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Magento Magento 2 Certified Associate Developer Exam Practice Questions (P. 3)

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Question #11
You have to install a new module on the production environment. All the module is adding a new product attribute. You enabled maintenance mode, copied the module code, run bin/magento setup:upgrade and disabled maintenance mode.
What two risks does this process pose? (Choose two.)
  1. A
    It will clean all caches which will cause a performance degradation
  2. B
    The new attribute will be invisible on the storefront until the cache is cleaned manually
  3. C
    It will void all active sessions
  4. D
    It will clean static assets from the pub/static folder

Correct Answer:
BC

Question #12
Magento 2's architecture uses code to bootstrap a custom module that resides in app/code.
What two files are required to make a module usable? (Choose two.)
  1. A
    Helper/Data.php
  2. B
    etc/config.xml
  3. C
    etc/module.xml
  4. D
    registration.php

Correct Answer:
CD
Reference:
https://inchoo.net/magento-2/how-to-create-a-basic-module-in-magento-2/

Question #13
How does Magento store customer address attribute values?
  1. A
    Customer address is a flat entity, so all values are stored in the customer_address_entity table
  2. B
    Customer address is not an entity, so its properties are customer attributes
  3. C
    Customer address is an attribute of the customer, so it doesn't have its own attributes
  4. D
    Customer address is an EAV entity, so all values are stored in the customer_address_entity table and related values tables

Correct Answer:
D

Question #14
You are developing a module and need to add another column to a table introduced by another module MyCompany_MyModule via db schema.
How do you do that?
  1. A
    Create a etc/db_schema.xml file in your module, add the column and run bin/magento setup:upgrade
  2. B
    Create a etc/db.xml file in your module, add the column and run bin/magento setup:db-schema:upgrade
  3. C
    Run a command: bin/magento setup:db-schema:upgrade <table> <column definition>
  4. D
    Create a etc/db_schema_whitelist.json file in your module, add the column and run bin/magento setup:upgrade

Correct Answer:
C

Question #15
You need to add a new text attribute to all products in the Magento store. When this attribute is displayed on the product page, its values must be different depending on the selected language.
Keeping simplicity in mind, how do you add this attribute?
  1. A
    Use the Magento CLI to create a new custom attribute, then generate dictionaries for all supported languages
  2. B
    Use a Data Patch to create a new EAV attribute
  3. C
    Add a new column to the catalog_product_entity table using declarative schema
  4. D
    Use the admin panel to create a new extension attribute

Correct Answer:
D

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