Adobe AD0-E704 Exam Practice Test Instant Access

Question 1

You are working on a project with a large database with many products, sales rules and CMS pages. The merchant is going to use Magento_Staging for scheduled updates, but they were told that use of Staging will modify all SQL queries and slow down website performance.

What modification does Magento_Staging make to existing SQL queries?

AIt creates a copy of the staged table with the staged data and joins the new table to replace original values with the staged ones

BEvery query which uses staged entities will have an additional join to the staging_update table filtered by the current version

CMagento.staging does not modify any existing queries so it has no additional impact

DFor every query that uses staged entities it adds an additional were statement to filter a row by the current version

Answer : D

Question 2

On a merchant website you inherit an extension that allows customers to rate products. The extension adds two integer attributes to store the rating values, avg_rating and rating_count. The merchant reports an issue that the displayed average is lower than it should be. You determine you need to change the avg_rating attribute backend typetodecim to fix the issue.

In your module's Data Patch script, which three steps do you take to change the attribute backend type?

AOption A

BOption B

COption C

DOption D

EOption E

Answer : B, C, E

Question 3

You are working on a module MyCompany_MyModule which adds a select attribute with a few options using the \Magento\Eav\Setup\EavSetup: :addAttribute() method in data in data install script.

There is no uninstall script. While debugging, you have uninstalled the module with the command:

bin magento module:uninstall MyCompany_MyModule

Then you reinstalled the module. What will be the effect on the attribute?

AThe attribute remains the same but the attribute options will be duplicated

BThe attribute is deleted and created again

CThe attribute is updated when attribute options differ

DA duplicate attribute will be created with a different attribute code

Answer : A

Question 4

The merchant asked you to implement an order review step on the checkout after the payment step. Which problem do you need to resolve?

AThere is no WebAPI endpoint for saving payment data without placing an order

BThe 'Place order' button belongs to a payment method template so you have to customize all payment methods

CThere is no WebAPI class for placing an order without saving a payment data

DMagento does not allow to add a step after the payment step

Answer : D

Question 5

You are creating a module lo enable customers to attach an image file to the quote items while adding a product to the cart. To save development time, you want to build on top of functionality provided by the class \Magento\Catalog\Model\ImageUploader as much as possible.

The class constructor signature is:

What do you do to process the uploaded file?

AConfigure a plugin for the method \Magento\Catalog\Model\ImageUploader: moveFileFromTmp() in di. xml

BCreate a custom implementation because the catalog imageUploader can not be used to for files associated with quote items

CCreate a custom Class implementing \Magento\Catalog\Model\ImageUploaderInterface and add it to the $uploaders argument of the UploaderPoolinterface via di.xml

DConfigure a Virtual type based on \Magento\Catalog\Model\ImageUploader Specifying $baseTmpPath. $basePath and SallowedExtensions

Answer : D

Question 6

A merchant is planning to create a single scheduled update for one million products. They are wondering about website performance. What two performance issues will the update cause?

AMagento will index all records in the cataiog_product_entity table regardless of the version so the index tables will be big

BWhen applying a scheduled update Magento will reindex all affected products

CThe catalog_product_entity_* tables will contain all the staged values which slows down all queries related to them

DMagento runs a cron job every minute to generate and maintain preview data

Answer : A, B

Question 7

After the installation of several 3rd-party extensions to the merchant's store, it was noticed the admin panel authentication consistently fails with the credentials used before. Where do you start debugging to understand why the authentication is failing?

A\Magento\Backend\App\Action\Composite\Authentication::dispatch

B\Magento\Backend\App\Act ion\Observer\Authentication::execute

C\Magento\Backend\App\Act ion\Plugin\Authentication::aroundDispatch

D\Magento\Backend\App\Act ion\AuthenticationWrapper::dispatch

Answer : D

Adobe AD0-E704 Adobe Certified Master Magento Commerce Architect Exam Practice Test