Drupal Interview Questions and Answers in 2025 (100+ Q&A)

Drupal

Ques:- What makes “search” in Drupal a better feature compared to other CMS platforms?

Asked In :-

Right Answer:

Drupal's search feature is enhanced by its ability to integrate with powerful modules like Search API and Facets, allowing for customizable search experiences, advanced filtering, and better indexing options. Additionally, it supports multilingual content and can be easily extended to include custom search functionalities, making it more flexible and robust compared to other CMS platforms.

Drupal

Ques:- How to debug in drupal ?

Asked In :-

Right Answer:
To debug in Drupal, you can use the following methods:

1. **Enable Error Reporting**: Set the error reporting level in `settings.php` by adding `$config['system.logging']['error_level'] = 'verbose';`.

2. **Use Devel Module**: Install the Devel module for additional debugging tools like `dpm()` and `ddebug_backtrace()`.

3. **Watchdog Logs**: Check the logs at `/admin/reports/dblog` for error messages and warnings.

4. **Xdebug**: Use Xdebug for step debugging and profiling.

5. **Drupal Console**: Use Drupal Console commands for debugging tasks.

6. **Theme Debugging**: Enable Twig debugging in `services.yml` to see template suggestions.

7. **PHP Error Logs**: Check your server's PHP error logs for additional information.

Drupal

Ques:- How to override the contributed module?

Asked In :- Amzur Technologies,

Right Answer:
To override a contributed module in Drupal, you can implement a hook in your custom module or theme. Use `hook_module_implements_alter()` to change the behavior of the contributed module, or create a new function with the same name as the function you want to override. Additionally, you can use the `hook_theme_suggestions_HOOK()` to alter templates or use a custom module to provide alternative implementations.

Drupal

Ques:- Explain taxonomy in drupal.

Asked In :-

Right Answer:
Taxonomy in Drupal is a system for classifying content using tags or categories. It allows users to create, manage, and organize content types through vocabularies, which are collections of terms. Each term can be used to categorize content, making it easier to find and filter information on a website.

Drupal

Ques:- What is module in drupal?

Asked In :-

Right Answer:
A module in Drupal is a package of code that extends the functionality of a Drupal site, allowing developers to add features, customize behavior, and integrate with other systems.

Drupal

Ques:- What is drupal distributions and when to use it.

Asked In :-

Right Answer:
Drupal distributions are pre-packaged versions of Drupal that include a specific set of modules, themes, and configurations tailored for a particular use case or audience. They are used when you want to quickly set up a Drupal site with predefined features and functionality, saving time on configuration and development.

Drupal

Ques:- Why is ctools used in drupal?

Asked In :-

Right Answer:
Ctools (Chaos Tool Suite) is used in Drupal to provide a set of tools and APIs that simplify the development of complex modules, manage plugins, and enhance the user experience with features like exportable configuration and modal dialogs.

Drupal

Ques:- What is template.php in drupal?

Asked In :-

Right Answer:
`template.php` is a file in Drupal that allows developers to define theme-specific functions and preprocess functions to customize the output of templates and modify variables before they are rendered.

Drupal

Ques:- Explain the api in drupal 7?

Asked In :-

Right Answer:
The API in Drupal 7 consists of a set of functions and hooks that allow developers to interact with the core system and extend its functionality. Key components include:

1. **Hook System**: Allows modules to implement specific functions (hooks) that are called by Drupal at various points in the request lifecycle.
2. **Form API**: Provides a structured way to create and manage forms, including validation and submission handling.
3. **Database API**: Facilitates database interactions using a consistent interface, allowing for secure queries and data manipulation.
4. **Menu API**: Manages the creation of menu items and routing of requests to specific functions.
5. **Theme API**: Enables customization of the site's appearance through theming functions and templates.

These APIs help developers build and customize Drupal sites efficiently.

Drupal

Ques:- What are system requirements for drupal installation?

Asked In :-

Right Answer:
The system requirements for Drupal installation are:

1. A web server (Apache, Nginx, etc.)
2. PHP (version 7.3 or higher)
3. A database (MySQL 5.7 or higher, MariaDB 10.3 or higher, or PostgreSQL 10 or higher)
4. PHP extensions: PDO, GD, OpenSSL, mbstring, XML, and others as needed.
5. Composer (optional but recommended for managing dependencies).

Drupal

Ques:- What is a sub theme in drupal?

Asked In :-

Right Answer:
A sub-theme in Drupal is a theme that inherits the styles and functionality of a parent theme, allowing developers to customize and extend the parent theme without modifying its core files.

