This was an L1 interview. Many reminders were sent even before receiving the invite via email. There were too many reminder calls for joining on time. The interview was an online Teams virtual call. Showing a government ID card was mandatory.

Protocol differences in Objective-C and Swift

Protocol syntax Protocols and extensions Optionals in iOS, Objective-C, and Swift

Structs and extended methods Swift vs. Objective-C

Calling class functions or extension functions

Classes vs. structs Struct initialization

When a struct is initialized without an init method, how is an object created?

What are associated types with respect to protocols in Swift?

Protocols: extensions, inheritance, associated types

Polymorphism with an example