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AWS Interview Question and Answers

Last Updated on Aug 23, 2023, 2k Views


AWS Cloud Computing

1: What is Amazon Web Services (AWS)?

Amazon Web Services (AWS) Course is a cloud computing platform provided by Amazon. It offers a wide range of services, including computing power, storage, databases, networking, machine learning, analytics, and more. AWS Course allows businesses to scale and grow without the need for investing in physical hardware infrastructure.

2: What are the key components of AWS?

AWS Course comprises various services, but some key components include:

Amazon EC2 (Elastic Compute Cloud): Provides scalable virtual servers.

Amazon S3 (Simple Storage Service): Offers scalable object storage.

Amazon RDS (Relational Database Service): Manages relational databases.

Amazon VPC (Virtual Private Cloud): Enables you to create isolated networks within AWS.

AWS Lambda: Executes code in response to events without provisioning servers.

Amazon SNS (Simple Notification Service): Facilitates communication between various services.

3: What is the difference between Amazon S3 and Amazon EBS?

Amazon S3 is object storage used to store and retrieve files, while Amazon EBS (Elastic Block Store) provides persistent block storage volumes for use with Amazon EC2 instances. EBS volumes are mounted to instances as block devices, whereas S3 stores objects with a unique key and provides an HTTP interface for retrieval.

4: Explain the concept of Amazon EC2 instances.

Amazon Elastic Compute Cloud (EC2) provides scalable virtual servers in the cloud. EC2 instances are essentially virtual machines that you can launch in various configurations, such as different operating systems, CPU, memory, and storage capacities. They can be used to run applications, host websites, or perform various computing tasks.

5: What is AWS Lambda?

AWS Course Lambda is a server less compute service that allows you to run code in response to events without provisioning or managing servers. You upload your code, set up triggers, and Lambda automatically scales to handle the load. It's commonly used for building event-driven architectures, running background tasks, and automating workflows.

6: How can you ensure security in AWS?

AWS Course provides several security mechanisms, including:
Identity and Access Management (IAM) for managing user access.

Virtual Private Cloud (VPC) for isolating networks.

Security Groups and Network ACLs for controlling inbound and outbound traffic.

Encryption options for data at rest and in transit.

Multi-Factor Authentication (MFA) for additional user authentication.

AWS Course WAF (Web Application Firewall) for protecting web applications from attacks.

7: What is Auto Scaling in AWS?

Auto Scaling is a service that automatically adjusts the number of EC2 instances in a group based on user-defined policies. It ensures that your application's capacity scales seamlessly with demand, improving availability and cost-effectiveness.

8: How does Amazon RDS differ from Amazon DynamoDB?

Amazon RDS is a managed relational database service that supports various database engines like MySQL, PostgreSQL, SQL Server, etc. Amazon DynamoDB is a managed NoSQL database service. DynamoDB is designed for high scalability and low-latency, while RDS provides the traditional relational database capabilities.

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