10+ Jubilant Foods Works Interview Questions and Answers

Factors considered before moving to PaaS

• Cost-effectiveness compared to on-premise solutions

• Scalability and flexibility of the platform

• Ease of deployment and management

• Availability of necessary features and integrations

• Security and compliance measures

• Vendor lock-in and portability

• Ability to focus on application development rather than infrastructure management

Factors considered before moving to IaaS

• Cost savings compared to on-premise infrastructure

• Scalability and flexibility to meet changing business needs

• Reduced maintenance and management responsibilities

• Access to advanced technologies and features

• Improved disaster recovery and business continuity capabilities

I have used various logging methodologies including centralized logging, structured logging, and event logging.

• Centralized logging using tools like ELK stack and Splunk

• Structured logging using libraries like Serilog and log4net

• Event logging using Windows Event Viewer and Syslog

• Custom logging solutions using database or file storage

• Logging for performance monitoring and debugging purposes

IaaS provides infrastructure while PaaS provides a platform for application development and deployment.

• IaaS offers virtualized computing resources like servers, storage, and networking while PaaS provides a platform for developers to build, test, and deploy applications.

• IaaS requires more management and maintenance from the user while PaaS abstracts away much of the underlying infrastructure.

• Examples of IaaS providers include Amazon Web Services (AWS) and Microsoft Azure whil...read more

Call, apply, and bind are methods in JavaScript used to manipulate the 'this' keyword and pass arguments to functions.

• Call invokes a function with a specified 'this' value and arguments passed individually.

• Apply invokes a function with a specified 'this' value and arguments passed as an array.

• Bind creates a new function with a specified 'this' value and arguments passed individually.

• All three methods are used to manipulate the 'this' keyword in JavaScript.

JavaScript closure is a function that has access to its outer function's variables, even after the outer function has returned.

• Closure is created when a function is defined inside another function.

• The inner function has access to the outer function's variables and parameters.

• The outer function's variables and parameters are not accessible from outside the closure.

• Closures can be used to create private variables and methods.

• Example: function outer() { var x = 10; function inne...read more

First level cache is located inside the CPU core and is smaller but faster, while second level cache is larger but slower.

• First level cache is typically around 32KB-256KB in size and is faster than second level cache.

• Second level cache is larger, around 256KB-8MB, and is slower than first level cache.

• Cache mechanism involves storing frequently accessed data closer to the CPU for faster access times.

A singleton is a design pattern that restricts the instantiation of a class to one object.

• Singleton pattern ensures that a class has only one instance and provides a global point of access to it.

• Commonly used in scenarios where a single instance of a class is required, such as database connections, logging, or thread pools.

• Example: Singleton pattern can be implemented by creating a static method in a class that returns the same instance every time it is called.

Hibernate configuration involves setting up database connection properties and mapping classes to database tables.

• Create a hibernate.cfg.xml file to specify database connection properties

• Define mapping between Java classes and database tables using annotations or XML

• Configure session factory to create sessions for database operations

• Set up transaction management for handling database transactions