Magento2 Cert questions dump package 1.

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1. Magento’s Product repository uses the getList($filter)method retrieve a list of products. As you are preparing to retrieve a list of products, you need to specify what products to retrieve. Which of the following classes will help you formulate the filter?

\Magento\Framework\Api\RepositorySearchBuilder

\Magento\Framework\Api\AppSearchBuilder

\Magento\Framework\Api\SearchCriteriaBuilder

\Magento\Framework\Api\SearchFilterBuilder

2. Merchant want shopping cart can be shared among different websites. Which configurations are needed? (choose 3)

Stores > Configuration >Sales > Checkout > Shopping Cart > Shopping Cart Scope = Global

Stores > Configuration > Customers > Persistent Shopping Cart > General Options > Enable Persistence = Yes

Stores > Configuration > Customers > Customer Configuration > Account sharing options = Global

Stores > Configuration > General > Web > Session Validation Settings > Use SID on Storefront – Yes

Shared products across websites on the Websites section of the edit product page

3. You need to make the customer’s prefix attribute required. Keep upgradeability in mind, how do you make this change?

$eavSetup->updateAttribute(Customer::ENTITY, $attributeId, ‘is_required’, true);

Add true to etc/customer_attributes.xml

Manually adjust the database

Run the bin/magento customer:attribute:require prefix

4. You need to programmatically create a new customer attribute. What steps are required to do this? (choose 3)

Add the attribute to the customer_eav_attribute table.

Create the attribute with \Magento\Eav\Setup\EavSetup::addAttribute

Set the source_model value for the attribute.

Save the attribute.

Specify the used_in_forms data for the attribute.

5. You are writing a new admin form uiComponent. The table that you are loading data from has an id column. However, you need to send the data back to the controller with the save_id key and NOT the id key. How do you do this? (choose 2)

Create a custom data provider class that extends \Magento\Framework\…\DataProvider.

In your admin controller that loads the uiComponent’s page, add a requestIdVariable value to the registry.

Create a plugin for \Magento\Framework\…UiComponent\Context.php and change the requestId parameter.

In the dataSource node, set the save.

6. You added a new widget for the WYSIWYG editor. After reviewing your work, your client, who is familiar with HTML, states that MyCompany\MyModule\Block\Widgets\PowerfulWidget is verbose in the code. Keeping maintainability in mind, How can you shorten this up?

Override the frontend Javascript files to replace instances of the class names.

Use a virtualType declaration to create a shorter name.

Use a preference that will substitute the name of the class.

Create a plugin that would contain a map for class names.

7. You are needing to create a new cron group for custom functionality that you are building. Where do you store the default configuration options in your module?

etc/di.xml

etc/cron_groups.xml

etc/adminhtml/system.xml

etc/config.xml

8. You have configured a new Catalog Price Rules. Even after double-checking that the Conditions
match products, the updates are not going into effect. No errors are being thrown when the rule
is saved. What is the solution?

You need to click “Apply Rules” on the Catalog Price Rule page.

The cache needs to be flushed.

A 3rd-party module is preventing the rules from saving.

You are creating a module that adds a free item into the cart when another item is present. The
last part of this is to also remove the free item when the originating item is removed. Where do
you plug in to accomplish this?

9. For creating a product dropdown attribute with custom module data as data source, which of the following would you use to fetch the result from custom module model?

Backend Model

Source Model

Frontend Model

Backend Type

10. Which Magento areas natively allow products to be added to the cart? (choose 3)

crontab

base

backend

frontend

webapi_rest

11. What must be done differently to properly generate a URL in the Magento backend?

Ensure that the controller is configured for the correct ACL path.

Generate the URL from an instance of \Magento\Backend\Model\UrlInterface.

Nothing: generating URLs in the frontend and backend are the same.

Instead of calling the getUrl() method, you must call the getBackendUrl() method.

12. What is the similarity between static attribute and non-static attribute?

Can have unique value

Can be assigned to vary backend types (varchar, int, text, …)

To get attribute value in collection, you must use addAttributeToSelect()

Both can have specific value for each store view

13. Keeping maintainability in mind, how do you add a new link to the customer account sidebar?

Create customer_account_index.xml and add the link to the uiComponent configuration
in jsLayout

Create customer_account.xml and add a block to the customer_account_navigation.

