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DataTerrain Python and Django Developer Interview Questions, Process, and Tips
DataTerrain Python and Django Developer Interview Experiences
1 interview found
Anonymous
I applied via LinkedIn and was interviewed in Dec 2024. There was 1 interview round.
(9 Questions)
- Q1. How to use decorator and explain the difference between @login_required and @permission_required in Django?
- Ans.
Decorators in Django are used to modify the behavior of functions or methods. @login_required ensures user authentication, while @permission_required checks for specific permissions.
Decorators are functions that wrap another function to modify its behavior.
@login_required decorator ensures that the user is authenticated before accessing a view.
@permission_required decorator checks if the user has specific permissions b...
- Q2. How to revert the previous changes made on the database server in Django i.e., Migration A, B, C, D you are now ready with new changes as E but need to revert the changes B?
- Ans.
To revert changes made in Django migrations, use the command 'python manage.py migrate <app_name> <migration_name>'.
Use the command 'python manage.py showmigrations' to list all migrations and their names.
Identify the migration name you want to revert (e.g., 'app_name', '0002_migration_name').
Run the command 'python manage.py migrate <app_name> <migration_name>' to revert the specific migration.
- Q3. How to fetch API data in Django from server using params and it can fetch data dynamically i.e., -----/?querydata=seetha, here the query data may be a username, email, mobile number, register number, regis...
- Ans.
To fetch API data in Django from server using params dynamically.
Use Django's HttpRequest object to access query parameters
Extract the query parameter value using request.GET.get('querydata')
Use the extracted value to dynamically fetch data from the server
- Q4. What is difference between Class-based views and function-based views?
- Ans.
Class-based views are based on classes and provide more structure and functionality, while function-based views are based on functions and are simpler and more flexible.
Class-based views are defined as classes and inherit from Django's generic view classes, providing built-in functionality such as mixins and decorators.
Function-based views are defined as functions and are more flexible, allowing for custom logic and co...
- Q5. What are SQL Procedures and Triggers, when the triggers are used?
- Ans.
SQL Procedures are stored SQL code that can be executed on demand. Triggers are special types of stored procedures that are automatically executed when certain events occur.
SQL Procedures are reusable blocks of SQL code that can be called by other programs or scripts.
Triggers are special types of stored procedures that are automatically executed when specific events occur in the database.
Triggers are commonly used for ...
- Q6. How to handle the different type of databases in Django? Have you done before in your projects?
- Ans.
Django supports multiple databases through its database router feature.
Django allows defining multiple database connections in settings.py
Use database routers to route specific models to different databases
Example: routing user data to a separate database for better performance
- Q7. How the REST API works and what are the methods are available and explain?
- Ans.
REST API is a set of rules and conventions for building and interacting with web services.
REST stands for Representational State Transfer
Methods available in REST API are GET, POST, PUT, DELETE
GET - Used to retrieve data from a server
POST - Used to send data to a server to create a new resource
PUT - Used to update an existing resource on the server
DELETE - Used to remove a resource from the server
Example: GET request t
- Q8. What is custom middleware, how to create and explain with example code?
- Ans.
Custom middleware in Django allows for processing requests and responses before reaching views.
Custom middleware is a Python class that defines methods to process requests and responses in Django.
To create custom middleware, define a class with methods like process_request, process_response, etc.
Register the custom middleware in the Django settings.py file under the MIDDLEWARE key.
Example code: class CustomMiddleware: ...
- Q9. What is the mechanism for utilizing message queues and caching systems?
- Ans.
Message queues and caching systems are used to improve performance and scalability in web applications.
Message queues help in decoupling components by allowing asynchronous communication between them.
Caching systems store frequently accessed data in memory to reduce database load and improve response times.
Popular message queue systems include RabbitMQ, Kafka, and Redis.
Common caching systems include Memcached and Redi...
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Interview questions from similar companies
Selected
I applied via Approached by Company and was interviewed in Nov 2024. There were 2 interview rounds.
(1 Question)
- Q1. Write a code for reverse an integer?
- Ans.
