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Ques:- How can you secure data in transit and at rest in AWS?
Right Answer:

To secure data in transit in AWS, use SSL/TLS for encryption during transmission and implement VPNs or AWS Direct Connect for secure connections. To secure data at rest, use AWS services like S3 Server-Side Encryption, EBS encryption, and RDS encryption, along with IAM policies to control access.

Ques:- What are spot instances?
Right Answer:

Spot instances are a type of Amazon EC2 instance that allows you to bid on unused computing capacity at potentially lower prices than on-demand instances. They can be interrupted by AWS with little notice if the capacity is needed for on-demand instances.

Ques:- What is CloudWatch?
Right Answer:

Amazon CloudWatch is a monitoring and management service that provides data and insights about AWS resources and applications, allowing users to collect and track metrics, set alarms, and automate responses to changes in their AWS environment.

Ques:- What is the difference between Public and Private Subnet?
Right Answer:

A Public Subnet is a subnet that has a route to the internet through an Internet Gateway, allowing resources within it to be accessed from the internet. A Private Subnet, on the other hand, does not have a direct route to the internet, meaning resources in it cannot be accessed directly from the internet.

Ques:- What is an Elastic Load Balancer (ELB)?
Right Answer:

An Elastic Load Balancer (ELB) is a service that automatically distributes incoming application traffic across multiple targets, such as Amazon EC2 instances, containers, and IP addresses, to ensure high availability and reliability of applications.

Ques:- How is Elastic Beanstalk different from CloudFormation?
Right Answer:

Elastic Beanstalk is a platform-as-a-service (PaaS) that simplifies application deployment and management, automatically handling infrastructure provisioning, load balancing, and scaling. CloudFormation, on the other hand, is an infrastructure-as-code (IaC) service that allows you to define and provision AWS resources using templates, giving you more control over the infrastructure setup but requiring more manual configuration.

Ques:- What is the use of AWS Lambda?
Right Answer:

AWS Lambda is a serverless computing service that allows you to run code in response to events without provisioning or managing servers. It automatically scales and charges only for the compute time consumed.

Ques:- What is an AMI?
Right Answer:

An AMI (Amazon Machine Image) is a pre-configured template used to create virtual machines (EC2 instances) in AWS. It contains the operating system, application server, and applications needed to launch an instance.

Ques:- What is CloudFront?
Right Answer:

Amazon CloudFront is a content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to users with low latency and high transfer speeds by using a global network of edge locations.

Ques:- What is Route 53?
Right Answer:

Amazon Route 53 is a scalable and highly available Domain Name System (DNS) web service that translates domain names into IP addresses, helping to route end users to Internet applications.

Ques:- What are Availability Zones and Regions?
Right Answer:

Availability Zones are isolated locations within a Region that provide high availability and fault tolerance. A Region is a geographical area that contains multiple Availability Zones, allowing for resource distribution and redundancy across different physical locations.

Ques:- What is the difference between vertical and horizontal scaling?
Right Answer:

Vertical scaling (scaling up) involves adding more power (CPU, RAM) to an existing server, while horizontal scaling (scaling out) involves adding more servers to distribute the load.

Ques:- What are Security Groups?
Right Answer:

Security Groups are virtual firewalls in AWS that control inbound and outbound traffic to AWS resources, such as EC2 instances. They allow you to specify rules based on IP addresses, protocols, and ports to manage access.

Ques:- What is the difference between S3 and EBS?
Right Answer:

Amazon S3 (Simple Storage Service) is an object storage service designed for storing and retrieving any amount of data from anywhere on the web, while Amazon EBS (Elastic Block Store) is a block storage service used with Amazon EC2 instances for storing data that requires low-latency access, such as file systems and databases.

Ques:- What is AWS?
Right Answer:

AWS, or Amazon Web Services, is a comprehensive cloud computing platform provided by Amazon that offers a wide range of services, including computing power, storage, and databases, as well as machine learning, analytics, and networking, allowing businesses to scale and grow without the need for physical infrastructure.



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