Apisero Interview Questions and Answers

Analytics in HR enhances decision-making, improves employee engagement, and optimizes talent management through data-driven insights.

• Predictive analytics can forecast employee turnover, allowing HR to implement retention strategies.

• Performance analytics can identify high-performing employees and inform succession planning.

• Sentiment analysis of employee feedback can help improve workplace culture and engagement.

• Rec...read more

This question tests your coding skills through a practical problem-solving scenario.

• Understand the problem statement clearly before coding.

• Break down the problem into smaller, manageable parts.

• Consider edge cases and how your solution handles them.

• Write clean, maintainable code with comments where necessary.

• Test your solution with various inputs to ensure correctness.

Java 8 introduced significant features like lambdas, streams, and the new Date-Time API, enhancing productivity and code readability.

• Lambda Expressions: Enable functional programming by allowing you to pass behavior as a parameter. Example: (x, y) -> x + y.

• Streams API: Facilitates functional-style operations on collections. Example: list.stream().filter(x -> x > 10).collect(Collectors.toList()).

• Default Me...read more

OOP in Java is a programming paradigm based on objects, enabling code reusability, encapsulation, inheritance, and polymorphism.

• Encapsulation: Bundling data and methods that operate on the data within one unit (class). Example: private variables with public getters/setters.

• Inheritance: Mechanism where one class inherits properties and behavior from another. Example: class Dog extends Animal.

• Polymorphism: Ability t...read more

An interface in Java is a reference type that defines a contract for classes to implement methods without providing their implementation.

• Interfaces can contain method signatures and constants but no method bodies.

• A class implements an interface using the 'implements' keyword. Example: 'class MyClass implements MyInterface'.

• Multiple interfaces can be implemented by a single class, allowing for multiple inheritance ...read more

Various mechanisms like object stores, HTTP caching, and in-memory caching can be used to implement caching in Mule apps.

• Object stores can be used to store and retrieve data in key-value pairs for caching purposes.

• HTTP caching can be implemented by setting appropriate cache-control headers in HTTP responses.

• In-memory caching can be achieved using tools like Ehcache or Guava Cache.

• Cache scope in Mule can be used to...read more

Requests are served if API policies are not retrieved by the embedded gateway, managed by the Mule app developer.

• Requests are served by default if API policies are not retrieved by the embedded gateway.

• The Mule app developer manages the deployment process and ensures that API policies are retrieved by the embedded gateway.

• If API policies are critical for the functionality of the app, the developer should ensure th...read more

SOAP is a protocol for exchanging structured information in web services, while REST is an architectural style for designing networked applications.

• SOAP is a protocol, while REST is an architectural style

• SOAP uses XML for message format, REST can use various formats like JSON, XML, etc.

• SOAP has built-in error handling, REST relies on HTTP status codes

• SOAP requires more bandwidth and resources, REST is lightweight ...read more