This blog is based on actual questions asked in a TCS Data Engineer Interview (Round 1) and, more importantly, explains what interviewers really expect behind each question. If you are preparing for TCS or similar data engineering roles, this guide will help you align your answers with practical thinking rather than theoretical explanations.
Month: December 2025
Why Are LLMs Considered the “Brain” of Modern AI Agents?
When people talk about AI Agents or Agentic AI, one question often comes up:
“What actually makes an AI agent intelligent?”
The short answer is: Large Language Models (LLMs).
LLMs are often called the “brain” of modern AI agents — and for good reason. Let’s understand why in simple terms:
What are Transformers in AI?
If you’ve ever wondered how ChatGPT, Gemini, or Claude can understand long sentences, follow context, and give human-like replies — the secret lies in a powerful deep learning architecture called the Transformer.
Let’s break it down step-by-step: