AWS [SA | DevOps]: Day 1 Live Session Q/A

Security Services

Using AWS, you’ll gain the control and confidence you would like to securely run your business with the foremost flexible and secure cloud computing environment available today. AWS allows you to automate manual security tasks so you’ll shift your focus to scaling and innovating your business. Plus, you pay just for the services that you simply use.

Q3: What is the difference between a root user and an IAM user in AWS?
A3. There are two different types of users in AWS. You are either the account owner (root user) or you are an AWS Identity and Access Management (IAM) user. The root user is created when the AWS account is made and IAM users are created by the root user or an IAM administrator for the account.

Check more about AWS IAM.

Compute Services

The Compute category of services is the key resource that allows you to hold out computational abilities via a series of instructions employed by applications and systems. These resources cover a variety of various services and features, these being:

• EC2 – Amazon Elastic Compute Cloud
• AWS Elastic Beanstalk
• AWS Lambda
  

Storage Services

Cloud storage is a cloud computing model that stores data on the web through a cloud computing provider that manages and operates data storage as a service. It’s delivered on-demand with just-in-time capacity and costs and eliminates buying and managing your own data storage infrastructure.

Click here to know more about AWS Storage.

Q4: How many types of storage are there in AWS?
A4. There are three types of cloud data storage:

• Object Storage: Amazon S3
• File Storage: Amazon EFS
• Block Storage: Amazon EBS
  

Network Services

AWS provides the broadest and deepest set of networking services with the very best reliability, most security measures, and the highest performance in the world.

Q5: What are the Networking Services offered by AWS?
A5. The services are:

• Amazon VPC
• Amazon CloudFront
• Amazon Route 53
• AWS Direct Connect
• Amazon API Gateway
• AWS Global Accelerator
• Elastic Load Balancing

Database Services

AWS Database Services are Amazon’s completely controlled and scalable database solution for your applications. Amazon provides a good range of database options like Amazon RDS, Aurora, DynamoDB, ElasticCache, and Redshift.

Click here to know more about AWS Database Services.

Q6: What is Amazon RDS?
A6. Amazon Relational Database Service (Amazon RDS) makes it easy to spin up a database in the AWS cloud in just a few minutes. Amazon RDS is the most commonly used and managed database service that automates all the time-consuming administration tasks such as provisioning, setup, patching, and backups.

Amazon RDS provides six different relational database options:

• Amazon Aurora
• Oracle Database
• PostgreSQL
• MySQL
• MariaDB
• Microsoft SQL Server
  

Application Services

An application service simply refers to any software application that is deployed in a cloud environment rather than being hosted on a local server or machine. Companies that own and operate public cloud infrastructure deliver on-demand computing services to a spread of consumers across industry verticals.

Q7: How is Amazon SQS different from Amazon SNS?
A7. Amazon SNS permits applications to send time-critical messages to multiple subscribers through a “push” mechanism, eliminating the necessity to periodically check or “poll” for updates. Amazon SQS is a message queue service utilized by distributed applications to exchange messages through a polling model and may be utilized to decouple sending and receiving components.

Q8: What are the benefits of using Amazon SNS?
A8. Benefits of Amazon SNS are:

• Quick, push-based delivery
• Simple APIs and easy integration with applications
• Flexible message delivery over multiple transport protocols
• Reasonable, pay-as-you-go model with no up-front costs

Read more about Amazon SNS.

Audit & Monitoring

Amazon Web Services (AWS) monitoring may be a set of practices you’ll use to verify the safety and performance of your AWS resources and data. These practices believe in various tools and services to gather, analyze, and present data insights.

Q9: What types of monitoring services does CloudWatch provide?
A9. CloudWatch provides two types of monitoring services:-

• Basic Monitoring: – It’s a free service that has polls every 5 minutes, 10 metrics, 5GB of data ingestion, and 5 GB of data storage.
• Detailed Monitoring: – It’s a chargeable service that has polls every minute and is charged per instance per month.

Q10: What is CloudWatch vs CloudTrail?
A10. AWS CloudWatch monitors your AWS resources and applications, whereas CloudTrail monitors the activity in your AWS environment. For instance, with CloudWatch, you’ll scale your applications, whereas, with CloudTrail, you’ll see who did what to your applications, and you would possibly find issues. they’re not mutually exclusive, and you’ll set CloudTrail to send events to a CloudWatch log, as an example.

Check here to know more about the Amazon CloudTrail vs CloudWatch.

AWS Serverless Services

Serverless is a way to describe the services, practices, and strategies that enable you to build more agile applications so you can innovate and respond to change faster. With serverless computing, infrastructure management tasks like capacity provisioning and patching are handled by AWS, so you’ll specialize in only writing code that serves your customers. AWS Serverless services are:

• AWS Lambda
• AWS API Gateway
• AWS Step-Function
• AWS Fargate
• AWS SAM

CI/CD Developer Tools

The AWS Developer Tools is a set of services designed to enable developers and IT operations professionals practicing DevOps to rapidly and safely deliver software. AWS Provides the following developer tools:

• AWS Code Commit
• AWS CodeBuild
• AWS CodeDeploy
• AWS Code pipeline
• AWS Cloudformation
• AWS Cloud9

Check more about CI/CD Tools

Now, we will cover specific services under each course.

AWS Solution Architect Associate

We have the following specific modules in this:

• Module 2: Security Management AWS
• Module 3: Object Storage Options
• Module 4: Designing Computing Environment
• Module 5: LoadBalancer, Route53 & AutoScaling
• Module 6: Networking and Monitoring Services
• Module 7: Database Server and Analytics
• Module 8: Application & Messaging Services
• Module 9: Configuration Management and Automation
• Module 10: Architecting on AWS

Q11: Why should I use Amazon VPC?
A11. Amazon VPC enables users to build a virtual network in the AWS cloud without VPN, hardware, or physical data centers required. User can define their own network space, and control how their network and therefore the Amazon EC2 resources inside their network are exposed to the web. Users can also leverage the enhanced security options in Amazon VPC to provide more granular access to and from the Amazon EC2 instances in your virtual network.

Q12. What is Amazon Route 53?
A12. Amazon Route 53 is a highly efficient and scalable cloud web service and is also used for the health checking of resources. It provides developers with an efficient and reliable way to connect users to internet applications without any delay, it still features a delay in servers or applications, but users might not remember it. It effectively connects user requests to AWS such as Amazon EC2 instances, Elastic Load Balancing, or Amazon S3 buckets.

Check here to know more about Amazon Route 53

Q13: What are AWS Lambda and its benefits?
A13.AWS Lambda is a serverless computing service that executes your code in response to events and manages the underlying compute resources for you automatically. You may use Lambda to run code for nearly any form of application or backend service – with no administration required.

Its benefits are:

• Only pay for what you use
• Trust and integrity controls
• Automatic Scaling
• Built-in fault tolerance
• Extend other AWS services with custom logic

Q14: Why use Amazon API Gateway and what are its features?
A14. Amazon API Gateway provides developers with a simple, flexible, fully managed, pay-as-you-go service that handles all aspects of creating and operating robust APIs for application back ends. With API Gateway, you’ll launch new services faster and with reduced investment so you’ll specialize in building your core business services.

Its benefits are: