Atlas Copco ASM Retail North Interview Questions and Answers

Conversation about my experience

Quantitative Aptitude, Numerical Ability, Synonym etc

Q1. Introduce yourself Where you did Training? What was your academic project? Guide? What do you like? Tractor or Implement? What is your aim?
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It was basically a aptitude round of 60 questions.

There were 3 coding questions.The question was based on Recursion and
Dynamic problem.

Q1. Self introduction What is polymorphism, oops concepts DBMS Indexes Normalisation Abstraction vs interface
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Related to logical,verbal

Q1. Related to coding,basic programming questions
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Topic given you need to stand out

Case study given regarding marketing opportunity

Q1. Interview taken
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Q1. Difference between normalisation and de-normalisation?
Ans. 
Normalization is the process of organizing data in a database while denormalization is the process of intentionally introducing redundancy into a database.
• Normalization is used to minimize data redundancy and improve data integrity.

• Denormalization is used to improve query performance by reducing the number of joins needed.

• Normalization involves breaking down a table into smaller tables and establishing relationships be...read more
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Q2. Write code logic for Fibonacci series?
Ans. 
Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones.
• Declare variables for first two numbers of the series

• Loop through the series and calculate the next number by adding the previous two

• Store the result in an array or print it

• Repeat until desired number of terms is reached
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Q3. Types of inheritance with real time example?
Ans. 
Types of inheritance include single, multiple, multilevel, hierarchical, hybrid, and multipath inheritance.
• Single inheritance: A child class inherits from a single parent class.

• Multiple inheritance: A child class inherits from multiple parent classes.

• Multilevel inheritance: A child class inherits from a parent class, which in turn inherits from another parent class.

• Hierarchical inheritance: Multiple child classes inher...read more
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Q4. Oops concepts - difference between object and class?
Ans. 
Object is an instance of a class while class is a blueprint for creating objects.
• Class is a template or blueprint for creating objects

• Object is an instance of a class

• Class defines the properties and methods that an object will have

• Object is created from a class using the 'new' keyword

• Multiple objects can be created from a single class
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Q1. What are your strengths and weaknesses?
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Q2. Tell me about yourself.
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Common topics was asked should speak confidently without fear

Q1. Introduce yourself
Ans. 
I am a recent graduate with a degree in Computer Science and a passion for coding and problem-solving.
• Recent graduate with a degree in Computer Science

• Passionate about coding and problem-solving

• Strong communication and teamwork skills
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Q2. About the project
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They asked about corona

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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