Principal Software Interview Questions

10,182 principal software interview questions shared by candidates

Technical: interview with hiring manager about technical stuff. casual talk about your experiences and your resume. and then some fit questions about what do you like and why. then some behavioral questions about how do you handle certain situations. then some questions about a mini study. how do you approach a certain scenario and why and answering some basic questions.
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Associate Principal Data Scientist

Interviewed at Capital One

3.6
Nov 7, 2024

Technical: interview with hiring manager about technical stuff. casual talk about your experiences and your resume. and then some fit questions about what do you like and why. then some behavioral questions about how do you handle certain situations. then some questions about a mini study. how do you approach a certain scenario and why and answering some basic questions.

1. What is the difference between JPA, Hibernate and Spring JDBC 2. What is AWS Lambda and why we need it 3. How much time does AWS Lambda take for running a program (15 min) and what memory size it allows (5MB) 4. Write a Singleton and explain how you can create instance of Singleton from Cloneable 5. How to write Singleton to handle multiple threads 6. What are the features of Java 8 7. What is Global Load balancing 8. Write a Program to remove duplicates from an ArrayList without using a Set 9. What is String pool and why is String Immutable 10. Write answer for this code String s1 = "abc"; String s2 = "abc"; Sysout(s1 == s2); // true, since they both are in String pool Sysout(s1.equals(s2)); // true String s3 = new String("abd"); Sysout(s1==s3) // false Sysout(s1.equals(s3); // true 11. What are the datatypes in Java
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Principal Engineer(Java/Golang)

Interviewed at ConnectWise

3
Oct 26, 2021

1. What is the difference between JPA, Hibernate and Spring JDBC 2. What is AWS Lambda and why we need it 3. How much time does AWS Lambda take for running a program (15 min) and what memory size it allows (5MB) 4. Write a Singleton and explain how you can create instance of Singleton from Cloneable 5. How to write Singleton to handle multiple threads 6. What are the features of Java 8 7. What is Global Load balancing 8. Write a Program to remove duplicates from an ArrayList without using a Set 9. What is String pool and why is String Immutable 10. Write answer for this code String s1 = "abc"; String s2 = "abc"; Sysout(s1 == s2); // true, since they both are in String pool Sysout(s1.equals(s2)); // true String s3 = new String("abd"); Sysout(s1==s3) // false Sysout(s1.equals(s3); // true 11. What are the datatypes in Java

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