Adobe Commerce Developer Expert (AD0-E709) Free Practice Test

Question 1

An Adobe Commerce developer has a requirement to add some settings which are unique to a specific system and it will be dumped to app/etc/env.php when theCLI command php bin/magento app:config:dump is used.
How would the developer achieve this?
A)

B)

C)

A. Option C

B. Option A

C. Option B

Correct Answer: C

Question 2

An Adobe Commercedeveloper is working on an Acme_Exceptions module which is supposed to overwrite logic inside some of Magento native exceptions such as
\Magento\Frame-work\Exception\NoSuchEntityException
or\Mogento\Framwork\GraphQ1\Exception\GrephQlInputException , The module is open-source and will be available on packagist.org.
The build of the codebase of projects, including the module, will sometimes take place in docker containers with full access to filesystem. but then it is deployed to a read-only filesystem.
Which two approaches would the developer use to overwrite logic in those exceptions? (Choose two.)

A. 1. Create a version of those exceptions inside the module using new namespace, e.g.
\Acme\Exceptions\Exception\NoSuchEntityException .
2. Create a di.xmi file inside of the module and use <preference> to make the system use own versions instead of native versions.

B. 1. Create a version of Those exceptions inside the module using the original namespaces and classes, e.g. \Magento\Framework\Exception\NoSuchEntityException .
2. Create a data patch copying those exceptions to their original destinations like vendor/magento/ framework /except Ion/ to replace original files.

C. 1. Create a version of those exceptions inside the module using the original namespaces and classes, e.g.
\Magento\Framewrk\Exception\NoSuchEntityException .
2. Use composer's extra > nap node to copy those exceptions to their original destinations like vendor/Magento/framework/exception/ to replace original files.

D. 1. Create a version of those exceptions inside the module using the original namespaces and Classes, e.g. \Magento\Framework\Exceptioin\NoSuchEntityException .
2. Use composer's scripts > post-install-and and scripts > post-update-cmd nodes to copy those exceptions to their original destinations like vendor/Magento/framework/exception/ to replace original files.

Correct Answer: A,C

Question 3

You are setting up a brand new Magento installation for a merchant who is migrating from Magento 1 to Magento 2.
Keeping in mind upgradability and the need to customize, which one do you choose?

A. Create a new Magento instance using composer create-project

B. Clone the magento/magento2 GitHub repository

C. Create a new Magento instance by using the bin/magento install command

D. Run php bin/magento setup:migrate <path-to-m1-installation> <new-version> command

Correct Answer: A

Question 4

You are building CLI that use the console to create a customer account with our custom command as like php bin/magento customer:user:create --customer-firstname="Mahin" --customer-lastname="Rahman" --customer-email="[email protected]" --customer-password="mahin@123" --website="1"
using: protected function configure() { $this->setName('customer:user:create') - >setDescription('Create new customer') ->setDefinition($this->getOptionsList()); } protected function getOptionsList(){ return [
------------------]; } Which below Option are not required in blank? (Choose 2)

A. new InputOption(Customer::KEY_PASSWORD, null, InputOption::VALUE_REQUIRED, '(Required) Customer password'),

B. new InputOption(Customer::KEY_WEBSITE, null, InputOption::VALUE_REQUIRED, '(Required) Website ID'),

C. new InputOption(Customer::KEY_STORE, null, InputOption::VALUE_REQUIRED, '(Required) Store ID'),

D. new InputOption(Customer::KEY_SENDEMAIL, 0, InputOption::VALUE_OPTIONAL, '(1/0) Send email? (default 0)')

E. new InputOption(Customer::KEY_EMAIL, null, InputOption::VALUE_REQUIRED, '(Required) Customer email'),

F. new InputOption(Customer::KEY_LASTNAME, null, InputOption::VALUE_REQUIRED, '(Required) Customer last name'),

G. new InputOption(Customer::KEY_FIRSTNAME, null, InputOption::VALUE_REQUIRED, '(Required) Customer first name'),

Correct Answer: C,D

Question 5

Your module adds a new controller class which will return a JSON response.
What will be the return type of the execute method?

