RadiSys Software Engineer Interview Questions and Answers for Freshers

Online aptitude test was there it was easy basics of logic and maths were asked

Group discussion was a bit hard the topic was advantages and disadvantages of ai in decision making

Q1. Who program to print from 100 to 1
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Q2. Explain java oops concept
Ans. 
Java OOPs concept is a programming paradigm that focuses on objects and their interactions.
• OOPs stands for Object-Oriented Programming System

• It is based on the concepts of classes and objects

• Encapsulation, Inheritance, Polymorphism, and Abstraction are the four main pillars of OOPs

• Java supports all the OOPs concepts

• Example: A class 'Car' can have properties like 'color', 'model', and 'year' and methods like 'start', 's...read more
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Q1. Related the Language which you mentioned in Resume
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Q2. Technical questions related to Domain
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Q1. Coding related Questions
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Q1. Question related to resource
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First round was aptitude test which include both aptitude (cognitive, logical reasoning,verbal) questions and technical questions related to java advanced java sql and Linux.

Q1. Based on your resume they ask c++, java and sql Linux questions
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Q1. Tell me about yourself and about project
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Q2. Program writing Oops concepts Some SQL queries Logical questions
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Q1. Tell me about yourself Where you would find yourself in 5 years Your strength and weakness About the company They negotiate about our job role Company bond probation period
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Q1. Merge two linked list..
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Q2. Program for selection sort
Ans. 
Selection sort is a simple sorting algorithm that repeatedly selects the minimum element from an unsorted portion of the array and swaps it with the first element.
• Iterate through the array and find the minimum element

• Swap the minimum element with the first element

• Repeat the process for the remaining unsorted portion of the array
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Q3. What is critical section
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A critical section is a part of a program where shared resources are accessed and must be protected from concurrent access.
• Critical sections are used to prevent race conditions and ensure data integrity.

• They are typically protected using locks or other synchronization mechanisms.

• Only one thread can execute the critical section at a time.

• Examples include accessing a shared database, updating a global variable, or modify...read more
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Q1. Questions about project in depth
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Q1. Where do you see yourself in 5 years
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Q1. Java basics and fundamental
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Q1. Difference between hashmap and hashset
Ans. 
HashMap is a key-value pair collection while HashSet is a collection of unique elements.
• HashMap stores key-value pairs while HashSet stores unique elements

• HashMap allows duplicate values but keys must be unique, HashSet does not allow duplicates

• HashMap uses keys to retrieve values, HashSet does not have keys
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Q2. Tell me about yourself
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Q3. Write a program to find a duplicate in two list (Take two list and wirte a program to print the same elementsin both list in note pad)
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Q1. What is lookup annotation in springboot

Ans. 

Lookup annotation in Spring Boot is used to indicate that a method should be cached for faster retrieval.

• Lookup annotation is used in conjunction with @Cacheable annotation to cache the result of a method.

• It is commonly used in Spring Boot applications to improve performance by caching frequently accessed data.

• Example: @Lookup @Cacheable("books") public List findAllBooks() { return bookRepository.findAll(); }

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