Interviews covering Linux commands, Java, SQL, project-related topics, and HR questions require a mix of technical and personal preparation. You may be asked about common Linux commands like grep, chmod, or monitoring processes, Java concepts such as polymorphism, garbage collection, or the difference between == and .equals(), and SQL topics like joins, query optimization, or finding duplicates. Be ready to discuss your projects, focusing on challenges, tools used, and task prioritization. HR and behavioral questions might delve into your hobbies, teamwork experiences, handling criticism, and stress management.