Aws Free tire Details

AWS Free Tire Account Details

AWS Marketplace offers free and paid software products that run on the AWS Free Tier. If you qualify for the AWS Free Tier, you can use these products on an Amazon EC2 t2.micro instance for up to 750 hours per month and pay no additional charges for the Amazon EC2 instance (during the 12 months).

These free tier offers do not automatically expire at the end of your 12 month AWS Free Tier term and are available to all AWS customers.

AWS Free Tier (12 Month Introductory Period):

These free tier offers are only available to new AWS customers, and are available for 12 months following your AWS sign-up date. When your 12 month free usage term expires or if your application use exceeds the tiers, you simply pay standard, pay-as-you-go service rates (see each service page for full pricing details). Restrictions apply; see offer terms for more details.

Elastic Compute Cloud (EC2)

750 hours of Amazon EC2 Linux t2.micro instance usage (1 GiB of memory and 32-bit and 64-bit platform support) – enough hours to run continuously each month*

Amazon Simple Storage Service (S3)

5 GB of Amazon S3 standard storage, 20,000 Get Requests, and 2,000 Put Requests*

Amazon Elastic File System (EFS)

5 GB per month of Amazon EFS capacity free*

Amazon Relational Database Service (RDS)

750 hours of Amazon RDS Single-AZ db.t2.micro Instances,for running MySQL, PostgreSQL, MariaDB, Oracle BYOL or SQL Server (running SQL Server Express Edition) – enough hours to run a DB Instance continuously each month*

Amazon Cloud Directory

1GB of storage per month*

10,000 write requests per month*

100,000 read requests per month*

Amazon Connect

90 minutes per month of Amazon Connect usage*

A local direct inward dial (DID) number for the AWS region*

30 minutes per month of local (to the AWS region) inbound DID calls*

30 minutes per month of local (to the AWS region) outbound calls*

For US regions, a US toll-free number for use per month and 30 minutes per month of US inbound toll-free calls*

Amazon GameLift

125 hours per month of Amazon GameLift c4.large.gamelift On-Demand instance usage*

50 GB EBS General Purpose (SSD) storage*

For More details for AWS free tire visit: https://aws.amazon.com/free/ 

Content Reference:- https://aws.amazon.com/free/

Aws news update

Amazon Kinesis Data Analytics for Java Now Supports AWS CloudFormation

You can now use AWS CloudFormation templates to model and provision Amazon Kinesis Data Analyticsfor Java applications using version 2 of the Kinesis Data Analytics API. This improvement enables you to use AWS CloudFormation to deploy Kinesis Data Analytics applications in a safe and repeatable manner.  

Amazon Kinesis Data Analytics is the easiest way to analyze streaming data, gain actionable insights, and respond to your business and customer needs in real-time. With Kinesis Data Analytics, SQL users and Java developers build streaming applications to transform and analyze data in real-time. AWS CloudFormation provides a common language for you to describe and provision all the infrastructure resources in your cloud environment. You can now use AWS CloudFormation to provision Java applications in Kinesis Data Analytics. 

AWS CloudFormation support for Kinesis Data Analytics for Java is available now, in all regions where Kinesis Data Analytics for Java is available. You can learn more here. 

Reference : https://aws.amazon.com/about- aws/whats-new/2019/02/amazon-kinesis-data-analytics-for-java-now-supports-aws-cloudformation/

Aws news update

Announcing Updated Professional-Level AWS Certification Exams

We've updated our Professional-level AWS Certification exams to reflect new features, services, and best practices. AWS releases a growing number of new features and services each year, so we periodically update and restructure our exams to be sure we are validating the latest skills.

The updated AWS Certified Solutions Architect – Professional exam validates advanced technical skills and experience in designing distributed applications and systems on the AWS platform. It now covers five domains: design for organization complexity, design for new solutions, migration planning, cost control, and continuous improvements for existing solutions. The exam is recommended for solutions architects with two or more years of hands-on experience designing and deploying cloud architecture on AWS.

The updated AWS Certified DevOps Engineer – Professional exam validates technical expertise in provisioning, operating, and managing distributed applications systems on the AWS platform. It now covers six domains: SDLC automation; configuration management and infrastructure as code; monitoring and logging; policies and standards automation; incident and event response; and high availability, fault tolerance, and disaster recovery. The exam is recommended for DevOps engineers with two or more years of experience provisioning, operating, and managing AWS environments.

