Samsung Electro-Mechanics Python Fullstack Developer Interview Questions and Answers

An aptitude test having questions on html, SQL, oops concepts and coding questions

Q1. Explain Joins in SQL.
Ans. 
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
• Joins are used to retrieve data from multiple tables based on a related column.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• INNER JOIN returns rows when there is at least one match in both tables.

• LEFT JOIN returns all rows from the left table and the matched rows from the right table.

• RI...read more
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Q2. How to create an HTML table.
Ans. 
HTML tables can be created using the <table> element with nested <tr> (table row), <th> (table header), and <td> (table data) elements.
• Use the <table> element to create the table structure.

• Use <tr> elements to define rows within the table.

• Use <th> elements for table headers and <td> elements for table data within each row.

• Add attributes like colspan and rowspan to merge c...read more
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Q1. C programming,Java language,oops
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Q1. C language ,java language and oops,
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Q1. What is a data structure?
Ans. 
A data structure is a way of organizing and storing data in a computer so that it can be accessed and modified efficiently.
• Data structures define the way data is stored, accessed, and manipulated in a computer program.

• Examples include arrays, linked lists, stacks, queues, trees, and graphs.

• Choosing the right data structure is crucial for optimizing the performance of algorithms and applications.
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Q2. What is a linked list?
Ans. 
A linked list is a data structure where each element is connected to the next element through pointers.
• Consists of nodes where each node contains data and a reference to the next node

• Can easily insert or delete elements without shifting other elements

• Examples: singly linked list, doubly linked list, circular linked list
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Q3. What is HashSet?
Ans. 
HashSet is a collection that does not allow duplicate elements and does not guarantee the order of elements.
• HashSet implements the Set interface in Java.

• It uses a hash table for storage.

• Example: HashSet<String> set = new HashSet<>();
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Q4. Explain recursion.
Ans. 
Recursion is a programming technique where a function calls itself in order to solve a problem.
• Recursion involves breaking down a problem into smaller subproblems and solving them recursively.

• A base case is needed to stop the recursion and prevent infinite loops.

• Recursion can be used to solve problems like factorial calculation, Fibonacci sequence, and tree traversal.
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Q1. What is a static constructor?
Ans. 
A static constructor is a special type of constructor in a class that is used to initialize static data members.
• Static constructors are called only once when the class is first accessed.

• They are used to initialize static variables or perform any necessary setup for the class.

• Static constructors do not take any parameters and cannot be called explicitly.

• Example: public class MyClass { static MyClass() { // initializatio
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It was 3 rounds of aptitude test. They give us back to back test.

Q1. About personal details
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Array question based

Asked about some coding questions

30 minute,reasoning,verbal,logical

20minute, python,c++

Q1. Normal question
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Q1. What is your Salary?
Ans. 
I am looking for a competitive salary based on my experience and skills.
• I am open to discussing salary based on the responsibilities and requirements of the position.

• I have researched the average salary range for Application Developers in this location.

• I am seeking a salary that reflects my qualifications and contributions to the company.

• I am flexible and willing to negotiate based on the overall compensation package o
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