About Us

 

About Us

Welcome to Interview preparation for Network Engineers. – your trusted source for networking knowledge, tutorials, and hands-on guides (after theory is finished).

I started this blog with a passion for network engineering and IT infrastructure. Over the years, I’ve worked with technologies like routers, switches, firewalls, and I wanted to share that experience in a way that helps professionals, students, and businesses understand networking better.

• What You’ll Find Here:-

  • Step-by-step guides on networking concepts (Basic networking protocols- ARP, DHCP, DNS, etc. and Switching, Routing, Firewalls, etc.)
  • Real-world configuration examples. May include configuration tutorials later after finished with the Theory.  
  • Comparisons and best practices for scalable networks
  • Tips for networking IT professionals preparing for interviews.

• Our Mission:-

To simplify complex networking topics and provide valuable resources that help readers grow their technical skills, improve their IT infrastructure, and stay updated with industry best practices.

• Get in Touch:-

If you’d like to collaborate, ask a question, or just say hello, feel free to reach out through our Contact Page.









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TYPES OF ARP

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ARP (Address Resolution Protocol)

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  ARP     Table of Contents:- 1.     Introduction. 2.     Simplified Explanation of Packet Flow at L3 and L2. 3.     Why do we need ARP. 4.     What is ARP and How does It work. 5.     ARP Header. 6.     Flow of ARP. 7.     The FOUR cases of ARP. 8.     Questions asked from ARP in the Network Engineer L1 Interview. Ÿ Having read in the OSI Model you must be knowing that Layer 3 that is your network layer is responsible for end-to-end delivery of the packet whereas L2 is responsible for the next hop delivery of the packet. Ÿ Although ARP is a Layer 2 protocol but I consider it to be working somewhere in between L3 and L2. Ÿ Before understanding ARP let me explain you an overview of the packet flow according to L3 and L2.             ** Considering 1,2,11,12,21,22 as the IP’s and A,...
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OSI and TCP/IP Model

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OSI MODEL   Table of Contents:- 1.     Introduction. 2.     Need of OSI MODEL. 3.     Definition of OSI MODEL. 4.     The 7 Layers and Their Explaination. 5.     TCP/IP MODEL. 6.     Difference between Segmentation and Fragmentation. 7.     Difference between MSS and MTU. 8.     Example for a better understanding of L2,L3,L4. 9.     Questions asked from OSI MODEL in the L1 Interview. l INTRODUCTION :- It is not an actual thing. It's just a conceptual Framework model that we have created for our reference to understand the complexity of the technology or network Infra, to ease troubleshooting and many more ways. After the completion of the Topic I’ll be providing you with the INTERVIEW QUESTIONS FOR NETWORK ENGINEER L1 ASKED FROM OSI MODEL and an Example for the better understanding of Layer 2, 3 and 4, where most of the people are...
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