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Is it better to return NULL or empty values from functions/methods where the return value is not
present?

What does SOLID stand for? What are its principles?

"People who like this also like... ". How would you implement this feature in an e-commerce shop?

What is the difference between Concurrency and Parallelism?

What is the difference between Monolithic, SOA and Microservices Architecture?

How can you keep one copy of your utility code and let multiple consumer components use and deploy
it?

What is the difference between DTOs and ViewModels in DDD?

What Is Load Balancing Fail Over?

What is difference between Fault Tolerance and Fault Resilience?

Name some Performance Testing metrics to measure

What is the difference between the Clean and the N-Tier Architectures?

What Is Session Replication?

What does program to interfaces, not implementations mean?

What Is Middle Tier Clustering?

Describe what is the Event Sourcing Pattern

Explain the Single Responsibility Principle (SRP)?

What is the Command and Query Responsibility Segregation (CQRS) Pattern?

What is Back-Pressure?

What Is Sticky Session Load Balancing? What Do You Mean By "Session Affinity"?

Is Unit Of Work equals Transaction? Or it is more than that?

What Do You Mean By High Availability (HA)?

In OOP, what is the difference between the Repository Pattern and a Service Layer?

What Is ACID Property Of A System?

How Do you update a live heavy traffic site with minimum or Zero Down Time?

What is Bad Design?

What are the DRY and DIE principles?

Explain what is Interface Segregation Principle (ISP) in Clean Architecture and what are some of its benefits?

Explain the purpose of Clean Architecture Inner and Outer layers

Name some benefits of CQRS Patter

What is a Model in DDD?

What does it mean "System Shall Be Resilient"?

What is Elasticity (in contrast to Scalability)?

Name some Performance Testing best practices