How can MCA students prepare for blockchain?

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. When preparing for an IT role, be ready to explain how blockchain works and where you would use it in a real application. 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: How can MCA students prepare for blockchain?