Atos Senior Technology Lead Interview Questions and Answers

Q1. What are the issues you face and how to resolve
Ans. 
Issues faced include outdated technology, lack of resources, and conflicting requirements. Resolving involves upgrading systems, prioritizing tasks, and effective communication.
• Outdated technology causing compatibility issues

• Lack of resources leading to delays in project completion

• Conflicting requirements from different stakeholders

• Upgrade systems to latest technology

• Prioritize tasks based on importance and impact

• Commu...read more
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Q2. Do you received any P1 or P2 incidents
Ans. 
Yes, I have received P1 and P2 incidents in my role as a Technology Architect.
• Yes, I have experience handling P1 incidents which are critical and require immediate attention.

• I have also dealt with P2 incidents which are high priority but not as urgent as P1 incidents.

• In both cases, I have worked with cross-functional teams to troubleshoot and resolve the issues efficiently.
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Q1. Is rotational shift is fine
Ans. 
Rotational shift can be acceptable depending on individual preferences and work-life balance.
• Rotational shifts can provide flexibility for employees with different schedules or preferences.

• Some individuals may thrive in a rotational shift environment, while others may find it challenging to adjust.

• It is important for employers to consider the impact of rotational shifts on employee well-being and productivity.

• Communica...read more
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Q2. Why are you leaving current organization
Ans. 
Seeking new challenges and growth opportunities
• Desire for career advancement

• Looking for new challenges

• Seeking a more innovative environment

• Want to broaden skill set
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Q1. Write program to get common number from two arraylist using java 8
Ans. 
Program to find common numbers in two arraylists using Java 8
• Use Java 8 streams to filter out common elements between two arraylists

• Convert arraylists to streams, use filter() and collect() methods

• Use distinct() method to avoid duplicate common numbers
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Q2. 2nd highest salary of an employee
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Q1. How the team is been handled
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Q2. Production issues faced recently
Ans. 
Recently faced production issues include server downtime and software bugs.
• Server downtime due to hardware failure

• Software bugs causing crashes and data loss

• Integration issues with third-party systems
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Q1. Exolain jvm Architecture
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Q2. Write pallindrome code
Ans. 
A palindrome code is a program that checks if a given string reads the same forwards and backwards.
• Create a function that takes a string as input

• Reverse the string and compare it to the original string

• Return true if they are the same, false otherwise
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Q1. What is rdbms in sql
Ans. 
RDBMS stands for Relational Database Management System in SQL.
• RDBMS is a type of database management system that stores data in a structured format using rows and columns.

• It allows users to establish relationships between different data sets.

• SQL (Structured Query Language) is commonly used to interact with RDBMS.

• Examples of RDBMS in SQL include MySQL, Oracle, and SQL Server.
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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 represent multiple data types.

• Examples include method overloading and method overriding in object-oriented programming.
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Q1. Tell me about a time a project was not successful & how you worked through it
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Q2. What does success look like to you
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It was a multiple questions test, 90 minutes test 43 questions technical question based on the position i have applied. It is intermediate level of test. I have cleared the test.

Q1. After completed my Assessment test , I got a call from HR for technical round through WebEx. Yesterday interview done in that call panel asked about my role of my current company and asked about my project...read more
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Q2. Put vs patch in restful
Ans. 
In RESTful APIs, 'put' is used to update an entire resource, while 'patch' is used to update only specific fields of a resource.
• PUT is used to update the entire resource, while PATCH is used to update specific fields

• PUT requires the client to send the entire updated resource, while PATCH only requires the client to send the specific fields to be updated

• PUT is idempotent, meaning multiple identical requests will have th...read more
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Q3. Different between restful and webclient
Ans. 
Restful is an architectural style for designing networked applications, while WebClient is a class in Java used for making HTTP requests.
• RESTful is an architectural style that uses HTTP methods like GET, POST, PUT, DELETE to perform operations on resources.

• WebClient is a class in Java that provides a higher-level API for making HTTP requests and handling responses.

• RESTful APIs are stateless and use standard HTTP status...read more
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Q4. Serialization and deserialization in java
Ans. 
Serialization is the process of converting an object into a byte stream, while deserialization is the process of converting a byte stream back into an object in Java.
• Serialization is achieved by implementing the Serializable interface in Java.

• Deserialization is done by reading the byte stream and reconstructing the object using the readObject() method.

• Example: ObjectOutputStream for serialization and ObjectInputStream
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Q5. What are functional interface in java8
Ans. 
Functional interfaces in Java 8 are interfaces with a single abstract method, used for lambda expressions and method references.
• Functional interfaces have only one abstract method, but can have multiple default or static methods.

• They can be used with lambda expressions and method references.

• Examples include java.lang.Runnable, java.util.Comparator, and java.util.function.Predicate.
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Q1. 1. Current Project architecture 2. How do you design micro services to scalable 3. How do you ensure ci/cd working as expected 4. What is oauth 5. Which Authorization servers you worked
Ans. 
Answering questions related to current project architecture, designing scalable micro services, ensuring CI/CD, OAuth, and authorization servers.
• Current project architecture involves a detailed analysis of the existing system, identifying key components, and designing a scalable solution.

• Designing micro services to be scalable requires breaking down the application into smaller, independent services that can be easily ...read more
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Q1. I was asked question on Oracle Conversions and performance tuning.
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