| | Book Title | Why better | | :--- | :--- | :--- | | Tanenbaum | Computer Networks (5th/6th Ed) | The global Bible of networking. | | Forouzan | Data Communications and Networking | Best for beginners; tons of diagrams. | | Stallings | Data and Computer Communications | More advanced; great for security. |
Here is the good content you are looking for, organized by utility. If you have downloaded a PDF, check this TOC to ensure it is the correct book by J.S. Katre (often published by Tech-Neo Publications or Nirali Prakashan ). Computer Network Pdf By J.s Katre