InfoObjects Interview Questions, Process, and Tips

Q1. Dsa linklist tree basic
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Q2. React deep string SQL
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Worldcup discussion

Roman to int , valid parentheses

Basic aptitude questions

Q1. Strength weakness why do you join etc
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Q1. Are Strings in Java immutable?
Ans. 
Yes, Strings in Java are immutable.
• Strings in Java cannot be changed once they are created.

• Any operation that appears to modify a String actually creates a new String object.

• Example: String str = "Hello"; str.concat(" World"); // str still remains "Hello"
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Aptitude test was easy . It is all formula based

It was a pen-paper coding test in which we had to solve 2 questions out of 3 to enter into the next round.

It is a non-elimination round and the performance of both the coding and gd will take you forward to the technical round.

Q1. I was asked to introduce myself.
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Q2. Project details in depth were asked.
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Q3. Dbms concepts were asked like joins etc.
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Q1. Difference between repartition and coalesc?
Ans. 
Repartition increases the number of partitions in a DataFrame, while coalesce reduces the number of partitions.
• Repartition involves shuffling data across the network and can be used to increase the parallelism of operations.

• Coalesce minimizes data movement by only creating new partitions if necessary.

• Repartition is typically used when there is a need for more parallelism, while coalesce is used to reduce the number of ...read more
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Q2. About my project
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Q1. SQL question based on joins, aggregation
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Q2. Write SQL query for getting highest employee salary
Ans. 
SQL query to retrieve the highest employee salary
• Use the SELECT statement to retrieve the maximum salary from the employee table

• Use the MAX() function to find the highest salary value

• Combine the MAX() function with the SELECT statement to get the desired result
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