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ADP | GPT Intern | 4 Rounds | June 2025
Summary
I successfully cleared 4 rounds of interviews for the GPT Intern role at ADP in June 2025, which included an Online Assessment, two Technical Interviews focusing on Java, SQL, and projects, and an HR interview. I was offered the position.
Full Experience
Round 1: Online Assessment (MCQ-Based)
Platform: ADP Pariksha
Format:
- Total Sections: 3
- Logical Reasoning – Patterns, sequences, puzzles
- Aptitude & Quantitative – Basic math, profit-loss, percentages
- Java MCQs – OOPs, exceptions, collections, strings
Duration: ~60-75 minutes
Tip: Focus on core Java concepts and practice aptitude regularly from platforms like PrepInsta or GeeksforGeeks.
Round 2: Technical Interview 1 (Java + SQL + Resume Discussion)
- Walkthrough of my resume
- Questions on Java:
- Difference between ArrayList and LinkedList
- Java threads
- OOP principles with examples
- Exception handling
- SQL Queries:
- Joins (asked to write queries)
- Diff btw Truncate and Delete
- Query to find second highest salary
- GROUP BY and HAVING usage
- Basic OS/DBMS theory (only 1–2 questions)
- Python Prog to print the frequency of characters in the string
Overall focus: Java fundamentals, SQL queries, and how well you understand your resume
Round 3: Technical Interview 2 (Project-Centric)
- Deep dive into my major projects
- Told to write the code of one of my project
- Asked about:
- Architecture and tech stack
- Real-life use case and scalability
- Challenges faced and how I solved them
- Follow-up questions on Git usage and teamwork
Tip: Be ready to write and explain each line of code and design choices for your projects. Keep your GitHub clean and updated.
Round 4: HR Interview
- Tell me about yourself
- Tell me about your family background
- Why should we hire you?
- Where do you see yourself in the next five years?
- Comfortable relocating and working at night shifts?
- A few scenario-based behavioral questions
Friendly and conversational round. They were checking for attitude and cultural fit.
Final Result:
✅ Selected
Interview Questions (15)
Explain the differences between ArrayList and LinkedList in Java.
Discuss Java threads.
Explain Object-Oriented Programming (OOP) principles with relevant examples.
Discuss exception handling mechanisms in Java.
Explain different types of SQL Joins and be prepared to write queries using them.
What is the difference between TRUNCATE and DELETE commands in SQL?
Write an SQL query to find the second highest salary from a table.
Explain the usage of GROUP BY and HAVING clauses in SQL.
Write a Python program to print the frequency of each character in a given string.
Tell me about yourself.
Tell me about your family background.
Why should we hire you for this role?
Where do you see yourself in the next five years?
Are you comfortable with relocating and working night shifts?
Answer a few scenario-based behavioral questions.
Preparation Tips
My Preparation Strategy:
- DSA: LeetCode Easy/Medium (Arrays, Strings, HashMaps)
- Java: Notes + practice from GFG
- Aptitude
- Resume & Projects
Takeaways:
- Projects + Java + SQL are key for ADP GPT Intern roles
- Keep answers crisp and structured
- Mock interviews help a lot
Feel free to reach out if you’re preparing. Happy to help!