10+ Chabria Infotech Interview Questions and Answers

SSR and CSR websites refer to server-side rendering and client-side rendering respectively. SSR is used for better initial load performance and SEO, while CSR is suitable for dynamic and interactive content.

• SSR (Server-Side Rendering) websites render the web pages on the server and send the fully rendered HTML to the client.

• CSR (Client-Side Rendering) websites load a minimal HTML skeleton and then use JavaScript to fetch data and render the content on the client-side.

• SSR is b...read more

To enhance web performance of a page, optimize images, minify code, reduce server response time, use caching, and enable compression.

• Optimize images by compressing them and using appropriate file formats.

• Minify code by removing unnecessary characters and whitespace.

• Reduce server response time by using a content delivery network (CDN) and optimizing database queries.

• Use caching to store frequently accessed data and reduce server requests.

• Enable compression to reduce file sizes...read more

Answering questions related to Singleton classes, Rest API, repeating characters in a string, variable inheritance, and exception handling.

• Singleton classes are used to ensure that only one instance of a class is created and provide a global point of access to it.

• Rest API is a way of building web services that are lightweight, scalable, and maintainable.

• To find the repeating character in a string, we can use a hashmap to store the frequency of each character and then iterate ...read more

I handle security in my application by implementing encryption, access controls, regular security audits, and staying updated on security best practices.

• Implement encryption for sensitive data to protect it from unauthorized access

• Use access controls to restrict user permissions and limit exposure of sensitive information

• Conduct regular security audits to identify and address vulnerabilities

• Stay updated on security best practices and implement necessary measures to enhance se...read more

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

• In Spring, singleton pattern is used by default for all beans created through the Spring container.

• This means that by default, Spring beans are singletons and only one instance is created and shared throughout the application.

• To connect to a database in Spring, you can use the JDBC template or ORM frameworks like Hibernate.

• You can configure the database connectio...read more

To make a class immutable, we can use final keyword for class, fields, and methods, make fields private, and avoid setters.

• Use final keyword for class to prevent inheritance

• Make fields private to restrict direct access

• Avoid providing setter methods for fields

• If fields are mutable objects, return a copy of the object instead of the original

I have used the Singleton, Factory, and Observer design patterns in my project.

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

• Factory pattern creates objects without specifying the exact class of object that will be created.

• Observer pattern defines a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.

HashMap works internally by using a hash function to map keys to their corresponding values in an array of linked lists.

• HashMap uses a hash function to determine the index of the array where the key-value pair will be stored.

• In case of hash collisions, where multiple keys map to the same index, a linked list is used to store multiple entries at that index.

• When retrieving a value, the hash function is used to find the correct index and then the linked list is searched for the ...read more

Monolithic architecture is a single unified unit, while microservices architecture breaks down the application into smaller, independent services.

• Monolithic architecture is a single, indivisible unit where all components are interconnected and interdependent.

• Microservices architecture breaks down the application into smaller, independent services that communicate with each other through APIs.

• Monolithic applications are typically easier to develop and test, but can be harder t...read more

I manage pressure by prioritizing tasks, staying organized, taking breaks, and seeking support when needed.

• Prioritize tasks based on deadlines and importance

• Stay organized with to-do lists and calendars

• Take breaks to recharge and avoid burnout

• Seek support from colleagues or supervisors when feeling overwhelmed

A hashmap is a data structure that allows for efficient retrieval of values based on their associated keys.

• A hashmap uses a hash function to convert keys into array indices.

• Collisions can occur when multiple keys hash to the same index.

• To handle collisions, a hashmap typically uses linked lists or other data structures to store multiple values at the same index.

• When retrieving a value, the hashmap uses the hash function to find the corresponding index and then searches the li...read more