TCS Data Analyst Interview Questions, Process, and Tips

Q1. What is difference between array and list
Ans. 
Arrays have fixed size and homogeneous elements, while lists can dynamically resize and have heterogeneous elements.
• Arrays have a fixed size, while lists can dynamically resize.

• Arrays store elements of the same data type, while lists can store elements of different data types.

• Arrays are accessed by index, while lists are accessed by iterating through elements.
Answered by AI
Add your answer
Q2. Can you describe the experience with data analysis and it's tools
Ans. 
I have extensive experience in data analysis using tools such as Excel, SQL, Python, and Tableau.
• Proficient in Excel for data cleaning, manipulation, and visualization

• Strong SQL skills for querying databases and extracting relevant information

• Experience with Python for statistical analysis and machine learning

• Familiarity with Tableau for creating interactive dashboards and reports
Answered by AI
Add your answer
Q3. Why do we want to hire you
Add your answer

Q1. Skills required technically
Add your answer

Q1. Technical round , hr round
Add your answer
Q2. Skills like technical
Add your answer

General Aptitude Questions and maths and reasoning

Q1. General Questions about your skillset
Add your answer

Q1. General Introduction about yourself
Add your answer

Q1. What is Array ?
Ans. 
An array is a data structure that stores a collection of elements of the same type in a contiguous memory location.
• Arrays have a fixed size determined at the time of declaration.

• Elements in an array can be accessed using their index.

• Arrays can store primitive data types or objects.

• Example: String[] names = {"Alice", "Bob", "Charlie"};
Answered by AI
Add your answer
Q2. What is Compiler ?
Ans. 
A compiler is a software program that translates code written in a high-level programming language into machine code that can be executed by a computer.
• Converts high-level programming language code into machine code

• Checks for syntax errors and other issues in the code

• Generates executable files that can be run on a computer

• Examples: GCC (GNU Compiler Collection), Clang, Microsoft Visual C++ Compiler
Answered by AI
Add your answer

In mettl platform. easy to medium question.

Q1. Oops concepts, hr round, managerial
Add your answer
Q2. Java programming. puzzles, dbms
Add your answer

2 rounds of aptitude basic reasoning and english

With HR group discussion

Q1. Basic common questions
Add your answer
Q2. About family background
Add your answer

Q1. Self intro and some basic questions related to my resume and studies
Add your answer