Infosys Interview Questions, Process, and Tips for Experienced

BTP stands for Business Technology Platform. It is a platform-as-a-service offering from SAP that provides tools and services for developing, integrating, and extending applications.

• BTP offers services such as database and data management, analytics, machine learning, and IoT.

• It allows businesses to build, run, and manage applications in the cloud.

• Scope of work includes implementing security measures, configuring acces...read more

Git merge combines changes from different branches, while Git rebase moves the entire branch to a new base commit.

• Git merge creates a new commit with the combined changes of the branches being merged.

• Git rebase moves the entire branch to a new base commit, resulting in a linear history.

• Merge preserves the history of changes, while rebase rewrites the commit history.

• Rebasing is useful for keeping a clean and linear hist...read more

Git fetch downloads changes from a remote repository, while Git merge combines changes from different branches.

• Git fetch updates the remote tracking branches in your local repository without merging them with your current branch.

• Git merge combines changes from a different branch into your current branch.

• Git fetch is useful for reviewing changes before merging, while Git merge is used to integrate changes into your curr...read more

Mandatory fields in Swift MT 103 message

• Sender's Reference (20)

• Sender's Account Number (50K)

• Receiver's Account Number (59)

• Amount (32A)

• Currency (33B)

• Value Date (32A)

• Sender's Correspondent (53A)

• Receiver's Correspondent (54A)

Serial method involves testing one sample at a time, while cover method involves testing multiple samples together.

• Serial method tests samples individually in sequence

• Cover method tests multiple samples simultaneously

• Serial method is time-consuming but more accurate

• Cover method is faster but may lead to false negatives

• Example: Serial method used in PCR testing, cover method used in pool testing

ISO is a set of international standards for various industries, while Swift is a messaging network used by financial institutions.

• ISO stands for International Organization for Standardization, which sets standards for various industries such as quality management (ISO 9001) and information security (ISO 27001).

• Swift (Society for Worldwide Interbank Financial Telecommunication) is a messaging network used by financial i...read more

Waterfall is a linear sequential approach to software development, while Agile is an iterative and incremental approach.

• Waterfall follows a sequential process, while Agile allows for flexibility and adaptability.

• Waterfall requires all requirements to be defined upfront, while Agile allows for changes throughout the project.

• Waterfall has a fixed timeline and budget, while Agile focuses on delivering value in short itera...read more

Securing a web API involves implementing authentication, authorization, and encryption.

• Implement authentication to verify the identity of the client accessing the API

• Implement authorization to control what actions the client can perform

• Use HTTPS to encrypt the communication between the client and the API

• Implement rate limiting to prevent abuse and protect against denial-of-service attacks

• Apply input validation and outp...read more

Improving web API performance involves optimizing code, caching, using asynchronous programming, and scaling infrastructure.

• Optimize code by reducing unnecessary database queries, using efficient algorithms, and minimizing network calls.

• Implement caching to store frequently accessed data and reduce the load on the server.

• Use asynchronous programming to handle multiple requests concurrently and improve responsiveness.

• Sc...read more

Delegates are function pointers used to encapsulate methods, while generics are used to create reusable code for different data types.

• Delegates are used to create callbacks and event handlers.

• Generics allow the creation of classes, methods, and interfaces that can work with different data types.

• Delegates can be used to define and invoke methods dynamically at runtime.

• Generics provide type safety and eliminate the need ...read more

Generics can be used in projects to create reusable code that can work with different types.

• Generics can be used in data structures like lists, dictionaries, and queues to store and retrieve different types of data.

• Generics can be used in algorithms and functions to work with different types of inputs and outputs.

• Generics can be used in database operations to handle different types of data.

• Generics can be used in user ...read more

Delegates are used to create references to methods, allowing methods to be passed as parameters or stored as variables.

• Delegates provide a way to achieve callback functionality in C#.

• Delegates can be used to implement event handling.

• Delegates enable loose coupling and separation of concerns.

• Delegates can be used to create and invoke anonymous methods.

• Delegates can be used to implement the observer pattern.

Join query using Entity Framework

• Use the LINQ query syntax to perform joins in Entity Framework

• Use the 'join' keyword to specify the join condition

• Use 'into' keyword to create a group join

• Use 'on' keyword to specify the join condition

• Use 'equals' keyword to define the equality condition

Dependency injection is a design pattern that allows objects to be loosely coupled by providing their dependencies externally.

• Dependency injection is a way to achieve inversion of control in software development.

• It helps in creating loosely coupled and modular code.

• In dependency injection, the dependencies of a class are provided externally rather than being created within the class itself.

• This allows for easier testin...read more

To handle large number of records in a web API, you can use pagination, streaming, or compression techniques.

• Implement pagination to retrieve records in smaller chunks

• Use streaming to process and return records in real-time

• Apply compression techniques like GZIP to reduce the size of the response

• Consider caching strategies to improve performance

The project structure in Dot Net Core typically consists of folders for source code, configuration files, and dependencies.

• The source code is usually organized into folders based on the application's modules or layers, such as Controllers, Models, and Views.

• Configuration files like appsettings.json store application settings and connection strings.

• Dependencies are managed using a package manager like NuGet, and their v...read more

Entity Framework provides a higher level of abstraction, simplifies database operations, improves productivity, and reduces code complexity.

• Entity Framework abstracts away the underlying database, allowing developers to work with a higher level of abstraction.

• It simplifies database operations by providing an object-oriented approach to data access.

• Entity Framework improves productivity by reducing the amount of code ne...read more