Infosys Business Technology Associate Interview Questions and Answers

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
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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. Framework used in current project
Ans. 
Angular framework is used in the current project
• Angular framework is a popular choice for building web applications

• It follows the MVC (Model-View-Controller) architecture

• It provides features like two-way data binding and dependency injection
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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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All aptitude related questions they asked like quantity aptitude reasoning English

All coding related questions from C and java language

Q1. HR normal level questions about your self and your past experience about your family
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Q2. About your self About your family Your past experience Why you choose hcl
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Q3. Where you learn all these skills
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Q4. About there traning
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Q1. About sql and my sql
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Q1. About informatica power center
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Asking Solving problems and Coding decoding solutions ?

Write the sum of two Integer numbers by using Java programming language?

What about me ?, What i am doing? What was my Strength and weakness?

Q1. What was the salary for expecting you?
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Q2. Are you doing this job work ?
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Q3. When you want to join this job ?
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Q4. You want work for home or Work in office?
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Q5. Ok thankyou you will go on .
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30 minutes relating to Subject and General Knowledge and his activities and sharing past comppany

About himself and giving latest updates .. and his work attitude and interacting with clints ..

Q1. Verification of certificates and past company bank statement and current bank details and offer letter
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