Comments from others address most of the technical questions. Compute (Auto scaling, Load balancing, 3 Tier design), Network (DNS, OSI, 3 Way handshaking, Initiate http traffic), Security (How to protect against DDOS, SQL injection, XSS attack, IAM), Database (SQL vs NoSQL)
The most difficult part are the behavioural questions, demonstrating 16 LPs with "your hands on practical projects story" using STAR method. The assigned talent acquisition recruiter should brief you what kind of LPs out of 16 would be chosen.