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List Questions & Answers in Magento

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Written by  Hoant
Monday, 27 September 2021 10:47
List Questions & Answers in Magento

Whether you are a fresher or senior, an interview is always a fear for anyone, especially for Magento-related interview jobs. No matter how well prepared you are, it will always be the factor that puts you under pressure. In this case, it’s better to have some idea of ​​what types of questions the employer will ask during the interview. From there, you can have precise answers ready and score points with the employer during the interview process.

We have compiled the 25 most popular Magento interview questions and answers that have been asked by most of the companies about Magento. Make sure you have carefully prepared this knowledge for the interview to get the best results.

Table of Contents

25 Magento Interview Questions and Answers

Question 1. What is Magento?

Magento is an open-source e-commerce platform that helps companies run and manage their e-commerce websites most optimally. It was first released by Varien Inc in 2008, before being sold to eBay and eventually being spun off into another version. That is Magento 2. Magento 2 version was launched in November 2015 and in this version, it has been perfected and added powerful functions for websites.

Question 2: How is Magento valuable for businesses?

Any platform brings different values to businesses. Magento too. It offers high controllability and great flexibility allowing merchants to manage their e-commerce store with ease. Thanks to its user-friendly interface and powerful functions, it will make it easier for you to operate an e-commerce site than other platforms.

Some features also help improve your website’s ranking on google rankings. Not only does it give customers a great experience when surfing on your friendly website, but it also helps you to improve your revenue significantly.

Question 3. How many versions are there in Magento?

Magento is a platform that offers a wide variety of products. They split based on multiple offerings:

  • Magento Commerce
  • Magento Order Management
  • Magento Business Intelligence
  • Magento Shipping Magento Social
  • Magento Open Source

The latest version of Magento is 2.4. It includes new features and improvements like improvements to the B2B Module, ElasticSearch, Product Recommendations that are powered by Adobe Sensei, Adobe Stock Integration, and more. Up to now, this is also the most anticipated version of businesses, as it brings a lot of great features to e-commerce stores.

Question 4: What is MVC Architecture?

MVC stands for Model-View-Controller, it is a famous architecture on the market today. It is divided into 3 parts: Model, View, and Controller. The model will handle the data and logic behind running an application. The view is a lot of what you see on the interface of the application, and it also allows you to display anything you want. The Controller will pass or issue commands to the view and model depending on the user’s requirements.

Currently, MVC has 2 types, convention-based and configuration-based. Up to now, Magento uses a configuration-based version. This also means that you need a module configuration file to work with the website.

Question 5: What technology does Magento 2 use?

Magento uses the MySQL or MariaDB database, the PHP programming language, and elements of the Zend Framework. Magento 2 uses PHP 7.0.2 to 7.4. 

Question 6: Which statement is used to enable/disable a Magento 2 module?

You can use the following commands to enable or disable a Magento 2 extension.

php bin/magento module:enable module_name

php bin/magento module:disable module_name

Question 7. Which limitations are there on the Magento software?

Magento is one of the leading e-commerce software in the market. There is no denying that the platform is very useful with e-commerce websites. However, its limitation is that it requires too much space and memory. Besides, it also requires object-oriented programming to prevent turning into a complex system. More than that, sometimes, Magento can make your website slow and affect performance. After all, these limitations are not a big concern because, in most cases, using a website on the Magento platform often outweighs any potential problems and offers incredible value.

Question 8: What is EAV?

Entry, Attribute, Value model (EAV) is also known as object - attribute - value or Open Schema. It is a database or catalog management system that is used in Magento.

EAV is designed for databases where a large number of attributes identify a given entity; however, not all of these attributes are applicable to that entity.

Only non-empty data values are stored when you use this model. Although this model facilitates efficient storage, it is more complex than the flat model, as developers have to run many queries to get complete information about a product or entity.

Question 9. What type of tables will be created after making a new EAV module?

There are six tables that will be created if you make a new EAV module. These include:

  • Module_datetime
  • Module
  • Module_decimal
  • Module_int
  • Module_text
  • Module_varchar

Question 10. How can you create a custom module in Magento 2?

Suppose the model name is ‘hosting’. You have to determine it in app/code folder.

It should be: app/code/VendorName/moduleName.

For example: app/code/Mageplaza/Hosting

You need to do the following steps to create a custom module in Magento 2.

  1. Create the folder of ‘hosting’ module
  2. Create etc/module.xml file
  3. Create etc/registration.php file
  4. Enable the module

Question 11: How to improve the performance of Magento 2?

As we mentioned above, Magento has a limitation of slow website performance. However, there are a few things we can do to enhance Magento’s performance. Here are some suggestions for you.

  • Disable all modules that you don’t use on the website
  • Disable the Magento log
  • MySQL Query Caching
  • Optimize the image on the website
  • Enable Gzip Compression
  • Enable Magento Caching
  • Combine the external CSS/JS into a single file
  • Use a Content Delivery Network (CDN)

Doing all of the above will speed up your Magento website, and as a result, your site becomes more responsive and performant. Not only does it make your business convenient, but it also helps your customers have a great experience when visiting your online store.

