Sunknowledge Services Interview Questions, Process, and Tips

Q1. Where do you see yourself after 1 year?
Ans. Eligible employee to apply IJP here
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Q1. Self Introduction
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Q2. Past Work Experience
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Q3. Salary Details
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Logical Reasoning ,English Comprehension Grammer

Q1. Basic Interpersonal Details
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Q2. Company Business Knowledge
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Q1. Introduce yourself? And last experience
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There are some tricky question around 50 you have to answer it in 45 min

Q1. Asked about myself and my experience in my previous companies and reason for leaving
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Some MCQ questions were given to us

Q1. How to handel the process my previous experience
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Q1. Slalry expectations and what do I seek from the company
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Round duration - 60 minutes
Round difficulty - Easy

Technical Interview round with questions on DBMS, SQL Server etc.

Q1. What are the different types of joins in SQL?
Ans. 
Different types of joins in SQL include inner join, left join, right join, and full outer join.
• Inner join: Returns rows when there is at least one match in both tables.

• Left join: Returns all rows from the left table and the matched rows from the right table.

• Right join: Returns all rows from the right table and the matched rows from the left table.

• Full outer join: Returns rows when there is a match in one of the tables.
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Q2. What are aggregate functions in DBMS?
Ans. 
Aggregate functions in DBMS are functions that operate on a set of values and return a single value as output.
• Aggregate functions perform calculations on multiple rows to return a single result.

• Examples include SUM, AVG, COUNT, MIN, and MAX.

• They are commonly used with the GROUP BY clause in SQL queries.
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Q3. What is the use of the WHERE clause in SQL?
Ans. 
The WHERE clause in SQL is used to filter records based on specified conditions.
• Used to specify a condition while fetching data from a table

• Filters records based on the specified condition

• Can be used with SELECT, UPDATE, DELETE statements

• Examples: SELECT * FROM table_name WHERE column_name = 'value';

• Examples: UPDATE table_name SET column_name = 'new_value' WHERE condition;
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Q4. What is the difference between classification and clustering in the context of database management systems?
Ans. 
Classification assigns predefined categories to data, while clustering groups similar data points together based on their characteristics.
• Classification involves labeling data into predefined classes or categories based on certain criteria.

• Clustering groups data points based on their similarities without predefined categories.

• Classification is supervised learning, while clustering is unsupervised learning.

• Example of cl...read more
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Q5. What is TempDB in MySQL?
Ans. 
TempDB in MySQL is a temporary database used for storing temporary data during query processing.
• TempDB is used for storing temporary tables, intermediate results, and other temporary data.

• It is automatically created by MySQL when needed and is dropped when the server is restarted.

• TempDB helps in optimizing query performance by reducing disk I/O and improving query execution time.
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Q6. What is SSIS?
Ans. 
SSIS stands for SQL Server Integration Services, a platform for building high-performance data integration and workflow solutions.
• SSIS is a component of Microsoft SQL Server used for data integration and workflow applications.

• It allows users to create packages that move data between various sources and destinations.

• SSIS includes tools for data extraction, transformation, and loading (ETL).

• It supports various data forma...read more
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Round duration - 30 minutes
Round difficulty - Easy

HR round with typical behavioral problems.

Q1. Telle something about yourself?
Ans. I describe about myself as well as my experience
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Q2. Tell me something about our company
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