Top 30 Magento Extension Interview Questions & Answers

Magento Interview Questions

There is given Magento interview questions and answers that has been asked in many companies. Let’s see the list of top Magento interview questions.

1) Define Magento.

Magento is an e-commerce platform written in PHP and released under the open source license. It was released by Varien, Inc. on March, 31 2008. It provides flexibility and control to the On-line merchants over the look and content.

2) What was the initial release date of Magento?

Magento was initially released on 31st March, 2008.


3) Describe various versions of Magento.

Following are the different versions of Magento:https://imasdk.googleapis.com/js/core/bridge3.501.0_en.html#goog_1199735174

  • Magento Enterprise Edition
  • Magento Community Edition
  • Magento Professional Edition
  • Magento .go Edition

4) Explain the architecture of Magento.

Magento is a typical MVC application where controller remains at one place while the models at the other.


5) What is the technology used by Magento?

In Magento, PHP is used as a scripting language while MySQL is used as the database.


6) Explain some features of Magento?

Magento has following basic features.

  • SEO Friendly
  • Google sitemap support
  • Accounts of Customers
  • Managing orders
  • Report and analysis
  • Site management
  • Payment
  • Marketing promotion and tools
  • International support
  • Extremely modular architecture

7) What are the limitations of Magento?

There are the following limitations of Magento.

  • Due to the fact that it is written in PHP, it is slower in performance as compare to other platforms.
  • It consumes more space in the memory. It can consume gigabytes of RAM during heavy processes.
  • In the absence of Object oriented programming, it can become complex.

Magento Extension MCQ :-

Q.1 What is the CLI command to list all the commands?

   A. magento cli_all

   B. magento list

   C. magento cli_list

   D. magento list_all

Correct Answer : magento list

Q.2 _ is a software design pattern that allows a class to specify its dependencies without having to construct them.

   A. Events and observers

   B. Plugins

   C. Dependency injection

Correct Answer : Dependency injection

Q.3 In which file you can define your dependency for a class in Magento?

   A. system.xml

   B. webapi.xml

   C. acl.xml

   D. di.xml

Correct Answer : di.xml

Q.4 cache:flush command removes all the cache, including the third-party libraries cache data.

   A. True

   B. False

Correct Answer : True

Q.5 When the dependency inversion principle is applied, it means high-level classes are not working directly with low-level classes.

   A. True



   B. False

Correct Answer : True

Q.6 cache:clean command removes all the cache, including the third-party libraries cache data.

   A. True

   B. False

Correct Answer : False

Q.7 Which of the following is incorrect regarding the dependency inversion principle?

   A. Your high-level classes should use the interfaces of low-level classes instead of working with them directly.

   B. None of the options

   C. Using interfaces in your code reduces the risk of incompatibility bugs when Magento changes the underlying implementation of those interfaces.

   D. Reduces code dependency using abstractions in your code.

Correct Answer : Your high-level classes should use the interfaces of low-level classes instead of working with them directly.

Q.8 __ CLI command is used to uninstall a module.

   A. php bin/magento unistall -m module

   B. php bin/magento module-unistall

   C. php bin/magento module:unistall

Correct Answer : php bin/magento module:unistall

Q.9 __ method return value will substitute the original method return value.

   A. around

   B. after

   C. before

   D. None of the options

Correct Answer : before

Q.10 Proxy initiates dependency in __ approach.

   A. Publish-subscribe

   B. lazy load

   C. Data render

Correct Answer : lazy load

Q.11 Newable objects cannot be injected.

   A. True

   B. False

Correct Answer : True

Q.12 __ blocks generate the actual content for the display, where you need to assign to one of the structural blocks for frontend display.

   A. Structural blocks

   B. Content blocks

Correct Answer : Content blocks

Q.13 Observers names can be similar in an event definition.

   A. True

   B. False

Correct Answer : False

Q.14 Events are dispatched using MagentoFrameworkEventMaganer class.

   A. True

   B. False

Correct Answer : True

Q.15 What are the parameters of the around method?

   A. subject and proceed

   B. subject, value and proceed

   C. subject and result



   D. subject, proceed and original method parameters

Correct Answer : subject, proceed and original method parameters

Q.16 What is the first step in creating a custom system.xml?

   A. Creating ACL

   B. Adding default config value

   C. Creating custom system configuration

   D. None of the options

Correct Answer : Creating custom system configuration

Q.17 You have to call _ function to dispatch an event from the event manager class.

   A. event

   B. system

   C. observer

   D. dispatch

Correct Answer : dispatch

Q.18 Interceptor is used for running plugins.

   A. True

   B. False

Correct Answer : True

Q.19 Name the two parameters used by the after method.

   A. subject and result

   B. result and proceed



   C. subject and value

   D. None of the options

Correct Answer : subject and result

Q.20 _ method is used to replace the original method entirely.

   A. after

   B. before

   C. around

   D. None of the options

Correct Answer : before

Q.21 Events are dispatched by _ when certain actions are trigerred.

   A. Templates

   B. Plugins

   C. Modules

   D. Themes

Correct Answer : Modules

Q.22 Name the two parameters used by the before method.

   A. result and value

   B. subject and value

   C. subject and proceed

   D. subject and result

Correct Answer : result and value

Q.23 What are the types of dependencies?

   A. Newable

   B. Injectable

   C. Both injectable and newable

Correct Answer : Both injectable and newable

Q.24 What all are things that you can configure using di.xml file?

   A. Connect plugin to class

   B. Create virtual type

   C. Link an injectable interface with correct implementation

   D. All the options

Correct Answer : All the options

Q.25 ObjectManager class is located at which directory?

   A. vendor/magento/backend/ObjectManager



   B. vendor/magento/framework/ObjectManager

   C. vendor/magento/backend/

   D. vendor/magento/frontend/

Correct Answer : vendor/magento/backend/ObjectManager

Python interview question and answer

Q.26 _ is the DI manager that finds the correct implementations which are required for the original object.

   A. dependency injection

   B. di.xml

   C. ObjectManager

   D. system.xml

Correct Answer : ObjectManager

Q.27 Where does the global di.xml reside in magento directory?

   A. frontend/etc/di.xml

   B. module/etc/di.xml

   C. app/etc/di.xml

Correct Answer : module/etc/di.xml

Q.28 Interceptor class gets generated programmatically when the object manager tries to call the instance of the class.

   A. True

   B. False

Correct Answer : True

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