ATC India Tower Corporation Data Processing Analyst Interview Questions and Answers

Q1. Tell me about yourself?
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Q2. Explain your role in your current project and how you handled your customer in problematic situation?
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Q1. What is your roles and responsibilities ?
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As a Business Analyst, I bridge the gap between stakeholders and IT, ensuring project requirements are met effectively.
• Gather and analyze business requirements from stakeholders, e.g., conducting interviews and workshops.

• Create detailed documentation, such as business requirement documents (BRDs) and functional specifications.

• Facilitate communication between technical teams and business units to ensure alignment on pro...read more
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Q2. How do you manage stakeholders ?
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Effective stakeholder management involves communication, understanding needs, and building relationships for project success.
• Identify stakeholders: Map out all stakeholders involved in the project, such as clients, team members, and executives.

• Understand their needs: Conduct interviews or surveys to gather insights on their expectations and concerns.

• Regular communication: Schedule regular updates through meetings or re...read more
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Q3. What is your techniques for requirement gathering?
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Effective requirement gathering involves various techniques to ensure comprehensive understanding of stakeholder needs.
• Interviews: Conduct one-on-one sessions with stakeholders to gather detailed insights. For example, interviewing doctors to understand patient management systems.

• Surveys and Questionnaires: Distribute structured forms to collect quantitative data from a larger audience. For instance, using surveys to a...read more
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There was a question which say, write the string in the reverse order.

Q1. What are your strengths and weakness.
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My strengths include strong analytical skills and attention to detail. My weakness is that I can be overly critical of my own work.
• Strength: Strong analytical skills

• Strength: Attention to detail

• Weakness: Overly critical of my own work
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Q2. Tell me about yourself
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I am a data analyst with experience in analyzing and interpreting complex data sets to drive business insights.
• Proficient in SQL, Python, and Excel for data analysis

• Skilled in data visualization using Tableau and Power BI

• Experience in conducting statistical analysis and creating predictive models

• Strong problem-solving and critical thinking skills

• Effective communication and presentation skills

• Ability to work collaborati
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Q1. Domain specific questions checking your industry knowledge
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Q2. Scenario based questions
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Q1. Questions about your past experience
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Q2. Life cycle of project
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Project life cycle refers to the stages a project goes through from initiation to completion.
• Initiation: Define project scope, objectives, and stakeholders.

• Planning: Create a detailed project plan, schedule, and budget.

• Execution: Implement the project plan and manage resources.

• Monitoring and Controlling: Track progress, identify issues, and make necessary adjustments.

• Closing: Finalize project deliverables, obtain clien...read more
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Python and SQL coding test along with basic data science questions
Python was on basic syntax. SQL was on medium difficulty

Q1. Correlation vs causation Central limit theorem Support Vector Machines Confusion matrix Basics of Deep Learning - activation function, optimizers and initialisation techniques Z score, P value Differenc...read more
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Q1. Questions about my background My hobbies and interests
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Q1. Basic questions about previous experience.
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Q1. SQL questions Basic
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Q2. SQL questions advanced
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Based on your job description coding questions will be asked in different categories. If you are able to manage time. It is easy to crack

Q1. Optimization techniques in pyspark
Ans. 
Optimization techniques in pyspark involve partitioning, caching, and using efficient transformations.
• Partitioning data to distribute workload evenly

• Caching frequently accessed data to avoid recomputation

• Using efficient transformations like map, filter, and reduce

• Avoiding unnecessary shuffling of data
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Q2. Few coding questions. Find the first unique character in string
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Q1. It is bit difficult for me. Mention your work experience
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