Create a plugin for the customer Navigation class.

Create customer_account_index.xml and add a block to the sidebar container.

14. You are creating a new category in a setup script. Which attributes are required?

Is Active

Name

Available Product Listing Sort By

Is Anchor

URL Key

15. How to get list of Layout XML called for a current page.

Create plugin for class \Magento\Framework\App\View, method afterLoadLayoutHandles()

Create observer to “controller_action_layout_render_before”, then $observer->getLayout()

Inject \Magento\Framework\App\ViewInterface and call getLayout()->getUpdate()->getHandles()

Create plugin for class \Magento\Framework\App\View, method beforeGenerateLayoutXml()

16. What additional tools are available in the backend and not in frontend? (choose 3)

Redis cache storage

URL secret keys

uiComponents

ACL

Global records search

17. What category path is the category that is the closest to the top of the tree, but still is visible?

1/2

1/2/8

18. Which Magento features use or require a customer group? (choose 2)

Tiered pricing

Cart Pricing rules

Content widgets

Online customers report

19. You have written the following code in your module’s etc/adminhtml/menu.xml file to add a new menu item to the Content menu:
“

“
Yet, when you click on the menu item, nothing happens. What is the problem?

The action attribute is missing from the add node.

No details were specified in etc/adminhtml/routes.xml.

The module is not a valid module.

The add node should be addLink.

20. What functions are handled by a product’s type instance? (choose 3)

Calculating the product’s final price.

Preparing a product to be added to the cart.

Determining the SKU for the product.

Loading child products.

Triggering the catalog_product_is_salable_before event.

21. You are adding an extension attribute to the CustomerInterface class. You have specified data for the extension attribute, but when you check the database, nothing has been saved. Why is that?

The appropriate columns in customer_entity have not been created.

You need to ensure that the extension attribute getter and setter exists in CustomerExtensionInterface.

You need to add a node to the extension attribute XML details.

Extension attribute data is not automatically persisted to the database.

22. For a certain EAV entity in a magento installation, you need to create an attribute. You also need to store the value of the attribute appending certain string to every value. How would you accomplish this?

Defining a source model for the attribute while creating and adding the login this model to append string.

Setting the string in the dependency injection configuration for \Magento\EAV\Model\Attribute\Source

Defining a backend model for other the attribute while creating and adding the login this model to append string.

Create an entry for EAV attribute in eav_attribute.xml and set the string as an argument

23. You need to render a product’s name and price in a template on the frontend. How do you do this?

Use the ObjectManager in the template to load the product and echo the necessary information

Inject the product into the block using layout XML

Create an observer for the view_block_abstract_to_html_after and call setData on the block with the product

Inject ProductRepositoryInterface into a new view model and provide the appropriate information through methods

24. How do you make a new category attribute available to be edited in the admin panel?

Create a plugin for the `Form` class that renders the category form and add the extra field.

Add the new attribute to the category_form.xml uiComponent.

In the data setup script, add the attribute to the category’s default attribute set.

This is done automatically.

25. How do you configure a store configuration field to obscure input (password entry) and store that value securely? (choose 2)

Add the attribute encrypted=”1”.

Set the type=”obscure”.

Set the field’s backend_model node to be Magento\Config\Model\Config\Backend\Encrypted.

Set the field’s encryption_model node to be Magento\Config\Model\Config\EncryptedInterface.

26. You are building functionality that saves the values of many models in a for loop. To boost performance, you wrapped the for loop in beginTransaction and commit. After doing this, you are getting a “Integrity Violation Constraint” in an observer you created for the _after_save event for this model. Keeping maintainability in mind, what is the solution?

Utilize an after plugin for the model’s save method.

Remove the foreign key.

Remove the observer and add the code directly to the model’s afterSave method.

Switch the observer for _after_save to observe _save_commit_after.

27. As you create a controller in Magento’s adminhtmlarea, you must configure it to respond appropriately to the ACL. Keeping simplicity in mind, what steps do you take to implement this?

Set the value of the ADMIN_RESOURCE constant to be the ACL resource

Check the authorization class’ isAllowed method as the first check in the execute function.

Create a plugin to ensure that the ACL resource is accessible.

Override _isAllowed and check the authorization class’ isAllowed method for the ACL resource.

