Amazon Web Services (AWS) is a secure cloud services platform, delivering compute power, database storage, content delivery and other practicality to assist individuals, organizations, and governments, on a metered pay-as-you-go basis. In easy words, AWS (Amazon Web Services) authorize users to run web and application servers in the cloud to host dynamic websites. AWS securely stores all files on the cloud so that users can access it from anywhere. It uses managed databases such as MySQL, PostgreSQL, Oracle or SQL Server to store information and delivers static and dynamic files quickly around the world using a Content Delivery Network (CDN). AWS is also used for sending bulk email to your customers.
AWS stands for Amazon Web Service; it is a collection of remote computing services also known as a cloud computing platform. This new realm of cloud computing is also known as IaaS or Infrastructure as a Service.
The key components of AWS are
S3 stands for Simple Storage Service. You can use S3 interface to store and retrieve any amount of data, at any time and from anywhere on the web. For S3, the payment model is “pay as you go.”
AMI stands for Amazon Machine Image. It’s a template that provides the information (an operating system, an application server, and applications) required to launch an instance, which is a copy of the AMI running as a virtual server in the cloud. You can launch instances from as many different AMIs as you need.
From a single AMI, you can launch multiple types of instances. An instance type defines the hardware of the host computer used for your instance. Each instance type provides different computer and memory capabilities. Once you launch an instance, it looks like a traditional host, and we can interact with it as we would with any computer.
An AMI includes the following things
Amazon S3 is a REST service, and you can send a request by using the REST API or the AWS SDK wrapper libraries that wrap the underlying Amazon S3 REST API.
By default, you can create up to 100 buckets in each of your AWS accounts.
Yes, you can vertically scale on Amazon instance. For that
T2 instances are designed to provide moderate baseline performance and the capability to burst to higher performance as required by the workload.
With private and public subnets in VPC, database servers should ideally launch into private subnets.
A hybrid cloud. The hybrid cloud architecture is where an organization can use the public cloud for shared resources and the private cloud for its confidential workloads.
EBS-backed instances. EBS-backed instances use EBS volume as their root volume. EBS volume consists of virtual drives that can be easily backed up and duplicated by snapshots. The biggest advantage of EBS-backed volumes is that the data can be configured to be stored for later retrieval even if the virtual machine or the instances are shut down.
Amazon Glacier. AWS Glacier is an extremely low-cost storage service offered by Amazon that is used for data archiving and backup purposes. The longer you store data in Glacier, the lesser it will cost you.
Amazon Snowball. AWS Snowball is the data transport solution for large amounts of data that need to be moved into and out of AWS using physical storage devices.
No, the standby DB instance cannot be used along with the primary DB instances since the standby DB instances are supposed to be used only if the primary instance goes down.
Starting, stopping and terminating are the three states in an EC2 instance, let’s discuss them in detail:
The network performance depends on the instance type and network performance specification, if launched in a placement group you can expect up to
CloudFront is a content delivery network offered by AWS, and it speeds up the distribution of dynamic and static web content such as .css, .js, .html and image files to the users. It delivers the content with low latency and high transfer speed to the users. AWS provides CDN for less price and it suits best for startups.
Virtual Private Cloud (VPC) allows you to launch AWS resources into the virtual network. It allows users to create and customize network configurations according to users’ business requirements.
Network Address Translation (NAT) allows instances to connect in a private subnet with the internet and other AWS services. NAT prevents the internet to have an initial connection with the instances.
Amazon SQS stands for Simple Queue Service, and it manages the message queue service. Using this service, you can move the data or message from one application to another even though it is not in the running or active state. SQS sends messages between multiple services, including S3, DynamoDB, EC2 Instance, and also it uses the Java message queue service to delivery the information. The maximum visibility timeout of a message is 12 hours in the SQS queue.
If you want to have a faster and flexible NoSQL database, then the right thing available is DynamoDB, which is a flexible and efficient database model available in Amazon web services.
Amazon Glacier is one of the most important services provided by AWS. The Glacier is an online web storage service that provides you with low cost and effective storage with security features for archival and data backup. With Glacier, you can store the information effectively for months, years, or even decades.
Redshift is a big data product used as a data warehouse in the cloud. It is the fast, reliable and powerful product of big data warehouse.
A Server load balancer (SLB) provides content delivery and networking services using load balancing algorithms. SLB distributes the network traffic equally across a group of servers to ensure high-performance application delivery.
It is nothing but a reservation of resources for one or three years and utilized whenever you need. The reservation comes on a subscription basis available for a term of 1 year and three years. The hourly rate goes down as the usage increases. Purchasing reservation isn’t just associated with the reservation of resources, but also, it comes with the capacity that is required for a particular zone.
The actual content is cached at the places called edge locations. So whenever a user searches for the content, he will find the same at the edge locations.
AWS Lambda is a computational service that enables you to run code without maintaining any servers. It automatically executes the code whenever needed. You are required to pay for the time that you have used it for. Lambda enables you to run the code virtually for any kind of application without managing any servers.
The average being without a job is rising across job markets. But, when it is concerning software development and software programming, the requirement of AWS professionals are at higher side. AWS candidates having in-depth knowledge and skill-based training in AWS are able discover their smooth ways to attain their career goals. Besides, AWS has occupied the topmost place in the arena of cloud services. An AWS candidate is expected a minimum salary of 35, 000 dollars per annum. Although the salary of an experienced AWS expert can reach to double the figure mentioned before. The salaries are very reliant upon the location, business, and the company’s requirements.
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