Blue Yonder Node JS Developer Interview Questions and Answers

Q1. Basic DSA questions like binary search, pattern
Add your answer
Q2. Basic SQL query questions
Add your answer

Q1. Just go through basic core java questions, spring boot questions.
Add your answer
Q2. 1. Oops concept, Exception Handling, Singleton class
Add your answer

Q1. 1. Find number of times a string occurs in second string. Practice more on string coding interview questions. 2. Sql:find employee who has second highest salary.
Ans. 
Count occurrences of a string in another string and find second highest salary in SQL.
• Use a loop to iterate through the second string and check for occurrences of the first string.

• Use a counter variable to keep track of the number of occurrences found.

• In SQL, use a subquery to find the employee with the second highest salary by ordering the salaries in descending order and selecting the second row.
Answered by AI
Add your answer

Q1. Discussed about roles and responsibilities. Greatest challenge that has faced in job role. Puzzle:u have 3l 5l container,how do u measure 4l using only two given containers
Add your answer

Java Coding Questions based on ArrayList, HashMap, etc.

Count distinct elements in given String.

Q1. Current Project architecture.
Ans. 
Our current project architecture follows a microservices design pattern with separate services for different functionalities.
• Microservices architecture with separate services for different functionalities

• Use of RESTful APIs for communication between services

• Containerization using Docker for easy deployment and scalability

• Implementation of service discovery and load balancing with tools like Kubernetes

• Use of message bro
Answered by AI
Add your answer
Q2. My role in project
Ans. 
My role in the project was to develop and maintain Java applications to meet the project requirements.
• Developing Java applications based on project requirements

• Maintaining and updating existing Java code

• Collaborating with team members to ensure project success
Answered by AI
Add your answer

Round 1 was of aptitude test with two sections overall it was easy but very less time.

Q1. Core java and advance java , project what u have done and puzzles
Add your answer

Q1. Core java basics
Add your answer
Q2. Collections framework
Add your answer

Asked about introduction and then few coding questions

Q1. Given a code, what will be the output of this?
Ans. 
The output of the code will be the sum of the elements in the given array.
• The code likely involves iterating through the array and adding up the elements.

• Make sure to handle edge cases like empty arrays or arrays with negative numbers.

• Example: If the array is [1, 2, 3], the output will be 6.
Answered by AI
Add your answer
Q2. What is a hashMap and difference between HashMap and concurrentHashMap
Ans. 
HashMap is a data structure in Java that stores key-value pairs. ConcurrentHashMap is a thread-safe version of HashMap.
• HashMap is not thread-safe, while ConcurrentHashMap is thread-safe.

• ConcurrentHashMap allows concurrent read and write operations without the need for external synchronization.

• HashMap allows null keys and values, while ConcurrentHashMap does not allow null keys or values.
Answered by AI
Add your answer

BST formation code in java

Q1. Multi Threading consumer producer
Add your answer
Q2. User Defined Exceptions
Add your answer

Q1. Scenario based question
Add your answer
Q2. Work Life Balance
Add your answer