Sasthapuri Hotels Interview Questions and Answers

The time taken to show the demo after receiving the RFP varies based on project complexity and client requirements.

• The time frame for demo preparation can range from a few days to a few weeks, depending on the scope of the project.

• It is important to thoroughly understand the RFP requirements before scheduling the demo to ensure all key points are addressed.

• Collaboration with the sales team and other stakeholders is crucial to align on the demo timeline and content.

• Flexibility...read more

Association represents a relationship between two classes, Aggregation is a type of association with a whole-part relationship.

• Association represents a relationship between two classes without implying any ownership.

• Aggregation is a type of association where one class is a part of another class.

• Composition is a stronger form of aggregation where the part cannot exist without the whole.

• In UML, association is represented by a solid line, aggregation by an empty diamond, and com...read more

Security in Microservices is maintained through authentication, authorization, encryption, and monitoring.

• Implementing authentication mechanisms like OAuth, JWT, or API keys to verify the identity of clients accessing the microservices.

• Utilizing authorization techniques such as role-based access control (RBAC) or attribute-based access control (ABAC) to control what actions users can perform.

• Encrypting data in transit using protocols like HTTPS and TLS, and at rest using encr...read more

To invoke an AWS Lambda function using Java program.

• Create an AWS Lambda client using AWS SDK for Java

• Invoke the Lambda function using invoke method

• Handle the response from the Lambda function

I have worked with design patterns such as Singleton, Factory, Observer, and Strategy.

• 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.

• Strategy pattern defines a family...read more

I have used a variety of AWS services including EC2, S3, RDS, Lambda, and CloudFormation.

• EC2 - Elastic Compute Cloud for scalable virtual servers

• S3 - Simple Storage Service for object storage

• RDS - Relational Database Service for managed databases

• Lambda - Serverless computing service for running code without provisioning servers

• CloudFormation - Infrastructure as Code service for automating resource provisioning

I have used AWS Lambda for building serverless applications and automating tasks.

• Developed a serverless image processing application using AWS Lambda, S3, and API Gateway

• Implemented a cron job using AWS Lambda to automatically backup DynamoDB tables

• Integrated AWS Lambda with Amazon SNS to send notifications based on certain events