Blue Yonder Interview Questions, Process, and Tips

Q1. Program to find the largest and smallest integer in a program
Ans. 
Program to find the largest and smallest integer in a program
• Iterate through the array of integers to find the largest and smallest values

• Initialize variables to store the largest and smallest values, update them as needed

• Handle edge cases like empty array or array with only one element

• Return the largest and smallest values found
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Q2. Explain internal working of HashMap, what is abstract class
Ans. 
HashMap is a data structure that stores key-value pairs using hashing. An abstract class is a class that cannot be instantiated.
• HashMap uses hashing to store key-value pairs for efficient retrieval.

• Abstract classes cannot be instantiated and can have abstract methods that must be implemented by subclasses.

• Example: HashMap map = new HashMap<>();
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Q1. Which list you will prefer using if you want to create an application that needs constant modification, ArrayList or LinkedList
Ans. 
LinkedList is preferred for constant modification due to faster insertion and deletion times.
• LinkedList is preferred for constant modification because it has faster insertion and deletion times compared to ArrayList.

• LinkedList allows for easy insertion and deletion of elements without the need to shift other elements, making it more efficient for constant modifications.

• ArrayList is better for random access and iteratin...read more
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Q1. I was interviewed for PLSQL based role. So I was asked about joins, constraints, procedure and function difference, view and materialized view
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Q2. Write a sql query to find out 2nd highest salary
Ans. 
SQL query to find 2nd highest salary
• Use the ORDER BY clause to sort salaries in descending order

• Use the LIMIT clause to retrieve the second row
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Q3. Write a function to do factorial
Ans. 
Function to calculate factorial of a number
• Create a function that takes an integer as input

• Use a loop to multiply the number by all integers from 1 to the input number

• Return the final result
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Q4. Asked about regexp functions
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2 coding questions and few other technical questions from os, cn, dsa and so on

They asked me sql, dsa and oops...all of them were basics

Q1. Why this company
Ans. 
I chose this company because of its innovative projects, strong company culture, and opportunities for growth.
• Innovative projects: I am excited about the cutting-edge technologies and projects the company is working on.

• Strong company culture: I value a positive work environment and the company's reputation for fostering a supportive culture is appealing to me.

• Opportunities for growth: I see potential for career advance
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Q2. Are u okay with any location?
Ans. 
Yes, I am open to any location for the position of Associate Software Engineer.
• I am flexible and willing to relocate for the right opportunity.

• I believe in adapting to new environments and challenges.

• I am excited about the prospect of working in different locations to gain diverse experiences.
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Q1. Explain your role in your previous company
Ans. 
I was responsible for analyzing business processes, identifying areas for improvement, and implementing solutions to increase efficiency and profitability.
• Analyzed current business processes to identify inefficiencies

• Developed and implemented strategies to improve efficiency and profitability

• Collaborated with various departments to ensure successful implementation of solutions
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Q1. Why do you want to join our company
Ans. 
I am impressed by your company's reputation for innovation and growth.
• I admire your company's track record of success in implementing cutting-edge solutions.

• I am excited about the opportunity to work with a team of talented professionals.

• I believe that my skills and experience align well with the goals of your company.
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Q1. Core Java Questions
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Q2. Merge Sort
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Q1. Explain about distributed system design
Ans. 
Distributed system design involves breaking down a system into smaller components that communicate and coordinate with each other over a network.
• Decompose the system into smaller services that can run independently

• Use messaging protocols like MQTT or AMQP for communication

• Implement fault tolerance and scalability measures

• Consider data consistency and synchronization across nodes

• Examples: microservices architecture, Apa
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Q2. Make an class with other objects as immutable
Ans. 
Create a class with other objects as immutable
• Use final keyword to make class immutable

• Make all fields private and final

• Do not provide setter methods, only getter methods

• If class contains mutable objects, make sure to return a copy of them in getter methods
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