Drupal

Ques:- What is node in drupal?

Asked In :-

Right Answer:
In Drupal, a node is a single piece of content, such as a page, article, or blog post, that is stored in the database and can be managed through the Drupal interface.

Drupal

Ques:- Write down some modules that are used in drupal?

Asked In :-

Right Answer:
Some commonly used Drupal modules are:

1. Views
2. Pathauto
3. Webform
4. CKEditor
5. Token
6. Panels
7. Chaos Tool Suite (ctools)
8. Metatag
9. Devel
10. Backup and Migrate

Drupal

Ques:- How to interact with drupal search systems?

Asked In :- Relinns Technologies,

Right Answer:
To interact with Drupal's search systems, you can use the Search API module, which allows you to create custom search pages and configure various search backends. You can also use the built-in Search module for basic search functionality, and utilize Views to display search results in a customizable way. Additionally, you can implement hooks like `hook_search()` to modify search behavior or results.

Drupal

Ques:- what is pre process function?

Asked In :-

Right Answer:
A preprocess function in Drupal is a PHP function that allows developers to modify or add variables to a theme before it is rendered. It is typically used to prepare data for templates, enabling customization of the output.

Drupal

Ques:- What is drupal behaviors?

Asked In :-

Right Answer:
Drupal behaviors are a way to attach JavaScript functionality to elements on a Drupal page. They allow developers to define JavaScript that runs when the page is loaded or when specific events occur, ensuring that the scripts are applied correctly even when content is dynamically added or modified.

Drupal

Ques:- Explain roles, user and permissions?

Asked In :-

Right Answer:
In Drupal, roles are collections of permissions that define what actions users can perform on the site. Users are individual accounts that can be assigned one or more roles. Permissions are specific rights granted to roles, such as the ability to create content, edit content, or administer the site. By assigning roles to users, you control their access and capabilities within the Drupal site.

Drupal

Ques:- Name the five conceptual layers in drupal system.

Asked In :-

Right Answer:
The five conceptual layers in the Drupal system are:

1. **Database Layer**
2. **Data Model Layer**
3. **Application Layer**
4. **Presentation Layer**
5. **User Interface Layer**

Drupal

Ques:- How to use preprocess function?

Asked In :-

Right Answer:
To use a preprocess function in Drupal, you define it in your theme's `.theme` file. The function name should follow the format `YOURTHEME_preprocess_HOOK()`, where `HOOK` is the name of the template you are targeting (e.g., `page`, `node`, etc.). Inside the function, you can modify variables before they are passed to the template. For example:

```php
function yourtheme_preprocess_node(&$variables) {
// Add a custom variable.
$variables['custom_variable'] = 'Your value';
}
```

Drupal

Ques:- How to create the responsive theme?

Asked In :-

Right Answer:
To create a responsive theme in Drupal, follow these steps:

1. **Start with a Base Theme**: Use a responsive base theme like Bootstrap or Zen.
2. **Define Breakpoints**: In your theme's `.info.yml` file, define breakpoints for different screen sizes.
3. **Use CSS Media Queries**: Write CSS using media queries to adjust styles for various devices.
4. **Flexible Grid Layout**: Implement a flexible grid layout using CSS frameworks or custom CSS.
5. **Responsive Images**: Use the `srcset` attribute for images to serve different sizes based on screen resolution.
6. **Test Responsiveness**: Use browser developer tools to test and adjust the layout on different devices.

Finally, clear the cache to see the changes.

The Drupal category on takluu.com is designed for web developers, site administrators, and aspirants preparing for interviews involving Drupal content management system. Drupal is a powerful and flexible open-source CMS widely used for building complex and scalable websites.

This category includes questions on Drupal installation, theming, module development, site building, user roles and permissions, and security best practices. You’ll also find detailed explanations of Drupal’s architecture, hooks system, and database integration.

Interviewers often test candidates on custom module creation, configuration management, views, and how Drupal handles scalability and performance optimization. Understanding Drupal’s core concepts and hands-on experience is crucial to crack technical interviews in organizations that rely on this platform.

Whether you’re new to Drupal or have prior experience, this section provides well-structured content with real-world examples and problem-solving tips. It also covers differences between Drupal and other CMS platforms like WordPress and Joomla.

At Takluu, we regularly update the Drupal category with the latest versions, security updates, and development trends to keep you well-prepared for your career growth.

Questions in: Drupal

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