Use string manipulation to reverse an integer in Python.
Convert the integer to a string
Use string slicing to reverse the string
Convert the reversed string back to an integer
(1 Question)
- Q1. Differences between docker image and container
- Ans.
Docker image is a template used to create containers, while a container is a running instance of an image.
Docker image is read-only, while a container is a writable instance of an image.
Multiple containers can be created from the same image, but each container is isolated from others.
Containers can be started, stopped, moved, and deleted, while images are static and cannot be changed.
Images are used to package an appli...
It was general aptitude test .
Easy to medium level coding questions
(2 Questions)
- Q1. Oops related questions
- Q2. Indepth dive into concepts of c++
(2 Questions)
- Q1. Where do you see yourself in 5 years
- Ans.
In 5 years, I see myself as a senior Python and Django developer leading a team of developers on innovative projects.
Continuing to enhance my skills in Python and Django development
Taking on more leadership roles within the development team
Contributing to the success of the company through my technical expertise
Possibly pursuing certifications or advanced degrees to further my knowledge
- Q2. Why do you want to join the company
- Ans.
I am excited about the company's innovative projects and collaborative work environment.
I am impressed by the company's reputation in the industry.
I believe my skills and experience align well with the company's goals.
I am eager to work with a talented team and contribute to the company's success.
Pandian G
(1 Question)
- Q1. Abstract class vs concrete class
- Ans.
Abstract class defines structure, concrete class provides implementation.
Abstract class cannot be instantiated, concrete class can be.
Abstract class can have abstract methods, concrete class must implement them.
Concrete class provides implementation for abstract methods defined in abstract class.
(2 Questions)
- Q1. List & tuple diff
- Q2. Pickling & unpickling
Interview Preparation Tips
I applied via Company Website and was interviewed in May 2024. There was 1 interview round.
(3 Questions)
- Q1. Basic python questions coupled with a simple problems
- Q2. SQL Joins, Aggregration
- Q3. Deep dive into Django, unittesting and jinja templating
Interview Preparation Tips
Python and Django Developer Interview Questions & Answers
Tech Mahindra
Ravi Shankar
posted on 22 Sep 2024
1 round of 2 coding .one is on python substring reversal and another is on palindrome
(2 Questions)
- Q1. Tell me about yourself
- Ans.
I am a Python and Django Developer with 5 years of experience in building web applications.
5 years of experience in Python and Django development
Proficient in building web applications using Django framework
Strong understanding of object-oriented programming principles
Experience with front-end technologies like HTML, CSS, and JavaScript
Familiarity with database management systems like MySQL and PostgreSQL
- Q2. Describe situation when u are dealing with leadership conflict
- Ans.
Handled leadership conflict by facilitating open communication and finding common ground.
Addressed the issue directly with the conflicting parties
Encouraged active listening and empathy
Facilitated a meeting to discuss concerns and find common ground
Sought input from team members to reach a resolution
Implemented a plan to prevent future conflicts
Python and Django Developer Interview Questions & Answers
HCLTech
pratap patil
posted on 30 Aug 2024
Selected
Coding test was moderate level
Case study given one case study asked questions on that
(1 Question)
- Q1. Salary expected
- Ans.
Negotiable based on experience, skills, and industry standards.
Salary expectations are influenced by factors such as experience, skills, location, and company size.
Research average salaries for Python and Django developers in your area to set realistic expectations.
Consider the benefits package offered by the company in addition to the base salary.
Be prepared to discuss your salary expectations during the interview pro
Interview Preparation Tips
Selected
I applied via Walk-in and was interviewed in May 2024. There were 2 interview rounds.
Marepally Mahesh Auraspally
Django python assessment
Selected
I applied via Naukri.com and was interviewed in Mar 2023. There were 5 interview rounds.
Aptitude test and arthmetic
Python Developer
Django framework
MySQL and UI
(1 Question)
- Q1. I'm fresher Python Full Stack Developer
(2 Questions)
- Q1. Salary discussion
- Q2. About my technical skills
Interview Preparation Tips
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