Master OOP, Python, Java, DSA, SQL, OS, Computer Networks, Cloud, SDLC, AI/ML, Puzzles & 74 Real-World Technical Questions for Freshers
10 Questions: Four Pillars (Encapsulation, Inheritance, Polymorphism, Abstraction), Method Overloading vs Overriding, Abstract Class vs Interface, Constructor Overloading, Access Specifiers, Static vs Dynamic Binding & More.
4 Questions: Lambda Functions, List Comprehensions, Python Kernel, Pickling & Unpickling — Based on Real TCS Interviews.
4 Questions: Exception Handling (try-catch-finally, throw, throws), OutOfMemoryError, C++ vs Java, try-catch vs throws — Based on Real TCS Interviews.
10 Questions: Time Complexity (Access/Search/Insert/Delete), Linked List Types, Tree Applications, Reverse Linked List, Second Largest Element, Anagram Check, Swap Without Third Variable, Palindrome, Reverse String & More.
10 Questions: Normalization (1NF-2NF-3NF), TRUNCATE vs DELETE, ACID Properties, 2nd Highest Salary, 4th Highest Salary, JOIN Types, Self Join, NoSQL, 3-Level Architecture, Employees Above Department Average & More.
7 Questions: Process vs Thread, Race Condition, Scheduling Algorithms (FCFS, SJF, SRTF, Round Robin, Priority), Virtual Memory, Paging vs Segmentation, Deadlock Conditions, Mutex vs Semaphore.
4 Questions: OSI Model (7 Layers), TCP vs UDP, TCP Three-Way Handshake (SYN, SYN-ACK, ACK), HTTP vs HTTPS — Based on Real TCS Interviews.
6 Questions: What is Cloud Computing, IaaS vs PaaS vs SaaS, Key AWS Services (EC2, S3, RDS, Lambda, VPC, IAM), CPU vs GPU, Docker, Virtual Environment (venv, conda).
3 Questions: SDLC Lifecycle (7 Phases: Planning, Analysis, Design, Development, Testing, Deployment, Maintenance), Agile Methodology (Sprints, Stand-ups, Review, Retrospective), Waterfall Model vs Agile.
6 Questions: Machine Learning Types (Supervised, Unsupervised, Reinforcement), AI vs ML vs Data Science, TensorFlow, PyTorch vs TensorFlow, NumPy vs Pandas, Libraries for Data Cleaning.
4 Questions: 5 Machines 5 Pens in 5 Minutes, Bird on a 50kg Car on a 50kg Bridge, Cake into 8 Pieces with 3 Cuts, 5L and 3L Bucket — Measure 4L.
6 Questions: Why TCS?, Why Should We Hire You?, Willing to Relocate?, Flexible with Any Shift?, Who is the CEO of TCS? (K. Krithivasan), Who is the Founder of TCS? (J.R.D. Tata, 1968).