28. You are adding a fee total model to quotes. What class should your new total model extend?

Magento\Quote\Model\Address\AbstractTotal

Magento\Sales\Model\Total\AbstractTotal

Magento\Quote\Model\Quote\Address\Total\AbstractTotal

Magento\Sales\Model\Quote\Total\AbstractTotal

29. Keeping maintability in mind, how do you customize the format of addresses in emails?

Stores > Configuration > Customers > Customer Configuration > Address Templates

Set the new template in etc/order_addresses.xml

Create a plugin for the \Magento\Sales\Order\Address::getFormatted method.

Use di.xml to add a new address formatter to
\Magento\Sales\Model\Order\Address\FormatterList

30. You are creating an admin uiComponent form. You have written this code for an email field:

text
Email

However, no data is loading into the email field. What is the solution?

Utilize the textEntry type instead of input.

Configure the data source class to load the email data

Change the contents to email.

Add a email element into the tag.

31. You have injected \Magento\Framework\Api\SearchCriteria into the constructor method. You then wrote the following code in a method:
1: $search = $this->searchCriteria->setSortOrders([‘entity_id ASC’]);
2: $this->productRepository>getList($search);

When running this code, you get an error: Fatal error: Uncaught TypeError: Argument 1 must be an instance of SortOrder, string given. What are two errors present in the examples given? (choose 2)

Sort order should not be specified as a string.

Sort orders must be added one at a time with the addSortOrder method.

SearchCriteriaBuilder should be used instead of SearchCriteria.

One line 2, when loading $search, you need to use $search->getCriteria().

32. Describe what the Magento Vault module does.

Magento Vault encryptes customer’s credit card information for later checkout.

Magento Vault is a mechanism that allows you to integrate your stores with payment
service providers.

Magento Vault stores customer’s credit card information in database for later checkout.

Magento Vault stores token that provided by payment gateways for ability use
previously saved credit card.

33. How do you add a new option to the Sort By dropdown on category page?

Set used_for_sort_by=1, used_in_product_listing=1, visible_on_front=1

Set used_for_sort_by=1

Set used_for_sort_by=1 , visible = 1

Set input=select and used_for_sort_by=1

34. A Magento instance has config Persistent Shopping Cart > General Options > Enabled
Persistence is Yes. Customer see at header panel, “Welcome, Veronica Costello! Not you?”.
Which configuration under Persistent Shopping Cart lets customer see text like that?

Enable "Remember Me" = Yes
Clear Persistence on Sign Out = Yes

Enable "Remember Me" = Any value
Clear Persistence on Sign Out = Yes

Enable "Remember Me" = No
Clear Persistence on Sign Out = Yes

Enable "Remember Me" = Yes
Clear Persistence on Sign Out = Any value

35. Customer added product to cart with qty = 1. After login, product in cart has qty = 2. What happened?

Magento bug

Setting in Customer > Persistent Shopping Cart

Default Magento native

Merge quote after login

36. If product price is $50 and tier price is $40 for 3 products and catalog rule applied is $5 flat off for that product. What will be final product price?

$50

$45

$40

$35

37. You see this code in etc/frontend/routes.xml:

<route id=""mymodule"" frontName=""user-subscriptions"">
<module name=""MyCompany_MyModule"" />
</route>
You have placed a controller in Controller/Index/Subscribe.php. At what URL would you visit the
controller listed above?

/mymodule/index/subscribe

/mymodule/subscribe

/user-subscriptions/index/subscribe

/user-subscriptions/subscribe

38. You are assisting a merchant setting up a Cart Price Rule. They wish to apply free shipping to specific items in the cart (and not the entire cart). How do you implement the filter for the specific products?

Add a Product filter to the Apply To rules for the specific requirements.

Create Conditions rules for the specific requirements.

Use the Actions rules for the specific requirements.

This is not possible without a 3rd-party customization.

39. You are creating a module that adds a free item into the cart when another item is present. The
last part of this is to also remove the free item when the originating item is removed. Where do
you plug in to accomplish this?

Magento\Quote\Model\Quote::removeItem

Magento\Quote\Model\Quote\Item::setQty

Magento\Checkout\Model\Cart::save

Magento\Checkout\Model\Cart::removeItem

40. You need to create new image role “Hover” for products. To accomplete this, you create new product attribute ‘hover_image’. Which attribute defined below is correct.

