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3M Full Stack Developer Interview Questions and Answers
3M Full Stack Developer Interview Experiences
1 interview found
I applied via Recruitment Consulltant and was interviewed in Dec 2024. There was 1 interview round.
(2 Questions)
- Q1. Top frequent element
- Q2. SQL query to remove duplicates
- Ans.
Use SELECT DISTINCT to remove duplicates from a table in SQL.
Use SELECT DISTINCT to retrieve unique rows from a table.
For example, SELECT DISTINCT column_name FROM table_name;
Another way is to use GROUP BY with aggregate functions to remove duplicates.
For example, SELECT column_name, COUNT(*) FROM table_name GROUP BY column_name;
Interview questions from similar companies
Sachin Kumawat
Selected
Basic aptitude questions.
(1 Question)
- Q1. Puzzles, Linked list
(1 Question)
- Q1. Hobbies, Family background
Selected
Coding, Maths, Reasoning etc
(1 Question)
- Q1. Technical questions related to programming languages.
(1 Question)
- Q1. Environment and salary etc
Selected
I appeared for an interview before Feb 2024.
The authentication related questions and architecture wise too.
Interview Preparation Tips
VIGNESHWARAN V
(3 Questions)
- Q1. Basic family and behaviour
- Q2. How is your strength?
- Q3. What is family background?
(1 Question)
- Q1. Mostly about .Net, AWS, Angular
(1 Question)
- Q1. Mostly about AWS, .Net
(1 Question)
- Q1. Behavioral Round + Salary Discussion
Senior Software Developer Interview Questions & Answers
Secure Meters
Anonymous
posted on 10 Oct 2021
I applied via Naukri.com and was interviewed before Oct 2020. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Normal Questions
- Ans. Be confidant and try to answer each, also accept if you are not able to answer any question and let panel in confidence that if you have chance you can do it.
Interview Preparation Tips
Junior Software Developer Interview Questions & Answers
Wistron
Shravya Poojary
posted on 3 Jun 2024
I applied via Approached by Company and was interviewed in May 2024. There were 2 interview rounds.
It was 3 rounds of aptitude test. They give us back to back test.
(1 Question)
- Q1. About personal details
(2 Questions)
- Q1. Explain runtime polymorphism used in your project
- Ans.
Runtime polymorphism in Java allows a subclass to provide a specific implementation of a method that is already provided by its superclass.
Runtime polymorphism is achieved through method overriding, where a subclass provides its own implementation of a method that is already defined in its superclass.
The method to be overridden must have the same name, return type, and parameters in both the superclass and subclass.
At ...
- Q2. How do you do authentication and authorisation in your java spring boot app
- Ans.
Authentication and authorization in a Java Spring Boot app involves using Spring Security for managing user access.
Use Spring Security to handle authentication and authorization
Configure security settings in the application.properties file
Implement custom authentication providers if needed
Use annotations like @PreAuthorize and @Secured for method-level security
Skills evaluated in this interview
Selected
I applied via Job Portal and was interviewed before Jun 2023. There were 2 interview rounds.
Quite reasonable and moderate level
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