Atos Interview Questions, Process, and Tips

Q1. General questions and if you are fresher then about your projects
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Q1. General questions and if you are fresher then about your projects
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Q1. What is OSI Model
Ans. 
The OSI Model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.
• The OSI Model stands for Open Systems Interconnection Model.

• It helps in understanding how data is transferred over a network.

• Each layer has specific functions and interacts with adjacent layers.

• Examples of layers include Physical, Data Link, Network, Transport, Session, Presentation, and
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Q2. Different types of attacks
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Different types of attacks include phishing, malware, DDoS, and social engineering.
• Phishing: fraudulent emails or websites to trick users into revealing sensitive information

• Malware: malicious software designed to harm or exploit a computer system

• DDoS: Distributed Denial of Service attacks overwhelm a system with traffic, causing it to crash

• Social engineering: manipulating individuals into divulging confidential inform
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Q1. Are u available to relocate
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Q2. What are u negatives and positives
Ans. 
Positives include strong analytical skills and attention to detail. Negatives may include lack of experience or difficulty working in a team.
• Positives: strong analytical skills, attention to detail, ability to work independently

• Negatives: lack of experience, difficulty working in a team, limited knowledge of specific tools or technologies
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Q1. Only related to technical
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Q1. Salary package discussion
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Q1. Sorting array based on streams in java8, concurrent api changes in java8, optional class, functional interface. Lamba. Comparable vs comparator
Ans. 
Answering questions on Java 8 features such as streams, concurrent API, optional class, functional interface, lambda, and comparable vs comparator.
• Java 8 streams can be used to sort arrays based on specific criteria

• Concurrent API in Java 8 allows for parallel processing of data

• Optional class is used to handle null values in a more efficient way

• Functional interfaces are interfaces with only one abstract method, used for...read more
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Q1. Scenarios based solutions to problems and java8, exception, immutable class and spring boot annotations
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Q1. About atos. Why atos and previous projects i worked on.
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This covered topics on work. time, train, mathematical, etc.

Role of Technology in today's world.

Q1. Tell me about yourself
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Q2. Details on Final year project
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Q3. What is Inheritance
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Inheritance allows for code reuse and promotes modularity.

• The class that is being inherited from is called the superclass or base class.

• The class that inherits from the superclass is called the subclass or derived class.

• The subclass can access the public and protected members of the superclass.

• Inhe...read more
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Q4. What is Method Overloading
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Method overloading is the ability to define multiple methods with the same name but different parameters.
• Method overloading allows a class to have multiple methods with the same name but different parameters.

• It helps in improving code readability and reusability.

• The compiler determines which method to call based on the number, type, and order of the parameters.

• Example: int add(int a, int b) and int add(int a, int b, in
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Q5. Difference between JVM, JRE and JDK.
Ans. 
JVM is a virtual machine that executes Java bytecode. JRE is a runtime environment that includes JVM and necessary libraries. JDK is a development kit that includes JRE and tools for developing Java applications.
• JVM stands for Java Virtual Machine and is responsible for executing Java bytecode.

• JRE stands for Java Runtime Environment and includes JVM and necessary libraries to run Java applications.

• JDK stands for Java D...read more
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Q6. What is Update query in SQL
Ans. 
Update query is used to modify existing records in a database table.
• Update query is a SQL statement that allows you to change the values of one or more columns in a table.

• It is used to update existing records based on specified conditions.

• The syntax of an update query includes the UPDATE keyword followed by the table name, SET keyword to specify the columns to be updated, and WHERE clause to specify the conditions for ...read more
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Q7. Triggers in SQL
Ans. 
Triggers in SQL are database objects that are automatically executed in response to specified events.
• Triggers are used to enforce business rules, maintain data integrity, and automate tasks.

• They can be defined to execute before or after an INSERT, UPDATE, or DELETE operation.

• Triggers can be written in SQL or a procedural language like PL/SQL or T-SQL.

• Examples of trigger events include inserting a new record, updating a...read more
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Q1. Willing to relocate to different location
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Coding test was a bit tough. The test included objective questions on Java, Python3, SQL, C++. It was a bit lengthy exam than usual.

Q1. The on-on-one round was straight to the point which included questions based on the project requirement.
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Q1. Where do you see yourself in next 5 years?
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Q2. Why do you choose Atos?
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