LTM Limited interview question

can abstract class contain static method? types on constructor? dataset vs datareader? dataadapter? view encapsulation? babel? magic tables? interfaces in angular? can unique key be used as foriegn key? circuit breaker in webapi? put and patch ? throttling in webapi? improve the angular application performance? error handling in angular? await and configawait in webapi? authrntication of api other that jwt ?