Mastercard Interview Experience for SDE Summer Intern

Mastercard came to our campus this August (2023). There were a total of 4 Rounds, a Coding Round followed by 2 Technical + HR common Interview Round.

Round 1:

Two coding questions (Time allotted: 1hr)

Both problems were based on string-One is based on finding the rotation of a string and the other was string integer conversion.

40/190 students were shortlisted for the later round.

Round 2:

Technical 1:

So Interview asked me to introduce myself . Then he asked me for what purpose I use GitHub and linked. Then he asked what other fields interest me,so I replied cyber security based on which he asked me to differentiate between privacy and security(hard to frame it).

And then switched to the Technical part, starting with the language I preferred C++.

Questions:

He asked me about strings in Java (mutable or not string pool, methods, the difference between string/StringBuffer, etc)

Project discussion

Explain your projects, what concepts and technologies were used

OOPs, questions-

1. polymorphism
2. Difference between encapsulation and abstraction and its real-life example
3. Inheritance
4. Construct inheritance for school

DBMS questions- easy/medium SQL queries

DSA Questions:

1. Circular linked list and its implementation
2. Difference between stack and heap.
3. Reverse a linked list
4. Types of memory
5. Who founded c
6. difference between c and C++

HR Round 

1. Asked normal questions
2. Situation - If you have your marriage, a deadline, and have to go to USA,how will you manage
3. CEO of Mastercard
4. My favorite subjects and past experience

Tips-

1. Be calm and don't rush
2. Explain things using the diagram
3. Speak confidently

ALL THE BEST!!