AD0-E717 sample questions

Question 1

**Case Study:**

A high-volume retailer, 'UrbanStyle', is running on Adobe Commerce Cloud Pro. During peak sales events, they experience significant slowdowns and timeouts, particularly during the checkout process after the shipping information step. The site uses a custom module that makes a real-time API call to an external service to validate shipping addresses and retrieve delivery estimates. This API call can sometimes take up to 5 seconds to respond.

The current architecture consists of a standard Pro cluster with 3 web nodes, Redis for cache and session, and Fastly CDN. New Relic analysis confirms that the transaction `Controller/Checkout/Onepage/SaveShippingInformation` has a very high average response time, with most of the time spent in the external API call.

Management has mandated that the user experience must be improved, and checkout timeouts must be eliminated, without removing the address validation feature. Which solution best addresses the root cause of the performance issue while meeting all requirements?
```mermaid
sequenceDiagram
participant C as Customer Browser
participant M as Magento
participant Ext as External API

C->>M: POST /checkout/shipping-information
M->>M: Start SaveShippingInformation transaction
Note over M,Ext: Synchronous API call - up to 5s delay
M->>Ext: ValidateAddress(address)
Ext-->>M: Validation Response
M->>M: Process response, save quote
M-->>C: JSON response with payment methods
```

Accepted Answer

Refactor the custom module to perform the address validation asynchronously. Modify the `SaveShippingInformation` controller action to publish a message to a RabbitMQ queue with the address data. A separate message queue consumer will process the validation. The frontend will immediately proceed, and any validation issues will be flagged later.

Answer

Optimize the API integration by adding a local cache for validation results. Use a plugin on the address save controller to check the cache before making the external API call, reducing latency for repeated validations of the same address.

Answer

Request an upsizing of the Adobe Commerce Cloud Pro cluster to 6 web nodes and increase the PHP-FPM timeouts. This will allow the server to handle more concurrent long-running requests without timing out.

Answer

Move the API call to the frontend. Use JavaScript to make a direct AJAX call to the external validation service from the customer's browser when they finish typing their address. The 'Next' button would be disabled until a successful response is received.

Question 2

You are working with a new developer who needs to be able to deploy code and view logs on Magento Commerce Cloud.What must you do to give them access? A.In the .magento.app.yaml file, add their email under Users. They need to enter their SSH public key.B.Add their SSH public key to a file named .ssh/authorized_keys and deploy the change.C.In the Cloud Project Web UI, click Add User to add their email. They need to enter their SSH public key.D.Add a Magento admin user for them and paste the SSH public key into their user's SSH Key field, which is available only on Magento Commerce Cloud.

Accepted Answer

Add their SSH public key to a file named .ssh/authorized_keys and deploy the change.

Answer

In the .magento.app.yaml file, add their email under Users. They need to enter their SSH public key.

Answer

In the Cloud Project Web UI, click Add User to add their email. They need to enter their SSH public key.

Answer

Add a Magento admin user for them and paste the SSH public key into their user's SSH Key field, which is available only on Magento Commerce Cloud.

Question 3

You have a Starter project. Your code is ready for testing in the Staging environment, but you need the latest data from Production.What do you do to update the Staging environment? A.Log in to the Project Web UI, choose the Staging environment, and click SyncB.Log in to the Project Web UI, choose the Staging environment, and click MergeC.Checkout the Staging branch and use the git push origin -f commandD.Checkout the Production environment and use the magento-cloud sync CLI command

Accepted Answer

Log in to the Project Web UI, choose the Staging environment, and click Merge

Answer

Log in to the Project Web UI, choose the Staging environment, and click Sync

Answer

Checkout the Staging branch and use the git push origin -f command

Answer

Checkout the Production environment and use the magento-cloud sync CLI command

Question 4

You need to specify the admin password using an environment variable. You have created an environment variable env:ADMIN_PASSWORD with a valid password. When attempting to log in to the Magento Admin it is not accepting the new password.How do you correct the environment variable? A.The Sensitive option is checked by default and must be disabledB.The env:ADMIN_PASSWORD variable can only be used for an initial installationC.The environment variable should not have the env: prefixD.The ADMIN_PASSWORD variable should be configured via .magento.env.yaml

Accepted Answer

The environment variable should not have the env: prefix

Answer

The Sensitive option is checked by default and must be disabled

Answer

The env:ADMIN_PASSWORD variable can only be used for an initial installation

Answer

The ADMIN_PASSWORD variable should be configured via .magento.env.yaml

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