Interview Questions

 Visa Interview Experience

Compensation: 50L + 7
Position: Senior Software Engineer
Application Method: Direct Application

𝗥𝗼𝘂𝗻𝗱 𝟭: 𝗢𝗻𝗹𝗶𝗻𝗲 𝗔𝘀𝘀𝗲𝘀𝘀𝗺𝗲𝗻𝘁 (𝗛𝗮𝗰𝗸𝗲𝗿𝗥𝗮𝗻𝗸)
- SQL Questions: Simple join-based queries
- Use of RANK() function
- Coding Questions (Java): Array iteration and lookup-based problem
- Merge Two Sorted Linked Lists
- Subjective Java Question: Java memory management
- How to decide JVM memory allocation
- Considerations while allocating memory to JVM

𝗥𝗼𝘂𝗻𝗱 𝟮: 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗥𝗼𝘂𝗻𝗱 (𝗝𝗮𝘃𝗮 + 𝗖𝗼𝗱𝗶𝗻𝗴)
- Coding: Best Time to Buy and Sell Stock
- Java Concepts: OOP: Encapsulation vs Abstraction
- Default methods in interfaces vs Abstract classes
- Collections: HashMap, TreeMap, HashSet
- Fail-safe vs Fail-fast iterators
- HashMap initial size and resizing
- JVM Architecture: Purpose of 3 types of ClassLoaders
- Object immutability
- Garbage Collection types and algorithms
- Thread Pools: Types and use cases
- String pool vs regular objects
- How to store sensitive data (char[] vs String)
- Java Streams: Grouping by multiple keys and frequency counting

𝗥𝗼𝘂𝗻𝗱 𝟯: 𝗛𝗶𝗿𝗶𝗻𝗴 𝗠𝗮𝗻𝗮𝗴𝗲𝗿 𝗥𝗼𝘂𝗻𝗱
- System Design: Design a write-intensive server that supports both read and write operations, with trade-off discussions
- High-Level Design (HLD): Design BookMyShow system
- Behavioral Questions: Standard project and team collaboration discussions