John Snow Interview Questions and Answers

Q1. Nothing there have questions
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Q2. Discuss about my previous work
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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
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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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Q1. Tell me a time when you failed
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Q1. Walk me through three financial statements
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The three financial statements are the income statement, balance sheet, and cash flow statement.
• Income statement shows a company's revenues and expenses over a specific period of time.

• Balance sheet provides a snapshot of a company's financial position at a specific point in time.

• Cash flow statement shows how changes in balance sheet and income affect cash and cash equivalents.
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Q1. Your future goals and ambitions,
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Q2. Five year goals, Strengths, weakness, why apollo,
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Health safety, leadership, research project,

Neurosurgery cases emergency elective operations,

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
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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
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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
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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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