Blockchain is a distributed record technology in which transactions can be stored in linked, tamper-evident records. MCA students interested in the area should understand distributed systems, consensus and smart-contract concepts. Students can judge their progress in blockchain by solving problems independently instead of depending entirely on guided tutorials. This point is specifically relevant to the blockchain aspect of MCA study. For this specific question about blockchain, the practical takeaway is to relate the concept to your own MCA learning goal. In other words, this guidance addresses: What skills are needed for blockchain after an MCA?