Job-Ready Series · Job-Ready Series

Computer Networks

by Shreyash Tripathi · Full-Stack Developer & UI/UX Engineer

Everything about networks that interviews ask and real jobs use: OSI to TCP, subnetting to TLS, ping to Wireshark. Simple language, worked numericals, humour and 100+ interview questions with answers.

OSI and TCP/IP to TLS
Worked subnetting numericals
100+ interview questions with answers

Complete edition · 364 pages · PDFShort edition · 164 pages · PDF

download_free_preview request_full_book

Free preview: first 2 chapters (45 pages). Full book: free on request for now, sent by email.

What's inside

19 chapters and sections. The ones marked free are in the preview.

1. Introduction to Computer Networksfree
2. Network Models: OSI and TCP/IPfree
3. Physical Layer, Transmission Media and Switching
4. Data Link Layer
5. Network Layer I: IP Addressing and Subnetting
6. Network Layer II: Routing and Supporting Protocols
7. Transport Layer: TCP and UDP
8. Application Layer I: DNS and the Web
9. Application Layer II: Email, File Transfer and Remote Access
10. Network Security
11. Wireless, Mobile and Modern Networks
12. Data Center and Cloud Networking
13. Network Troubleshooting and Tools
14. Putting It Together: What Happens When You Type a URL, and Socket Programming
15. Computer Networks Interview Question Bank
Appendix A: Ports and Protocols Cheat Sheet
Appendix B: Subnetting Quick Reference
Appendix C: Glossary
Appendix D: Sample Question Paper with Answers

Who this book is for

Students in placement season preparing for campus drives and off-campus interviews
Students applying for internships who want one complete, simple resource
Developers preparing for a job switch who need a fast but complete revision

Study plan for placements

01 Complete edition: one chapter a day takes about 19 days.
02 Short edition: two chapters a day takes about 10 days, good for the last weeks before interviews.
03 Read the worked examples, then answer the interview questions without looking before checking the answers.

Computer Networks: questions students ask

Is Computer Networks good for placement preparation?

Yes, it was written for students preparing for placements, internships and interviews. It starts from the basics (Introduction to Computer Networks, Network Models: OSI and TCP/IP, Physical Layer, Transmission Media and Switching) and goes all the way to Putting It Together: What Happens When You Type a URL, and Socket Programming, with 100+ interview questions with answers.

Is there a free PDF of Computer Networks?

Yes. The free preview PDF on this page has the first 2 chapters (45 pages). The full book is free on request for now: use the "request full book" button and it's sent to you by email.

How long does it take to finish Computer Networks?

Complete edition: one chapter a day takes about 19 days. Short edition: two chapters a day takes about 10 days, good for the last weeks before interviews.

What is the difference between the Complete and Short editions?

Both cover the same 19 chapters. The Complete edition (364 pages) explains every topic in depth with more examples; the Short edition (164 pages) is a faster, revision-friendly version for the weeks just before interviews.

Who wrote Computer Networks?

Shreyash Tripathi, a Full-Stack Developer and UI/UX Engineer from India. He wrote the Job-Ready Series after struggling with scattered study material before his own placements, to give students one clear resource per subject.

Why I wrote these books

Before placements, my problem wasn't a lack of material. It was too much of it. A playlist for DBMS, a PDF for OS, three websites for DSA, and a new "must-watch" video every day. I kept switching sources, kept getting distracted, and never knew if I had covered what interviews actually ask.

I wrote them for students and early-career developers who want a serious internship or job and are tired of jumping between ten sources. Start with the free preview. If it helps, ask me for the full book.

— Shreyash Tripathi