A. No return needed, an object that can be converted to JSON must be set as the Response body

B. An instance of \Magento\Framework\Controller\Result\Json

C. The string value of \Zend_Json::encode()

D. You should implement a new API endpoint instead of returning JSON from a controller

Correct Answer: B

Question 6

You are reviewing a Magento module and see a directory named Service.
What can you determine from this directory's name?

A. It is where API-related configuration resides

B. It is where the module's service contracts are stored

C. It is where the API response cache is stored

D. You need to review the files in this folder to understand its purpose

Correct Answer: D

Question 7

A logistics company with an Adobe Commerce extension sends a list of reviewed shipment fees to all its clients every month in a CSV file. The merchant then uploads this CSV file to a "file upload" field in admin configuration of Adobe Commerce.
What are the two requirements to display the "file upload' field and process the actual CSV import? (Choose two.)

A. Add a new field in etc.adminhtml/system.xml in my_Module with the file type:

B. Add a new field in etc/adminhtml\system.xml in My_Module with a new custom type:

C. Add a custom backend model which extends /Magento\Framework\App\Config\Value and call afterSave:

D. Create an observer that listens to the adminhtml_config_system_save_after

Correct Answer: A,C

Question 8

You are creating a module that will be sold on the Magento Marketplace. You wish for this module to be easily extensible, and decide to add the capability for other developers to utilize extension attributes.
What is the minimum update necessary to enable this capability?

A. Create an ExtensionAttributeInterface for each model.

B. Configure your models in etc/extension_attributes.xml

C. Add the getExtensionAttributes() method and implement ExtensionAttributesInterface in each model.

D. Ensure each model extends Magento\Framework\Model\AbstractExtensibleModel.

Correct Answer: C

Question 9

In a custom module you are adding a new field to the store configuration. The field will set the value for the configuration path mycompany/mymodule/myoption.
How do you supply the default value for that configuration option?

A. In the config/default/mycompany/mymodule/myoption node in the etc/config.xml file

B. In the system/mycompany/group/mymodule/field/myoption node in the etc/system.xml file

C. In the menu/default/section/group/field node in the file etc/adminhtml/menu.xml

D. In the system/section/group/field/value node in the etc/adminhtml/system.xml file

Correct Answer: A

Question 10

You are adding a child node to the product.info block using the XML:

How will this block be rendered?

A. Child block nodes are automatically rendered as HTML

B. By calling $block->getChildHtml('mynewblock') in the parent block's template

C. Automatically if the block class Custom implements the _toHtml method

D. The layout is invalid since block elements cannot be nested

Correct Answer: B

Question 11

You are building an tool that imports products from an ERP. There are 20 columns of additional information that are associated with each product. This extra information must also be associated with an update time to know when to refresh the data.
Keeping maintainability in mind, how do you build this into Magento?

A. Override the Product model and add the fields.

B. Create 20 EAV attributes and check their updated_at column.

C. Utilize an extension attribute.

D. Create a separate model and build code to associate the two record types.

Correct Answer: C

Question 12

An Adobe Commerce Developer wishes to add an action to a pre-existing route, but does not wish to interfere with the functionality of the actions from the original route.
What must the developer do to ensure that their action works without any side effects in the original module?

A. Add the action into to the Controllers/front.name/ in My_Module. Magento will automatically detect and use it.

B. Inject the new action into the standard router constructor's Sactionlist parameter.

C. In the route declaration, use the before or after parameters to load their module in before or after the original module.

Correct Answer: C

Question 13

What are two functions of a resource model? (Choose two.)

A. It loads lists of entity models

B. It executes create, retrieve, update and delete actions for an entity

C. It maps an entity to one or more database rows

D. It is made available in the Magento API for the purpose of data manipulation

Correct Answer: B,C

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Adobe Commerce Developer Expert (AD0-E709) Free Practice Test