Networking Interview Questions & Answers

Showing 6 of 66 questions | Page 7

Networking technical interview questions and answers are essential for anyone preparing for IT support, system administration, or network engineering roles. In most companies, networking is the backbone of communication, security, and server operations, which is why recruiters evaluate candidates on core concepts like OSI Model, TCP/IP, protocols, IP addressing, routing, switching, and troubleshooting. Whether you are a fresher or an experienced candidate, mastering networking topics helps you perform confidently during technical rounds. These questions are commonly asked in companies like TCS, Wipro, Infosys, Accenture, Cognizant, and Capgemini during campus placements and lateral hiring. In this guide, you will learn frequently asked networking interview questions with answers, simple explanations, and practical examples. You can also download PDFs and practice mock interview sets to strengthen your preparation for both technical interviews and placement tests.

Showing 6 of 66 questions

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61. What is Kerberos?

It is an authentication service developed at the Massachusetts Institute of Technology. Kerberos uses encryption to prevent intruders from discovering passwords and gaining unauthorized access to files.

62. What is OSPF?

It is an Internet routing protocol that scales well, can route traffic along multiple paths, and uses knowledge of an Internet's topology to make accurate routing decisions.

63. What is Proxy ARP?

It is using a router to answer ARP requests. This will be done when the originating host believes that a destination is local, when in fact is lies beyond router.

64. What is SLIP (Serial Line Interface Protocol)?

It is a very simple protocol used for transmission of IP datagrams across a serial line.

65. What is RIP (Routing Information Protocol)?

It is a simple protocol used to exchange information between the routers.

66. What is source route?

It is a sequence of IP addresses identifying the route a datagram must follow. A source route may optionally be included in an IP datagram header.