Deltax Interview Questions and Answers

Q1. About Delta X
Add your answer
Q2. You can leave!!!
Add your answer

It was a MCQ test on CS Fundamentals. We have to answer 50 questions in 40 minutes. Accuracy is must. Company have its own cutoff and it's usually high. So try to gain maximum marks as possible. The results were announced in 1.5 hrs. The selected candidates will be appearing for the coding challenge.

There are 5 questions. 1 easy , 3 medium, 1 hard. You should solve atleast 4 questions to get shortlisted for the interview. Results are announced in 2-3 hours. Take a look at these questions. One of the questions from the coding challenge will be asked in the interview.

Q1. Email validation question from coding challenge
Ans. 
Email validation ensures that a given email address is formatted correctly according to standard conventions.
• An email must contain an '@' symbol, e.g., 'user@example.com'.

• It should have a domain name after the '@', e.g., 'example.com'.

• Valid characters include letters, numbers, and certain symbols like '.', '_', and '-'.

• The domain must have a valid top-level domain (TLD), e.g., '.com', '.org'.

• Examples of invalid emails:...read more
Answered by AI
Add your answer
Q2. Binary Search on rotated arrays
Ans. 
Binary search on rotated arrays involves finding a target value in a sorted array that has been rotated at an unknown pivot point.
• Identify the pivot point by finding the minimum element in the array.

• Determine which half of the array the target value falls into based on the pivot point.

• Perform binary search on the appropriate half of the array to find the target value.
Answered by AI
Add your answer
Q3. About projects (reason behind using the mentioned database)
Ans. 
Choosing the right database is crucial for project success, impacting performance, scalability, and data integrity.
• Relational databases like MySQL are ideal for structured data with complex queries, e.g., financial applications.

• NoSQL databases like MongoDB are suited for unstructured data and scalability, e.g., social media platforms.

• In-memory databases like Redis provide high-speed data access, beneficial for real-tim...read more
Answered by AI
Add your answer
Q4. Use of package.json file
Ans. 
package.json file is used in Node.js projects to manage dependencies, scripts, and metadata.
• Contains project metadata like name, version, description, etc.

• Lists dependencies required for the project to run.

• Defines scripts for tasks like building, testing, and running the project.

• Can include configurations for tools like ESLint, Babel, etc.
Answered by AI
View 1 more answer
Q5. What are scripts in package.json file
Ans. 
Scripts in package.json file are commands that can be run using npm.
• Scripts are defined under the 'scripts' key in package.json.

• Common scripts include 'start', 'test', 'build', etc.

• Scripts can be run using 'npm run '.
Answered by AI
Add your answer

General test which you will be able to solve based on general aptitude questions and also another test that includes viewing video, and hearing test.

A video submission of how you would stratergise some question given by them.

Q1. General questions, and mathematical oral question/puzzles
Add your answer
Q2. About your resume
Add your answer
Q3. Marketing related questions
Add your answer

Q1. General questions
Add your answer
Q2. Some resume questions
Add your answer
Q3. Puzzles, They keep pushing you to answer.
Add your answer

This round is all about technical mcqs from theory subjects and programming. No aptitude, reasoning questions.

I have to solve 5 questions in 2 hrs.

Q1. Ask to solve a DP question given in the coding test.
Ans. 
Dynamic Programming (DP) is a method for solving complex problems by breaking them down into simpler subproblems.
• DP is used in optimization problems, like the Knapsack problem.

• It involves storing results of subproblems to avoid redundant calculations.

• Example: Fibonacci sequence can be computed efficiently using DP.

• DP can be implemented using either a top-down (memoization) or bottom-up (tabulation) approach.
Answered by AI
Add your answer
Q2. Ask to solve another medium level leetcode question.
Add your answer
Q3. Ask about projects and Internship experienced.
Add your answer
Q4. Ask OOPS questions.
Add your answer
Q5. Ask me to design Zomato's dish rating feature.
Ans. 
Design a dish rating feature for Zomato to enhance user engagement and improve restaurant visibility.
• User Interface: Simple star rating system (1-5 stars) for quick feedback.

• Detailed Reviews: Allow users to write reviews with pros and cons for each dish.

• Photo Upload: Enable users to upload photos of the dishes they rated.

• Filter Options: Users can filter dishes by ratings, cuisine, or popularity.

• Incentives: Reward users...read more
Answered by AI
Add your answer