Krsnaa Diagnostics Data Entry Operator Interview Questions and Answers

Q1. How do you do pruning
Ans. 
Pruning is a technique used in machine learning to reduce the size of decision trees by removing unnecessary branches.
• Pruning helps prevent overfitting by simplifying the model

• There are two main types of pruning: pre-pruning and post-pruning

• Pre-pruning involves setting a limit on the depth of the tree or the number of leaf nodes

• Post-pruning involves removing branches that do not improve the overall accuracy of the tree

• ...read more
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Q1. Tell me about yourself.
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Q2. Why you want to change the company
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Q3. What's your expected ctc
Ans. 
I expect a competitive salary based on my qualifications, experience, and the responsibilities of the Assistant Manager role.
• I am looking for a salary that reflects my skills and experience in the industry.

• I have researched the average salary range for Assistant Managers in this field.

• I am open to negotiation and would like to discuss the compensation package in detail during the interview.

• I am confident that my value ...read more
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Power bi assignment was given to solve

Q1. Optimization techniques in sql
Ans. 
Optimization techniques in SQL involve using indexes, query optimization, and proper database design.
• Use indexes on columns frequently used in WHERE clauses to speed up query performance

• Avoid using SELECT * and instead specify only the columns needed in the query

• Optimize queries by using appropriate join types and conditions

• Normalize database tables to reduce redundancy and improve query efficiency
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Q2. Sub queries in sql
Ans. 
Sub queries in SQL are queries nested within another query to retrieve data based on the result of the outer query.
• Sub queries can be used in SELECT, INSERT, UPDATE, and DELETE statements.

• They can be used to filter results, retrieve data from multiple tables, or perform calculations.

• Example: SELECT * FROM table1 WHERE column1 = (SELECT column2 FROM table2 WHERE condition);
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Q3. Types of Join in sql
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Types of joins in SQL include inner join, left join, right join, and full outer join.
• Inner join: Returns rows when there is a 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 all rows when there is a match in either table
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Q4. Time intelligence functions in power bi
Ans. 
Time intelligence functions in Power BI are used to analyze and compare data based on time periods.
• Time intelligence functions help in calculating year-to-date, month-to-date, and other time-based calculations.

• Functions like TOTALYTD, SAMEPERIODLASTYEAR, and PARALLELPERIOD are commonly used for time intelligence in Power BI.

• These functions allow for easy comparison of data across different time periods and help in tren
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Q5. Logical questions in aptitude
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Q6. Row level security in power bi
Ans. 
Row level security in Power BI allows users to restrict access to specific rows of data based on their role or criteria.
• Row level security can be implemented by creating roles in Power BI and defining rules to filter data based on user roles.

• Users can be assigned to specific roles which determine the data they have access to.

• Row level security helps in ensuring data privacy and compliance with regulations.

• For example, ...read more
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Q1. Tell about yourself
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Q2. What you have been doing in the current organisation
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Q3. Turnover of the company
Ans. 
The turnover of the company refers to the total revenue generated by the company in a specific period of time.
• Turnover can be calculated by multiplying the number of units sold by the selling price of each unit.

• It is an important financial metric that indicates the company's performance and growth.

• Higher turnover generally indicates better financial health and efficiency.

• Example: Company X had a turnover of $1 million ...read more
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Q1. How confident are you to take up new job roles
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Q2. You don't have the experience of certain things, how will you tackle them.
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Q1. Where do you stay, with whom
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Q2. Plans to shift and why do you want to join the organisation
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Q1. Salary take home, expectations
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Q2. Your present job role and salary slip
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Coding test to screen developer skills

Arithmetic,data interpretation, verbal ability, verbal test, logical

Comprehensive technique to judge the suitability of an individual and his appropriateness for admission & scholarship

A job type of work that you are given to do

Q1. What are your salary expectations?
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Q2. Why are you looking for a change?
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Q3. Tell me about yourself.
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