on 20 April 2024...Marks > 900...All questions from examtopics 400 questions... Answer External - Private Authorization

upvoted 3 times

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BaoNguyen2411

1 year, 10 months ago

got this question on 29/07/2023

upvoted 5 times

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uffuchsi

2 years, 3 months ago

Caching type must be external since consumption plan does not support internal caching. Downstream caching type must be private as it is not shared. Vary by header must be authorization as it is cached per customer. https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies

upvoted 10 times

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adilkhan

2 years, 4 months ago

https://learn.microsoft.com/en-us/azure/api-management/cache-lookup-policy

upvoted 1 times

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OPT_001122

2 years, 7 months ago

External Private Authorization

upvoted 13 times

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Eltooth

2 years, 11 months ago

External Private Authorization https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies#attributes https://docs.microsoft.com/en-us/azure/api-management/api-management-sample-cache-by-key#architecture

upvoted 11 times

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Sandeep12093

3 years ago

Yes, I agree consumption plan doesn't support internal caching.. Check microsoft pricing page for api management

upvoted 3 times

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adone

3 years, 3 months ago

I don't find any example with private downstream and a vary by header. For me the vary by header only make sense for public downstream. I opt for: External Public Authorization In normal situation, I would have put private downstream without a vary by header.

upvoted 2 times

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oescm

3 years, 4 months ago

Got this one 02/2022. Went with: External Private Authorization

upvoted 17 times

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leonidn

3 years, 5 months ago

Private is because cached data is isolated between customers External is because internal is not a feature of the Consumption plan Authorization to enable caching responses per value of specified header

upvoted 9 times

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Gautam47

3 years, 9 months ago

Cache should be external

upvoted 3 times

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chandru1dev

3 years, 10 months ago

internal caching-type Choose between the following values of the attribute: - internal to use the built-in API Management cache, - external to use the external cache as described in Use an external Azure Cache for Redis in Azure API Management, - prefer-external to use external cache if configured or internal cache otherwise. https://docs.microsoft.com/en-us/azure/api-management/api-management-caching-policies

upvoted 2 times

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kondapaturi

3 years, 11 months ago

Extermal - When you look at the pricing plans for the Azure API management, when it comes to the Consumption plan, it only supports external cache. Private - we need to ensure that the data is not available to other customers, we need to use the cache type of Private caching. Authorization - the calls are being authenticated by OAuth, the caching can vary by the Authorization header.

upvoted 13 times

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