---
title: "Aman Singh (@aman132) | Hashnode"
description: "Hey folks! I’m Aman. I'm currently in my second year of BCA in Information Technology and learning frontend development with the help of various communities...."
url: "https://hashnode.com/@aman132"
---

@aman132

# Aman Singh

@aman132 · India · Joined August 2023

### [Before You Build Anything, Write PRD First](https://amanlearn.hashnode.dev/before-you-build-anything-write-prd-first?utm_source=hashnode&utm_medium=feed)

PRD explains the power of clarity before coding.

5 min read · [amanlearn.hashnode.dev](https://amanlearn.hashnode.dev/before-you-build-anything-write-prd-first?utm_source=hashnode&utm_medium=feed)

[Nov 2, 2025](https://hashnode.com/posts/before-you-build-anything-write-prd-first/69071b4f0f7fed1569cdcdba)

### [Understanding TCP/IP and the OSI Model: A Comprehensive Guide](https://amanlearn.hashnode.dev/understanding-tcpip-and-the-osi-model-a-comprehensive-guide?utm_source=hashnode&utm_medium=feed)

Ultimate Guide to TCP/IP and OSI Model Basics

4 min read · [amanlearn.hashnode.dev](https://amanlearn.hashnode.dev/understanding-tcpip-and-the-osi-model-a-comprehensive-guide?utm_source=hashnode&utm_medium=feed)

[Jul 11, 2024](https://hashnode.com/posts/understanding-tcpip-and-the-osi-model-a-comprehensive-guide/668ffffa34d9a6f89ef516b8)

### [Core Components in Network Systems](https://amanlearn.hashnode.dev/core-components-in-network-systems?utm_source=hashnode&utm_medium=feed)

Basic Building Blocks of Computer Networks

5 min read · [amanlearn.hashnode.dev](https://amanlearn.hashnode.dev/core-components-in-network-systems?utm_source=hashnode&utm_medium=feed)

[Jul 2, 2024](https://hashnode.com/posts/core-components-in-network-systems/66843c28550841ab8d6a3d7d)

### [SQL Made Easy: Important Operations and Aggregation Basics](https://amanlearn.hashnode.dev/sql-made-easy-important-operations-and-aggregation-basics?utm_source=hashnode&utm_medium=feed)

SQL Operations and Aggregation Explained

6 min read · [amanlearn.hashnode.dev](https://amanlearn.hashnode.dev/sql-made-easy-important-operations-and-aggregation-basics?utm_source=hashnode&utm_medium=feed)

[Jun 27, 2024](https://hashnode.com/posts/sql-made-easy-important-operations-and-aggregation-basics/667cbe6d36b9d10d025d512b)

### [Enhancing SQL Queries with Constraints and Filters](https://amanlearn.hashnode.dev/enhancing-sql-queries-with-constraints-and-filters?utm_source=hashnode&utm_medium=feed)

Optimize SQL Queries by Applying Constraints and Filters

5 min read · [amanlearn.hashnode.dev](https://amanlearn.hashnode.dev/enhancing-sql-queries-with-constraints-and-filters?utm_source=hashnode&utm_medium=feed)

[Jun 22, 2024](https://hashnode.com/posts/enhancing-sql-queries-with-constraints-and-filters/6676fdd1948e7023c65ea0c2)