Service Design interview questions
Dependency Injection, DTO Mapping, Integration Client Shape, Repository Boundaries, Service Layer
125 questions with answers and explanations · 115 flashcards
Questions (page 3 of 3)
- A senior interviewer asks for one tradeoff behind integration client shape. What is the strongest follow-up?Multiple choiceHard
- What kind of contract clarity matters most for integration client shape?Multiple choiceHard
- What production risk should you worry about most if dto mapping is handled lazily?Multiple choiceHard
- Another engineer will maintain this code later. What choice helps the most around dependency injection?Multiple choiceMedium
- What production risk should you worry about most if integration client shape is handled lazily?Multiple choiceHard
- You cannot rewrite everything today. What is the best incremental improvement around integration client shape?Multiple choiceHard
- You cannot rewrite everything today. What is the best incremental improvement around service layer?Multiple choiceMedium
- Which judgment is strongest when choosing a data shape for service layer?Multiple choiceMedium
- Which option is the safer default when shipping code around service layer?Multiple choiceHard
- A senior interviewer asks for one tradeoff behind dto mapping. What is the strongest follow-up?Multiple choiceHard
- Which move is the best default when integration client shape becomes part of this workflow?Multiple choiceHard
- You cannot rewrite everything today. What is the best incremental improvement around repository boundaries?Multiple choiceHard
- Another engineer will maintain this code later. What choice helps the most around integration client shape?Multiple choiceHard
- Which explanation would best help the team align on service layer?Multiple choiceMedium
- A teammate submits shaky dependency injection code. Which review comment is the strongest?Multiple choiceMedium
- What assumption should be made explicit when working with integration client shape?Multiple choiceHard
- What do interviewers usually hear as a strong signal when you discuss dependency injection well?Multiple choiceHard
- If integration client shape fails in production, what handling philosophy is strongest?Multiple choiceHard
- Which explanation would best help the team align on repository boundaries?Multiple choiceHard
- A bug appears around dependency injection. What is the strongest first debugging move?Multiple choiceMedium
- A bug appears around dto mapping. What is the strongest first debugging move?Multiple choiceHard
- Which explanation would sound strongest in an interview when discussing dependency injection?Multiple choiceMedium
- What does a strong engineer do when reasoning through service layer code?Multiple choiceMedium
- If you wrote a test around service layer, what should the test prove first?Multiple choiceMedium
- What does a strong engineer do when reasoning through dependency injection code?Multiple choiceMedium