Sony Data Science Intern Interview Questions and Answers

There were 4 sections and first one was quant, second one was logical, third was English and finally 3 coding questions in last section

4 codes and 5 technical questions

Q1. Explain multi threading
Ans. 
Multi threading is the ability of a CPU to execute multiple threads concurrently.
• Allows for parallel execution of tasks, improving performance

• Each thread has its own stack and runs independently

• Threads can communicate and synchronize using shared memory

• Examples: running multiple tasks simultaneously in a web server, processing data in parallel
Answered by AI
Add your answer
Q2. What is polymorphism
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types.

• Examples include method overloading and method overriding in object-oriented programming.
Answered by AI
Add your answer
Q3. Diff b/w inner and outer joins
Ans. 
Inner join returns only the rows that have matching values in both tables, while outer join returns all rows from both tables.
• Inner join: returns rows with matching values in both tables

• Outer join: returns all rows from both tables, with NULL values where there is no match

• Example: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

• Example: Outer join - SELECT * FROM table1 LEFT OUTER JOIN table
Answered by AI
Add your answer

One questions, 3 hrs time

Q1. Related to DSA and graphs
Add your answer

Q1. PI questions general
Add your answer

Trees, Graphs, 3 Questions in two hours

Q1. Merge two sorted arrays
Ans. 
Merge two sorted arrays into a single sorted array
• Create a new array to store the merged result

• Iterate through both arrays simultaneously and compare elements to add to the new array

• Handle cases where one array is longer than the other
Answered by AI
Add your answer
Q2. Add a node to bst
Ans. 
To add a node to a binary search tree (BST), compare the value of the new node with the current node and traverse left or right accordingly until a suitable spot is found.
• Start at the root node

• Compare the value of the new node with the current node

• If the new node value is less than the current node, move to the left child node

• If the new node value is greater than the current node, move to the right child node

• Repeat the...read more
Answered by AI
Add your answer

The easy aptitude test was well-designed.

A group discussion on a specific topic.

Q1. Sql related questions
Add your answer

MCQ questions of C language

Q1. Tell me about yourself
Add your answer
Q2. All about the things that were added in the resume
Add your answer
Q3. I was asked to write a simple code
Add your answer

Q1. Tell me about yourself and your family background
Add your answer
Q2. What is your passion
Add your answer
Q3. Do you have any other offer
Add your answer

Dsa is usrd and it is bad

3 medium level DSA questions based on Arrays, priority queue and DP

Q1. Discussion on Projects, one medium DSA question and operating system
Add your answer
Q2. Questions based on Implementation of Stacks, queues and linked list, discussion on projects
Add your answer

Q1. Why do you want to Join company
Add your answer
Q2. Basic strength weakness questions quite easy, lasted on a phone call for 10 mins
Add your answer