Flexsin Technologies Trainee Interview Questions and Answers

Test of SQL, Tableau and other skills based on your resume on Skillate

Q1. SQL and other skills technical questions
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Q1. Manager round / 2nd technical round
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Q1. Sql is the most important , Focus on Joins ,Sub query and Sql basics
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Q2. Joining tables with different joins
Ans. 
Joining tables with different joins in SQL
• Use INNER JOIN to return rows when there is at least one match in both tables

• Use LEFT JOIN to return all rows from the left table and the matched rows from the right table

• Use RIGHT JOIN to return all rows from the right table and the matched rows from the left table

• Use FULL JOIN to return rows when there is a match in one of the tables
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Q1. Oops concepts, core java
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Q2. Java 8 stream api and lambda
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Q1. Difference between comparable and comparator
Ans. 
Comparable is an interface used for natural ordering while Comparator is an interface used for custom ordering.
• Comparable is implemented by the class whose objects need to be sorted

• Comparator is implemented separately and passed as an argument to sorting method

• Comparable uses compareTo() method for comparison while Comparator uses compare() method

• Comparable provides only one way of sorting while Comparator provides mul...read more
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Q1. Internal working of hashmap
Ans. 
HashMap is a data structure that stores key-value pairs and uses hashing to retrieve values quickly.
• HashMap uses an array of buckets to store key-value pairs

• Each bucket contains a linked list of entries

• Hashing is used to determine the index of the bucket where the entry should be stored

• If two keys have the same hashcode, they are stored in the same bucket as a linked list

• HashMap allows null keys and values

• HashMap is no...read more
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Q1. What is your expectation about salary
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Q1. Introduction about your self
Ans. 
Experienced project engineer with a background in civil engineering and a proven track record of successfully managing large-scale construction projects.
• Bachelor's degree in Civil Engineering from XYZ University

• 5+ years of experience in project management

• Proficient in AutoCAD and project management software

• Led a team of engineers to successfully complete a $10 million construction project on time and within budget
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Q2. About Work which you are doing currently
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Q3. I am Domain Engg (SFSD)
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