Infosys Senior Systems Engineer Interview Questions, Process, and Tips

OIC stands for Oracle Integration Cloud, a platform that enables users to integrate applications, automate processes, and manage APIs.

• Oracle Integration Cloud (OIC) is a cloud-based integration platform offered by Oracle.

• It allows users to connect applications, automate processes, and create APIs.

• OIC provides pre-built integrations for popular applications like Salesforce, NetSuite, and ServiceNow.

• Users can also create...read more

OOPS principles refer to Object-Oriented Programming concepts like Inheritance, Encapsulation, Polymorphism, and Abstraction.

• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail

Routing in Angular is the process of navigating between different components based on the URL.

• Angular uses the Angular Router module to handle routing in applications.

• Routes are defined in the app-routing.module.ts file using the RouterModule.forRoot() method.

• Routes can have path, component, redirectTo, pathMatch, and children properties.

• RouterOutlet directive is used in the main app component to display the routed com...read more

Dependency Injection in Angular allows for providing dependencies to a class without creating them inside the class.

• In Angular, Dependency Injection is used to provide dependencies to a class instead of creating them inside the class.

• It helps in making classes more modular, reusable, and easier to test.

• Dependencies are typically provided in the constructor of a class using TypeScript.

• Example: @Injectable() decorator is...read more

HTTP methods are used to indicate the desired action to be performed on a resource.

• GET - retrieve data from a server

• POST - submit data to be processed by a server

• PUT - update a resource on the server

• DELETE - remove a resource from the server

• PATCH - partially update a resource on the server

Unique data in a record can be selected by using a combination of data analysis techniques and algorithms.

• Identify key fields or attributes that can be used to uniquely identify each record

• Use data profiling to understand the distribution of values in the dataset

• Implement data cleansing techniques to remove duplicates

• Utilize data matching algorithms to identify and select unique records

• Consider using machine learning m

slice() returns a shallow copy of a portion of an array into a new array, while split() splits a string into an array of substrings based on a specified separator.

• slice() does not modify the original array, while split() returns a new array of substrings

• slice() can take two parameters for start and end index, while split() takes a separator as a parameter

• Example: var arr = [1, 2, 3, 4, 5]; arr.slice(1, 3) returns [2, 3...read more