Cognizant Software Developer interview questions

It was for 45 mind. They asked me to code a question in a laptop. And asked various questions from DBMS, computer Networks, cryptography and network security. They asked me about projects or skill that I haven't added in my resume

Four rounds, including two technical interviews with manager and end client. Focused on Java, JavaScript, basic programming, data structures, and algorithms. Prepare to demonstrate the expertise and full-stack development skills.