MasterCard Interview Experience For SDE Internship

• Two coding questions based on strings:
• Finding the rotation of a string.
• String-to-integer conversion.
• 40 out of 190 students were shortlisted for the next round.

• Started with self-introduction and questions about GitHub and LinkedIn.
• Discussed other fields of interest (e.g., cybersecurity).
• Differentiated between privacy and security.

Technical part

• Preferred language: C++.
• Questions on strings in Java (mutability, string pool, methods).
• Project discussion (concepts and technologies used).
• Oops, questions (polymorphism, encapsulation, abstraction, inheritance).
• DBMS questions (easy/medium SQL queries).

• Covered data structures and algorithms:
• Circular linked list implementation.
• Difference between stack and heap.
• Reversing a linked list.
• Types of memory.
• Founder of C.
• Difference between C and C++.

HR Round:

• Asked normal questions
• Handling a situation with marriage, a deadline, and travel to the USA.
• CEO of Mastercard.
• Favourite subjects and experience.

Tips:

1. Stay calm and avoid rushing.
2. Use diagrams to explain concepts.
3. Speak confidently.