What is the SRP?
What is the Open-Closed Principle?
What is Liskov’s Object Replacement Principle?
What is the Interface Segregation Principle?
If you believe that being able to recite answers to questions like this makes you a good developer... then you probably also believe that it's possible to get a University Degree in 3 Minutes.
From Episode 6, "The General":
Number Twelve: What was the Treaty of Adrianople?
Number Six: [looks a bit puzzled, but answers automatically] September... 1829.
Number Twelve: Wrong. I said "What," not "When." You need some special coaching.