MCS-42 Data Communication and Computer Networks Block 1 - Introduction to Data Communication and Computer Network Concepts Introduction to Computer Network Data Transmission Data Encoding and Communication Technique Multiplexing and Switching Block 2 - Media Access Control and Data Link Layer Data Link Layer Fundamentals Retransmission Strategies Contention-based Media Access Protocols Wireless LAN and Datalink Layer Switching Block 3 - Network Layer Introduction to Layer Functionality and Design Issues Routing Algorithms Congestion Control in Public Switched Network Internetworking Block 4 - Transport Layer and Application Layer Services Transport Services and Mechanism TCP/UDP Network Security-I Network Security-II Total-18, Solved-11, Unsolved-7 June (2011-2019) December (2010-2018)