Sony 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
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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.
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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
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One questions, 3 hrs time

Q1. Related to DSA and graphs
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Q1. PI questions general
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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
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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
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The easy aptitude test was well-designed.

A group discussion on a specific topic.

Q1. Sql related questions
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MCQ questions of C language

Q1. Tell me about yourself
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Q2. All about the things that were added in the resume
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Q3. I was asked to write a simple code
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Q1. Tell me about yourself and your family background
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Q2. What is your passion
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Q3. Do you have any other offer
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Dsa is usrd and it is bad