Java Fundamentals: You were asked about Garbage Collection, String immutability, and the core differences between the JDK, JRE, and JVM. Coding Challenges: In your practice and recent interactions, you've tackled "Sliding Window Maximum" and "Move Zeroes" on LeetCode. Spring Boot & Architecture: For your iCIMS and TriNet preparation, the focus was heavily on the Spring Bean Lifecycle, REST API Idempotency, and AWS integration.