Exam AD0-E718 topic 1 question 21 discussion

Actual exam question from Adobe's AD0-E718

Question #: 21
Topic #: 1

An existing Adobe Commerce website is moving to a headless implementation.
The existing website features an “All Brands” page, as well as individual pages for each brand. All brand-related pages are cached in Varnish using tags in the same manner as products and categories.
Two new GraphQL queries have been created to make this information available to the frontend for the new headless implementation:

During testing, the queries sometimes return out-of-date information.
How should this problem be solved while maintaining performance?

A. Each GraphQL query’s resolver class should inject \Magento\GraphQlCache\Model\CacheableQuery and call setCacheValidity(true) on it as part of the resolver’s resolve function
B. Specify a @cache(cacheable: false) directive for each GraphQL query, making sure that the data returned is not cached, and is up to date
C. Specify a @cache(cacheIdentity: Path\\To\\IdentityClass) directive for each GraphQL query, corresponding to a class that adds cache tags for relevant brands and associated products

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Suggested Answer: B 🗳️

by crowleymr at Oct. 31, 2023, 7:26 a.m.

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crowleymr

1 year, 4 months ago

Selected Answer: C

The thing is that such content type as Brandh SHOULD be cached since it's something that doesn't change frequently. So making it not cacheable is not an option. For me the correct answer is C, implementing an identity interface

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Exam AD0-E718 topic 1 question 21 discussion

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crowleymr

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