Internet Protocol Suite Basics Questions

Covers fundamental networking concepts centered on the Internet protocol suite and how its layers map to practical network functions. Topics include comparison of layering models, link layer operation and address resolution, Internet layer addressing and routing including Internet Protocol version four and Internet Protocol version six, subnetting and classless interdomain routing, transport layer semantics such as the Transmission Control Protocol three way handshake, congestion control and reliability, User Datagram Protocol use cases, common control protocols such as the Internet Control Message Protocol and address resolution mechanisms, network address translation, sockets and port concepts, domain name resolution, dynamic host configuration approaches, fragmentation and maximum transmission unit considerations, packet encapsulation and decapsulation, and basic troubleshooting and diagnostic concepts. Interviews assess conceptual understanding and the ability to reason about packet flow, addressing, and protocol behavior under failure or attack conditions.