Blue Yonder Interview Questions, Process, and Tips

Q1. Write a For loop
Ans. 
A For loop is used to iterate over a collection of items and perform a set of actions for each item.
• Initialize a counter variable before the loop

• Set the condition for the loop to continue based on the counter variable and the length of the array

• Increment the counter variable after each iteration

• Access each element in the array using the counter variable
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Q2. Explains Joins in sql
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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Q1. Explain about Microservices Architecture
Ans. 
Microservices architecture is an architectural style that structures an application as a collection of loosely coupled services.
• Each service is self-contained and can be developed, deployed, and scaled independently.

• Services communicate with each other over lightweight protocols like HTTP or messaging queues.

• Microservices allow for flexibility, scalability, and resilience in large and complex applications.

• Examples of c...read more
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Q2. What is the difference between NoSQL and SQL Database?
Ans. 
NoSQL databases are non-relational databases that do not require a fixed schema, while SQL databases are relational databases that use structured query language.
• NoSQL databases are schema-less, allowing for flexible data models.

• SQL databases use a fixed schema with tables and rows.

• NoSQL databases are horizontally scalable, making them suitable for big data applications.

• SQL databases are vertically scalable, meaning the...read more
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Q3. What are the closures in Javascript?
Ans. 
Closures in JavaScript are functions that have access to their own scope, as well as the scope in which they were defined.
• Closures allow functions to access variables from an outer function even after the outer function has finished executing.

• They are created whenever a function is defined within another function.

• Closures are commonly used to create private variables and functions in JavaScript.
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1.Co ducted through hirepro quiet difficult

Q1. 1.Metge Sort/quick Sort
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Q1. 1.Operating systems 2.Block chain
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Q1. General HR Questions like willing to relocate
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Q2. General HR questions
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Q1. Oops concepts is mandatory
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Q2. Print only duplicate values from a String Without using for loop, use do-while
Ans. 
Print duplicate values from a String using do-while loop
• Create a HashSet to store unique values

• Use a do-while loop to iterate through the String

• Check if the HashSet already contains the current character, if yes, print it as a duplicate
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Q3. Core Java oops concepts
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Q1. Reverse a string= "Ecommerce"
Ans. 
To reverse a string 'Ecommerce', you can iterate through the characters in the string and build a new string in reverse order.
• Iterate through the characters of the string from end to start

• Append each character to a new string to build the reversed string

• Return the reversed string as the result
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Q2. Print only duplicate values from a string
Ans. 
Print duplicate values from a string as an array of strings
• Iterate through each character in the string

• Use a hashmap to store the frequency of each character

• Print characters with frequency greater than 1 as duplicates
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Q3. Selenium web driver related, Open amazon or Facebook website, u need to find the xpath for dates or dropdowns, and using contains
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Q1. System Design, Trees
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Q1. Coding, java, work experiences
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Q1. Work Experience, Agile, Scrum
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Q1. 2 rounds of Salary Negotiation
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