Question 12: Which statement is used to enable or disable a Magento 2 cache?

By doing the following commands, you can enable/ disable a Magento 2 cache.

php bin/magento cache:enable

php bin/magento cache:disable

Question 13: How can you change the core Magento API settings?

  1. First and foremost, you need to access the Admin menu.
  2. Select System > Configuration
  3. Choose Magento Core API on the left side of the Configuration Panel
  4. Navigate to expand the General Settings section
  5. Write the Default Response Charset’s name that you want to use
  6. Define the DefineClient Session Timeout in seconds
  7. Click on the Save Configuration button to finish

Question 14: What is the difference between a cache:clean and cache:flush?

Cache:clean remove all the cache that has been enabled for Magento. On the other hand, Cache:flush removes all the cache storage, whether it is from a third party or Magento cache.

Question 15: How can you reset the Magento file & directory permissions?

You are able to reset the Magento file & directory permissions by following statements through the directory where Magento is installed.


find . –type f –exec chmod 644 {} ;
find . –type d –exec chmod 755 {} ;
chmod +x mage

Question 16: What type of file will store the Vendor Path?

The answer is vendor_path.php situated at app/etc/ folder.

Question 17: What are the different deploy modes in Magento 2?

There are 4 different deploy modes in Magento 2.

  • Default mode: thanks to this mode, you can deploy Magento applications on a single server. However, this mode is not optimized for production.
  • Developer mode: this mode is used when you extend the website’s functionality or customize it.
  • Production: this mode is enabled only when your Magento 2 site is in production.
  • Maintenance: When you enable this mode, it will prevent access to the Magento website while your website is being updated or reconfigured.

Question 18: Which command to set up an upgrade in Magento 2?

You can do the following command to set up an upgrade in Magento 2:

php bin/magento setup:upgrade

Question 19: What is a Factory Class in Magento 2?

Factory classes are used to generate, change or get an entity without accessing the object manager, as Magento discourages doing this. These classes are generated during code generation and do not need to be defined manually.

Question 20: What is dependency injection in Magento 2?

The purpose of using Dependency injection in Magento 2 is to replace the functionality the Mage class Magento 1 used.

This is a pattern where object 1 can declare its dependencies on object 2, and as a result, object 1 need not worry about buying its own dependencies. Object 2 will do it based on the desired behavior and configuration.

Question 21. Which billing information will be managed through Magento?

All of the following information will be managed from the client account through Magento.

  • Add a credit card
  • Add a PayPal account
  • Update a billing address
  • Produce a print-ready receipt
  • View your billing history

In fact, Magento is a flexible eCommerce platform, and it’s so crucial to manage all of this billing information through the platform.

Question 22. How to Add a Blog to Magento?

We all know that blogs play a vital role in improving website rankings on search engines. Therefore, it had better add blogs to your website to improve them, attract customers and reap other great benefits from it.

You have 2 options to add a blog to Magento: using the pre-built Magento blog extension or setting up a custom blog module on the online store. If you intend to set up a free premade blog module, Mageplaza Blog for Magento 2 is a great choice. This is one of the perfect free modules built by Mageplaza developers. To install the Blog extension, you can see the detailed instructions here as well as the instructions for using this module. Conversely, if you want to build a custom blog, you need to create a module, and this won’t be easy. We recommend you choose the Mageplaza Blog module, which is available and free in the Magento market.

Question 23. Which design patterns does Magento include?

There are a total of 12 design patterns in Magento, including:

  • Factory Pattern
  • Singleton Pattern
  • Model View Controller Pattern
  • Front Controller Pattern
  • Registry Pattern
  • Prototype Pattern
  • Iterator Pattern
  • Object Pool Pattern
  • Service Locator Pattern
  • Lazy Loading Pattern
  • Observer Pattern
  • Module Pattern

Question 24: How can you make Magento more secure for clients?

Security is always a core factor for any e-commerce website. And so is security in Magento; this is very urgent and always a top priority.

  • To improve the security of Magento, you can follow some suggestions below:
  • You need to create a complex password and change them from time to time
  • Do not allow remote access to Magento content manager
  • Do not provide downloadable media on production sites.
  • Install security extension for Magento website. Mageplaza Security extension is a suitable choice if you need to secure your website from hackers. This module not only prevents potential hackers from stealing critical information in your store but also provides an intelligent alert system for you to deal with them promptly.

Question 25: How to enable Maintenance mode in Magento?

To enable Maintenance mode in Magento, you need to create a file named maintenance.flag, then only upload it to the Magento home directory containing the following commands.


$maintenanceFile = 'maintenance.flag';     
if (file_exists($maintenanceFile)) {  
include_once dirname(__FILE__) . '/errors/503.php';  
exit;  
}

Final thoughts

Above are 25 Magento Questions and Answers that you need. We hope they will be an excellent start for you. Be well prepared, and don’t forget to always be confident when answering questions from employers.

If you find us missing anything cool, feel free to mention them below in the comment section.

Thanks a lot for reading!

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