QUESTION: 9

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During testing, the queries sometimes return out-of-date information.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?

Specify a @cacgecacheable(cacheable: false) directive for each GraphQL query, making sure that the data returned is not cached, and is up to date
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
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.

Answer(s): B

Explanation:

This solution ensures that the data returned by the GraphQL queries is up to date, while also maintaining performance. By specifying a $cache(cacheidentity: Path\To\identityclass) directive for each GraphQL query, the relevant brands and associated products will be added as cache tags.

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QUESTION: 10

An Adobe Commerce Architect is investigating a case where some EAV product attributes are no longer updated.
· The catalog is composed of 20.000 products with 100 attributes each. · The product updates are run by recurring Adobe commerce imports that happen multiple times a day.
· The Architect finds an error in the logs that indicates an integrity constraint while trying to insert row with id 2147483647.
What is causing this error?

Magento framework uses INSERT on DUPLICATE, which leads to reaching the max limit of the increment of the column.
Integrity constraints were dropped after upgrading to the latest version, and the integrity checks were missed.
EAV attribute import uses REPLACE, which leads to reaching the max limit of the increment of the column

Answer(s): C

Explanation:

EAV attribute import uses the REPLACE statement, which deletes and inserts a new row with the same primary key value. This causes the auto-increment column to increase by one for each row, even if the row already exists. If the auto-increment column reaches its maximum value, which is 2147483647 for a signed INT, then any further REPLACE statement will fail with an integrity constraint violation error.

Reference:

EAV and extension attributes | Magento 2 Developer Documentation GitHub - techdivision/import-attribute: This library provides the functionality for the Magento 2 import of EAV attributes
Data integrity in JSON (B) when replacing EAV - Stack Overflow

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QUESTION: 11

An Adobe Commerce Architect is planning to create a new action that will add gift registry items to the customer's quote.
What should the Architect do to guarantee that private content blocks are updated?

Mark the controller by setting no-cache HTTP headers
Invalidate the status of gift registry indexers
Specify a new action in a sections.xml configuration file

Answer(s): C

Explanation:

Private content blocks are sections of the page that are specific to each customer and are not cached by the server. To update these blocks when a customer performs an action, such as adding a gift registry item to the quote, the Adobe Commerce Architect needs to specify the new action in a sections.xml configuration file. This file defines which blocks need to be updated for each action and how often they should be updated. By doing this, the Architect can ensure that the private content blocks are refreshed with the latest data from the server.

Reference:

Private content | Magento 2 Developer Documentation
Configure private content | Magento 2 Developer Documentation

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QUESTION: 12

An Adobe Commerce Architect needs to scope a bespoke news section for a merchants Adobe

Commerce storefront. The merchant's SEO agency requests that the following URL structure:
news/{date}/{article_url_key}, where {date} is the publication date of the article, and {article_url_key} is the URL key of the article.
The Architect scopes that a news entity type will be created. The date and URL key data will be stored against each record and autogenerated on save. The values will be able to be manually overridden.

The Architect needs to manage routing this functionality and adhere to best practice.
Which two options should the Architect consider to meet these requirements? (Choose two.)
Create a standard controller route and mapping the internal URLs (such as news/article/view/id/i) to rewrites that are generated on save and then stored in the URL rewrites table.
Create a custom router that runs before the standard router and matches the news portion of the URL, then looks for and loads a news article by matching the date and URL key parts of the URL
Create a plugin that intercepts Magento\Framework\App\Action: :(), looks for the news portion of the URL, and if it matches, loads the relevant news article by matching the URL date and URL key parts.
Create a standard controller route and an index/index controller class that loads the relevant news article by matching the URL date and URL key parts.

Answer(s): B,C

Explanation:

These two options are both valid ways to manage routing for the bespoke news section and adhere to best practice. Option B leverages the existing URL rewrite functionality of Adobe Commerce, which allows creating custom URLs for any entity type and storing them in the database. This option requires creating a standard controller route for the news entity type, such as news/article/view/id/i, where i is the news article ID. Then, on saving each news article, a rewrite rule is generated that maps the internal URL to the desired SEO-friendly URL, such as news/{date}/{article_url_key}. The rewrite rule is stored in the url_rewrite table, which is used by the standard router to match and redirect requests.
Option C involves creating a custom router class that implements \Magento\Framework\App\RouterInterface and runs before the standard router in the routing process. The custom router class can match the news portion of the URL and extract the date and URL key parts from it. Then, it can look for and load a news article that matches those values using a model or repository class. If a match is found, it can set the request parameters accordingly and dispatch the request to a controller action that renders the news article page.

Reference:

Routing | Adobe Commerce Developer Guide
URL Rewrites | Adobe Commerce Developer Guide
Custom Router | Adobe Commerce Developer Guide

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Free AD0-E722 Exam Braindumps (page: 3)

QUESTION: 9

Explanation:

QUESTION: 10

Explanation:

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QUESTION: 11

Explanation:

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QUESTION: 12

Explanation:

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