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Mean Stack Developer Interview Questions

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228 mean stack developer interview questions shared by candidates

Tell me about yourself. Angular Interview Questions: Have you worked on test cases or unit testing? What is code coverage? What information can you get from code coverage, and what is your score? What are access modifiers? What are lifecycle methods in Angular? Can you explain a scenario-based question in Angular? Example: How would you manage state or handle component communication in a large Angular application? Node.js Interview Questions: How does Node.js work internally? Describe the event-driven, non-blocking I/O model of Node.js, including the role of the event loop. Database Interview Questions: What is ORM (Object Relational Mapping)? What is the difference between a simple SQL query and one written using ORM features? Miscellaneous Questions: What are ACID transactions? What are the SOLID principles? Explain the five principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. Basic DSA Questions: How would you find the indices of a given target value in an array? How would you reverse a string in your preferred programming language?
avatar

Full/Mean Stack Developer

Interviewed at Biz2X

4★
Jan 8, 2025

Tell me about yourself. Angular Interview Questions: Have you worked on test cases or unit testing? What is code coverage? What information can you get from code coverage, and what is your score? What are access modifiers? What are lifecycle methods in Angular? Can you explain a scenario-based question in Angular? Example: How would you manage state or handle component communication in a large Angular application? Node.js Interview Questions: How does Node.js work internally? Describe the event-driven, non-blocking I/O model of Node.js, including the role of the event loop. Database Interview Questions: What is ORM (Object Relational Mapping)? What is the difference between a simple SQL query and one written using ORM features? Miscellaneous Questions: What are ACID transactions? What are the SOLID principles? Explain the five principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. Basic DSA Questions: How would you find the indices of a given target value in an array? How would you reverse a string in your preferred programming language?

Angular Interview Questions: Tell me about yourself. Have you worked on test cases or unit testing? What is code coverage? What information can you get from code coverage, and what is your score? What are access modifiers? What are lifecycle methods in Angular? Can you explain a scenario-based question in Angular? Example: How would you manage state or handle component communication in a large Angular application? Node.js Interview Questions: How does Node.js work internally? Describe the event-driven, non-blocking I/O model of Node.js, including the role of the event loop. Database Interview Questions: What is ORM (Object Relational Mapping)? What is the difference between a simple SQL query and one written using ORM features? Miscellaneous Questions: What are ACID transactions? What are the SOLID principles? Explain the five principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. Basic DSA Questions: How would you find the indices of a given target value in an array? How would you reverse a string in your preferred programming language?
avatar

MEan Stack Developer

Interviewed at Biz2X

4★
Jan 8, 2025

Angular Interview Questions: Tell me about yourself. Have you worked on test cases or unit testing? What is code coverage? What information can you get from code coverage, and what is your score? What are access modifiers? What are lifecycle methods in Angular? Can you explain a scenario-based question in Angular? Example: How would you manage state or handle component communication in a large Angular application? Node.js Interview Questions: How does Node.js work internally? Describe the event-driven, non-blocking I/O model of Node.js, including the role of the event loop. Database Interview Questions: What is ORM (Object Relational Mapping)? What is the difference between a simple SQL query and one written using ORM features? Miscellaneous Questions: What are ACID transactions? What are the SOLID principles? Explain the five principles: Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion. Basic DSA Questions: How would you find the indices of a given target value in an array? How would you reverse a string in your preferred programming language?

- Can you give an example where automation failed to catch a critical bug and how you handled it? - How do you decide what to automate and what not to? - What metrics do you use to measure the success of your QA process? - How do you ensure that your tests remain relevant and up-to-date when the requirements keep changing?
avatar

MEan Stack Developer

Interviewed at PixelQue software

4.2★
May 27, 2025

- Can you give an example where automation failed to catch a critical bug and how you handled it? - How do you decide what to automate and what not to? - What metrics do you use to measure the success of your QA process? - How do you ensure that your tests remain relevant and up-to-date when the requirements keep changing?

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