Magento Interview Questions and Answers
Magento is an open-source PHP e-commerce platform. Magento is probably the most powerful and stable platform for e-commerce website development. It has a modular architecture and employs a MySQL database management system and elements of the Zend Framework. It follows the object-oriented programming and MVC architecture. It is a stable, secure, and customizable e-commerce platform framework, which provides developers complete control of the look and functionality of their eCommerce website. Whether you are looking for Magento interview questions for experienced professionals then you are in the right place.
Advantages
- Flexible and scalable.
- Builds customized websites.
- It provides core components with advanced features.
- In-built SEO handles duplicate content, traffic, indexing, and landing pages.
- Inbuilt tools help promote e-commerce store.
Here are some of the “Magento Interview Questions” for freshers as well as experienced candidates:
Most Frequently Asked Magento Interview Questions
Magento is an accessible open source technology built e-commerce platform which offers online merchants with a user-friendly, flexible shopping cart system, as well as excellent control over the content, design, and functionality of their online store. It also offers superior marketing, catalog management, and search engine optimization tools.
Magento has two versions:
- Magento Community (CE): The non-paid version of Magento with a significant number of functionalities but nonetheless limited to its Enterprise version.
- Magento Enterprise (EE): The paid version with additional features for developers such as easy control over a large number of products, full page cache, gift wrap, loyalty program, RMA and more.
Developers can follow these below-mentioned steps to improve the performance of your Magento website.
- Use the latest version of Magento.
- Enable caching to reduce the required number of database operations for each page request.
- Enable the Flat Catalog module for categories and products in the Magento Admin Panel.
- Compress image files
- Install a PHP opcode cache
- Use LiteSpeed Enterprise web server instead of Apache web server.
Magento has a total number of 12 design patterns as following:
- Model View Controller Pattern
- Front Controller Pattern
- Factory Pattern
- Registry Pattern
- Singleton Pattern
- Object Pool Pattern
- Prototype Pattern
- Lazy Loading Pattern
- Iterator Pattern
- Module Pattern
- Service Locator Pattern
Advantages
- Continuous adaptation of code & bug fixes creates new surprises for developers and business owners.
- The large talented and helpful community of users
- Continuously evolving and stuffed with features
- Offers countless themes and templates
Limitations
- Slow due to heavily layered and complex coding style
- Requires high speed dedicated server from particular hosting providers
- Technical documentation is minimal
Entity Attribute Value or EAV data module is used to get flexibility for data. Use of it brings more complexity compared to the relation table model.
A total number of 6 tables will be created in an EAV module.
- module Table
- module_datetime
- module_decimal
- module_int
- module_text
- module_varchar
Follow these Magento interview questions for guaranteed career success in the future.
| S.no | Mage::getSingleton() | Mage::getModel() |
|---|---|---|
| 1. | It will first check the same class instance is exists or not in memory. If the instance is created then Mage::getSingleton() will return the same object from memory. | The Mage::getModel() will create a new instance of an object every time even such purposes exists in configuration. |
Magento has three sessions available with it:
- Core/Session: offers the primary "anonymous" data about the visitor.
- Customer/Session: It handles things related to the specific customer.
- Checkout/Session: It stores information related to the quote, guest or not.
To enable maintenance mode in Magento, follow these steps:
- First, enable Magento command-line interface (CLI)
- Use SSH to log in to your account
- Add the syntax
cd ~/public_html
- Then put the syntax bin/magentomaintenance:allow-ipsxxx.xxx.xxx.xxx
- Replace xxx.xxx.xxx.xxx with IP address
- Now put to enable maintenance mode
bin/magentomaintenance:enable
We can write custom queries in Magento. Please follow the below given examples.
$resource = Mage::getSingleton(\'core/resource\');
$readConnection = $resource->getConnection(\'core_read\');
$var_query = \'SELECT * FROM products_table\';
$var_results = $readConnection->fetchAll($var_query);
var_dump($var_results);
Development History
The official development started development in 2007. In August 2007, the first beta version was made public. We have also posted Magento 2 interview questions that you can expect in your next job interview.
Latest Version: The latest version is Magento 2.3.0, which was released in Nov 2018.