TCS
Large multinational IT services and consulting enterprise based in India.
3 Rounds
~14 Days
Medium
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Backend Engineer
•
Technical
•
medium
Explain the internal working of ConcurrentHashMap in Java. How does it differ from a synchronized HashMap?
#Collections
#Multithreading
#Concurrency
Backend Engineer
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Technical
•
hard
How does Garbage Collection work in Java? What is the difference between G1GC and ZGC?
#JVM
#Memory Management
#Performance Tuning
Software Engineer
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Coding
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medium
Write a Java 8 program using Streams to find the second highest number in an array of integers.
#Java 8
#Streams API
#Arrays
Software Engineer
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Technical
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medium
Explain the internal working of a HashMap in Java. What specific optimization was introduced in Java 8 to handle frequent hash collisions?
#Collections Framework
#Data Structures
#Hashing
Software Engineer
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Technical
•
medium
What are the different types of memory areas allocated by the JVM? Where are objects and local variables stored?
#JVM
#Memory Management
#Garbage Collection
Software Engineer
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Technical
•
medium
What is the difference between fail-fast and fail-safe iterators in Java? Give an example of each.
#Collections
#Iterators
#Concurrency
Difficulty Radar
Based on recent AI-sourced data.
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The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
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Think Out Loud
Always explain your thought process before writing code or drawing architecture.