TCS Data Analyst Interview Questions, Process, and Tips for Freshers

Q1. Difference between Power BI Tableau, advantages and limitations of both
Ans. 
Power BI and Tableau are both popular data visualization tools, each with its own advantages and limitations.
• Power BI is more user-friendly and integrates well with Microsoft products, while Tableau offers more advanced visualization options.

• Power BI is better suited for business users who are already using Microsoft products, while Tableau is preferred by data analysts and data scientists.

• Power BI is more cost-effecti...read more
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Q2. What is RLS in Power BI
Ans. 
RLS in Power BI stands for Row-Level Security, which allows users to restrict access to certain rows of data based on their role or permissions.
• RLS helps in controlling access to data at the row level

• It allows users to define security roles and rules to restrict data access

• Users can create filters based on roles to limit data visibility

• For example, a manager can only see data related to their department using RLS
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Q3. How do you share the report with users
Ans. 
I share reports with users through email, online portals, presentations, and interactive dashboards.
• Send reports via email attachments

• Upload reports to online portals for easy access

• Present findings in meetings or webinars

• Create interactive dashboards for users to explore data

• Provide access to reports through secure data sharing platforms
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Q4. How do you optimize the report when working with large datasets
Ans. 
Optimizing reports with large datasets involves using efficient data processing techniques and visualization tools.
• Use data aggregation to summarize large datasets

• Utilize indexing and proper data structures for faster retrieval

• Implement parallel processing or distributed computing for quicker analysis

• Leverage data visualization tools like Tableau or Power BI for easier interpretation

• Consider using sampling techniques t
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2 hr coding test and asking about the my project

Q1. Why want to join tcs?
Ans. 
I want to join TCS because of its reputation for innovation, global presence, and opportunities for career growth.
• TCS is known for its cutting-edge technology solutions and innovation in the IT industry

• TCS has a strong global presence with offices in multiple countries, providing opportunities for international exposure

• TCS offers a wide range of projects and clients, allowing for diverse learning experiences and career...read more
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Q2. What is long term goal
Ans. 
My long term goal is to become a data science manager and lead a team of analysts to drive impactful business decisions through data-driven insights.
• Continue developing technical skills in data analysis and machine learning

• Gain leadership experience through project management and team collaboration

• Obtain advanced degrees or certifications in data science or related fields

• Work towards becoming a subject matter expert in
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A measure of your ability to learn or performed a required task

Q1. Self introduction
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Q2. Job role details
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Q3. Salary details ,feedback
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Q4. That's it ...no
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Q5. No questions...
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General Aptitude Questions and maths and reasoning

Q1. General Questions about your skillset
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Q1. General Introduction about yourself
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