$eavSetup->addAttribute(‘catalog_product’, ‘hover_image’,

‘type’ => ‘varchar’,
‘label’ => ‘Hover Image’,
‘input’ => ‘file’,
‘frontend’ => ‘Magento\Catalog\Model\Product\Attribute\Frontend\Image’,
‘required’ => false,
‘sort_order’ => 10,
‘global’ => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_STORE,
‘used_in_product_listing’ => true
]);

$eavSetup->addAttribute(‘catalog_product’, ‘hover_image’,

‘type’ => ‘text’,
‘label’ => ‘Hover Image’,
‘input’ => ‘gallery’,
‘frontend’ => ‘Magento\Catalog\Model\Product\Attribute\Frontend\Image’,
‘required’ => false,
‘sort_order’ => 10,
‘global’ => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_STORE,
‘used_in_product_listing’ => true
]);

$eavSetup->addAttribute(‘catalog_product’, ‘hover_image’,

‘type’ => ‘varchar’,
‘label’ => ‘Hover Image’,
‘input’ => ‘media_image’,
‘frontend’ => ‘Magento\Catalog\Model\Product\Attribute\Frontend\Image’,
‘required’ => false,
‘sort_order’ => 10,
‘global’ => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_STORE,
‘used_in_product_listing’ => true
]);

$eavSetup->addAttribute(‘catalog_product’, ‘hover_image’,

‘type’ => ‘varchar’,
‘label’ => ‘Hover Image’,
‘input’ => ‘product_image’,
‘frontend’ => ‘Magento\Catalog\Model\Product\Attribute\Frontend\Image’,
‘required’ => false,
‘sort_order’ => 10,
‘global’ => \Magento\Eav\Model\Entity\Attribute\ScopedAttributeInterface::SCOPE_STORE,
‘used_in_product_listing’ => true
]);

41. ou need to update the external ERP system after placing order from Magento frontend without affecting the order processing in Magento. How would you proceed keeping maintainability and ease of integration in mind?

Create an Plugin for the function where order place functionality is

Extend the order model and add the customization functionality to new model

Create a cron job to fetch orders and save data in ERP

Create an observer for the event sales_order_place_after

42. What interface allows you to access values saved in Store > Configuration?

\Magento\Store\Api\Data\StoreConfigInterface

\Magento\Framework\App\Config\ScopeConfigInterface

\Magento\Framework\App\Store\ConfigInterface

\Magento\Backend\Api\Data\StoreScopeConfigInterface

43. You are investigating a Continuous Integration build script and see this command:
bin/magento setup:static-content:deploy –jobs=2
What is the effect of the –jobs flag?

Parallel PHP processes are started to process assets faster.

Causes the built content to be multiple-node ready.

Prevents Magento from including too many theme dependencies.

Content deployment is metered to reduce memory utilization.

44. What are required steps to create a customer static attribute. (choose 2)

Create new column in customer_grid_flat table

Create new column in eav_entity table

Set backend_model for attribute to handle attribute save

Create new attribute with ‘type’ is static

Run indexer:reindex

45. What is the significance of the “resource” attribute while defining the menus in the admin area?

It’s just a identifier for the declared menu

To add ACL rule for menu

To define the needed resources to display the menu

To add the custom link for menu

46. What is the purpose of the getFlatColumns method in an EAV’s Source model?

It converts option values into row values for the attribute value tables.

It flattens an array attribute value into a JSON string.

It returns columns that will be added to the EAV model’s flat table.

It returns a list of columns in the entity’s _text table.

47. A magento instance has 3 websites. Website 3 has 3 store views. The merchant has requested that a product in Website 3 in Spanish store view has a special price. What do you tell the client?

In product edit page, switch Store View to Website 3 > Spanish, edit Special Price value.

Product’s special price has scope is Global/Website so we can’t set special price for product in specific store view.

They can use Catalog Price Rule to set product’s special price.

Go to product edit page, in Advanced Pricing modal, set Special Price

48. Merchant want to add additional column to My Account – Order History. Keeping
maintainability in mind and don't change/override template
Magento_Sales::order/history.phtml, how do you accomplish this? (choose 2)

In sales_order_history.xml, reference block sales.order.history.extra.container, add
new block to render additional column data.

