NTT Data Data Analytics Analyst Interview Questions and Answers

Q1. What is DNS, HTTP/s, TLS, SSL?
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Q2. What is the latest for HTML, CSS, and JS?
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Q1. What are the latest features in ES10?
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Q2. What is the difference between async and promises?
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Q3. Why everything is a object in JavaScript
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Aptitude has general maths, English and Finance questions very easy and it was a online aptitude test.

Q1. Derivatives, Types of derivatives
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Q2. What is indices
Ans. 
Indices are statistical measures used to track the performance of a specific group of assets or market.
• Indices are used to provide a snapshot of the overall market or a specific sector.

• They are often used as benchmarks for investment performance.

• Examples include the S&P 500, Dow Jones Industrial Average, and NASDAQ Composite.
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Q3. What is capital budgeting
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Capital budgeting is the process of planning and managing a firm's long-term investments.
• Involves evaluating potential investments and deciding which ones to pursue

• Considers factors such as cash flows, risks, and returns

• Helps in determining the best allocation of resources for maximum profitability

• Examples include building a new factory, purchasing equipment, or launching a new product
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Q4. About financial instruments
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Q5. Tell me about yourself
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I am a dedicated and detail-oriented analyst with a strong background in data analysis and problem-solving.
• I have a Bachelor's degree in Statistics and have completed multiple data analysis projects during my studies.

• I am proficient in using statistical software such as R and Python for data analysis.

• I have experience in conducting market research and creating reports to help businesses make informed decisions.
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It comprised of 3 sections
1st section
MCQ round:DSA(bitwise operators), DBMS, Networking.
2nd Section
Essay writing (200 words)
3rd Section
Gaming based cognitive ability test.

Then qualified students had to give SVAR test.

Q1. Can you describe your major project
Ans. 
Developed a data analysis tool to track customer behavior and improve marketing strategies.
• Utilized Python and SQL to extract and analyze customer data

• Implemented machine learning algorithms to predict customer preferences

• Collaborated with marketing team to implement targeted campaigns based on analysis

• Generated reports and visualizations to present findings to stakeholders
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Q2. Explain the concept of inheritance along with other basic Object-Oriented Programming (OOP) concepts?
Ans. 
Inheritance is a concept in OOP where a class can inherit attributes and methods from another class.
• Inheritance allows for code reusability and promotes the concept of 'is-a' relationship.

• A subclass can inherit from a superclass, gaining access to its attributes and methods.

• Example: Class 'Animal' can be a superclass, and classes like 'Dog' and 'Cat' can inherit from it.
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The test level is moderate

Q1. Difference between c and java
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Q2. Excel shortcuts
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Q1. Can you provide a self-introduction?
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Q1. Tell me about yourself self?
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Q2. What are the leadership qualities?
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Q1. Self introduction and other details
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Q2. Experience on accounts
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Cloud computing and it’s important on global market

Basic Excel and reasoning questions.

Q1. Sql, tableau & excel related questions
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Q1. Salary discussion
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Questions was related to python only

Q1. The 2nd round was for 15 min my interview was at 11 but interviewer didn't came i was waiting for 2-3 hrs then i leave meeting and after that i got mail that i am having interview at 5 pm then again i join...read more
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Q2. What is garbage collector in java?
Ans. 
Garbage collector in Java is a program that automatically manages memory by reclaiming unused memory.
• Garbage collector is a part of Java Virtual Machine (JVM) responsible for automatic memory management.

• It identifies and deletes objects that are no longer reachable or needed by the program.

• Garbage collection helps prevent memory leaks and improves performance by freeing up memory for new objects.

• Examples of garbage col...read more
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Q3. What is inheritance?
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Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
• Allows for code reusability and promotes a hierarchical structure

• Derived class inherits properties and behaviors from a base class

• Can have multiple levels of inheritance

• Example: Class 'Dog' can inherit from class 'Animal' and inherit attributes like 'name' and methods like 'eat()'
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Q4. Difference between sql and non sql database?
Ans. 
SQL databases are relational databases that use structured query language, while NoSQL databases are non-relational and do not use SQL.
• SQL databases are table-based and have a predefined schema, while NoSQL databases are document-based, key-value pairs, graph databases, or wide-column stores.

• SQL databases are good for complex queries and transactions, while NoSQL databases are better for hierarchical data storage.

• Examp...read more
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Q5. What is graphical data?
Ans. 
Graphical data refers to data that is represented visually through graphs, charts, or other visualizations.
• Graphical data helps in easily interpreting trends, patterns, and relationships within the data.

• Common types of graphical data include bar graphs, pie charts, line graphs, and scatter plots.

• It is often used in data analytics to communicate insights and findings effectively to stakeholders.

• Graphical data can be cre...read more
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