Thales Data Analyst Interview Questions and Answers

Q1. How to transpose data set
Ans. 
Transposing a data set involves flipping rows and columns.
• Identify the data set to be transposed

• Create a new table with the columns and rows flipped

• Copy the data from the original table to the new table

• Transpose can be done using Excel, Python, R, SQL, etc.

• Example: Transposing a table of sales data to have products as rows and months as columns
Answered by AI
View 1 more answer

Q1. What is Structured Query Language?
Ans. 
Structured Query Language (SQL) is a programming language used to manage and manipulate relational databases.
• SQL is used to create, modify, and delete databases, tables, and data

• It is used to retrieve data from databases using queries

• SQL is used to perform operations on data such as sorting, filtering, and grouping

• Examples of SQL-based database management systems include MySQL, Oracle, and Microsoft SQL Server
Answered by AI
Add your answer

Q1. Difference between C and Java
Ans. 
C is a procedural language while Java is an object-oriented language.
• C is compiled while Java is interpreted

• C has pointers while Java does not

• Java has automatic garbage collection while C does not

• Java is platform-independent while C is not

• Java has built-in support for multithreading while C does not
Answered by AI
Add your answer

Simple aptitude and coding test, I was selected from national talent hunt exam

Q1. Discussion about projects and Areas of interest
Add your answer

Q1. Basic questions like ok with location, shifts etc
Add your answer