In sales_order_view.xml, reference block sales.order.history.extra.container.data, add
new block to render additional column data.

In sales_order_history.xml, reference container sales.order.history.info, add new block
to render additional column.

In sales_order_history.xml, reference block sales.order.history.extra.container.data,
add new block to render additional column data.

In sales_order_history.xml, reference container
sales.order.history.extra.column.header to add column header

49. You have created a custom customer attribute that displays the last time that the customer
made a purchase, stored in UTC. This attribute needs to be visible in the Customer grid. The
column is visible, but, when it is loaded, only the date is visible—not the time. You have verified
that both the date and time are stored in the database. Keeping user experience in mind, what
is the solution?

Set the grid_column_type to be datetime in the customer_eav_attribute table.

Override the customer uiComponent data provider and format the data as a string.

Change the backend_type from date to datetime.

Add a new column to the customer_listing uiComponent and specify the date column
type.

50. The customer’s firstname attribute contains a validation field min length 1 char by default. How
to change it to 2 characters?

Update field
'validate_rules' => '{"max_text_length":255,"min_text_length":2}'

Update field
'frontend_class' => 'validate-length minimum-length-2'

Update field
'validatation_rules' => '{"max_text_length":255,"min_text_length":2}'

Update field
'validate_rules' => '{"max_length":255,"min_length":2}'

51. For fraud prevention purposes, you need to notate the IP address from which a user adds an item to their cart. Which event will allow you access to every cart addition?

sales_quote_product_add_after

checkout_cart_add_product_complete

sales_quote_add_item

cart_add_item_after

52. You need to create a custom price calculator for simple products. You have already created the new price model. Keeping simplicity in mind, what additional steps do you take to implement this? (choose 2)

Make your new price model extend \Magento\Catalog\Model\Product\Type\Price.

Update the frontend templates to use the new price methods.

Create a plugin for the getPriceModel() method and return your price model.

In your product_types.xml module, reference the simple product type, and set a value for the priceModel attribute.

53. How to create product attribute only work with bundle product?

Set ‘apply_to’ => ‘bundle’,

frontend class to Magento\Bundle\Model\Entity\Attribute\Frontend\BundleItem

Set ‘group’ => ‘Bundle Items’

Set attribute scope to be global

54. You are evaluating a 3rd-party module and you see some custom functionality that is executed in an observer of the checkout_cart_add_product_complete. This functionality is expected to run every time a product is added to the cart. Is there a problem?

Yes. This event is used only triggered in the admin Sales > Order > Create process.

No. checkout_cart_add_product_complete is triggered as expected.

Yes. This only is only triggered when the cart is added to the cart on the frontend and in no other case.

Yes. This event doesn’t exist.

55. How can customer attribute be edited in admin?

Have to run indexer:reindex before edit

Nothing required

Add field in ui_component/customer_form.xml

Setup used_in_form

56. Which of the following are not adminhtml area routers? (choose 3)

\Magento\Robots\Controller\Router

\Magento\Admin\App\Router

\Magento\Framework\App\Router\DefaultRouter

\Magento\Backend\App\Router

\Magento\Framework\App\Router\Base

57. How would you add dependent configuration field in the magento 2?

You cannot add dependent field in the configuration area of magento 2

Define the dependent field in the config.xml

Add depends node to the field for which you need to add dependency in system.xml

Add the virtual type for \Magento\Framework\Config\AbstractSource in di.xml with argument depend and value as field name

58. Merchant has requested a new default order status “Pending Review”after placing the order
with COD. Steps to implement it are (choose 3)

In admin order detail page, under Notes for this Order section, change Status from
Pending to Pending Review, then click Submit Comment to change order status to
Pending Review

In Order Status list, click Create New State button to create new state

Go to Stores > Configuration > Sales > Payment Methods > Cash On Delivery > New
Order Status = Pending Review

In Order Status list, click Create New Status button to create new status

Assign new order status to Pending state, and Use Order Status As Default

59. A root category is associated with which scope:

Global

Website

Store View

Store

60. A merchant has asked you to setup a 20% sale on all products in the Men’s Tops category, such that the discount is visible on the product page. What Magento feature is best utilized for this?

Special Price for each product

Cart Price Rules

Catalog Price Rules

Tiered Pricing

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