Veol Medical Technologies Interview Questions and Answers

Q1. Tableau difference between blend &join
Ans. 
Blend combines data from different data sources in a single view, while join combines data from the same data source.
• Blend is used when data comes from different data sources, join is used when data comes from the same data source

• Blend creates a relationship between data sources without actually merging the data, join merges the data based on a common field

• Blend can be used to combine data from different databases like...read more
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Q1. SQL-related questions working of self join and what will be used in case of 2nd max
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Q1. Basic details as to why looking for a change
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Q1. Intermediate questions for tableau, SQL
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Q1. Managerial interview
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Q1. Salary negotiation
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Q1. Previous company key responsibilities
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Simple math anyone can solve it

Q1. Project details
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Q2. Hobbies were asked and asked to show proof
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Q3. Face to face interview with HR questions
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Q1. Installation and upgradation steps
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Q2. Patching and performance tuning
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Q1. Table space is full what action need to take
Ans. 
Free up space by deleting unnecessary data or increasing table space size.
• Identify which table space is full

• Check if there are any unnecessary data that can be deleted

• Increase the size of the table space if necessary

• Consider partitioning the table to distribute data across multiple table spaces
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Q2. Datafile addition to tablespace
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Adding a datafile to a tablespace
• Use ALTER TABLESPACE statement to add datafile

• Ensure enough disk space is available

• Monitor tablespace usage regularly

• Example: ALTER TABLESPACE users ADD DATAFILE '/u01/app/oracle/oradata/db1/users02.dbf' SIZE 50M;
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Q3. How to add datafile to tablespace
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To add a datafile to a tablespace:
• Identify the tablespace where the datafile needs to be added

• Create a new datafile using the 'CREATE DATAFILE' command

• Add the new datafile to the tablespace using the 'ALTER TABLESPACE' command

• Ensure that the new datafile is of the correct size and location
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Report writing- you have to present a market research overview on any of industry you can visit on their website for same

Q1. Analyse market trends
Ans. 
Market trends can be analyzed by examining consumer behavior, industry reports, and economic indicators.
• Examine consumer behavior through surveys and focus groups

• Review industry reports and forecasts for insights

• Monitor economic indicators such as GDP growth and inflation rates

• Look for emerging technologies or innovations that could impact the market

• Consider geopolitical events or regulatory changes that may influence
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Q2. Guest estimate for any industry
Ans. 
Guest estimate for any industry refers to the practice of predicting the number of guests or customers a business may expect to receive within a certain period of time.
• Consider historical data and trends to make an educated guess

• Take into account external factors such as seasonality, holidays, and economic conditions

• Utilize forecasting models or software to help with the estimation process
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Q1. Tell me about tableau architecture
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Tableau architecture is a visual analytics platform that helps users to understand data through interactive visualizations.
• Tableau consists of three main components: Data Connection, Data Engine, and VizQL Server.

• Data Connection allows users to connect to various data sources such as databases, spreadsheets, and cloud services.

• Data Engine processes and optimizes data queries for faster performance.

• VizQL Server translat...read more
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