We now only recommend, rather than require, that candidates have an Associate-level certification before taking Professional-level exams. See our updated exam guides to learn more about each exam and find resources to help you prepare. Professional-level exams are currently available in English or Japanese for 300 USD. Register today! 

Content reference:- https://aws.amazon.com/about-aws/whats-new/2019/02/updated-professional-level-aws-certification-exams/

Aws news update

Deploy a Kubernetes Cluster Using Amazon EKS with New Quick Start

This Quick Start automatically deploys a Kubernetes cluster that uses Amazon Elastic Container Service for Kubernetes (Amazon EKS), enabling you to deploy, manage, and scale containerized applications running on Kubernetes on the Amazon Web Services (AWS) Cloud. The deployment takes about 25 minutes. Amazon EKS runs the Kubernetes management infrastructure for you across multiple AWS Availability Zones to eliminate a single point of failure. Amazon EKS is also certified Kubernetes-conformant.

This reference deployment provides custom resources that enable you to deploy and manage your Kubernetes applications using AWS CloudFormation by declaring Kubernetes manifests or Helm charts directly in AWS CloudFormation templates.

This Quick Start is intended for users who are looking for a repeatable, customizable reference deployment for Amazon EKS using AWS CloudFormation.

To get started:

View the architecture and details

View the deployment guide for step-by-step instructions

Download the AWS CloudFormation templates that automate the deployment

For additional AWS Quick Start reference deployments, see catalog.

Content Reference:- https://aws.amazon.com/about-aws/whats-new/2019/02/deploy-a-kubernetes-cluster-using-amazon-eks-with-new-quick-start/

Aws most popular interview questions

Aws most popular interview questions

1.] Explain what is AWS ? 
◆ : AWS attains as Amazon Web Service; this is a gathering of remote computing settings also identified as cloud computing policies. This unique realm of cloud computing is also recognized as IaaS or Infrastructure as a Service. (Top 50 AWS Interview Questions and Answers Pdf)
2.] What are the key components of AWS ?
◆ : The fundamental elements of AWS are
• Route 53: A DNS web service
• Easy E-mail Service: It permits addressing e-mail utilizing RESTFUL API request or through normal SMTP
• Identity and Access Management: It gives heightened protection and identity control for your AWS account
• Simple Storage Device or (S3): It is a warehouse equipment and the well-known widely utilized AWS service
• Elastic Compute Cloud (EC2): It affords on-demand computing sources for hosting purposes. It is extremely valuable in trouble of variable workloads
• Elastic Block Store (EBS): It presents persistent storage masses that connect to EC2 to enable you to endure data beyond the lifespan of a particular EC2
• CloudWatch: To observe AWS sources, It permits managers to inspect and obtain key Additionally, one can produce a notification alert in the state of crisis.
3.] Explain what is S3 ?
◆ : S3 holds for Simple Storage Service. You can utilize S3 interface to save and recover the unspecified volume of data, at any time and from everywhere on the web. For S3, the payment type is “pay as you go”.
4.] What does an AMI include ?
◆ : An AMI comprises the following elements
• A template to the source quantity concerning the instance
• Launch authorities determine which AWS accounts can avail the AMI to drive instances • A base design mapping that defines the amounts to join to the instance while it is originated.
5.] How can you send request to Amazon S3 ?
◆ : Amazon S3 is a REST service, you can transmit the appeal by applying the REST API or the AWS SDK wrapper archives that envelop the underlying Amazon S3 REST API.

Aws most popular interview questions

Aws most popular interview questions

1】. What are the important features of a classic load balancer in EC2 ? 

● The high availability feature ensures that the traffic is distributed among EC2 instances in single or multiple availability zones.This ensures high scale of availability for incoming traffic. 

• Classic load balancer can decide whether to route the traffic or not based on the results of health check. 

• You can implement secure load balancing within a network  by creating security groups in a VPC. 

• Classic load balancer supports sticky sessions which ensure that the traffic from a user is always routed to the same instance for a seamless experience. 

2.】 What parameters will you take into consideration when choosing the availability zone ? 

● Performance, pricing, latency, and response time are some of the factors to consider when selecting the availability zone. 

3.】 Which instance will you use for deploying a 4-node Hadoop cluster in AWS ? 

● We can use a c4.8x large instance or i2.large for this, but using a c4.8x will require a better configuration on PC. 

4.】 Will you use encryption for S3 ? 

● It is better to consider encryption for sensitive data on S3 as it is a proprietary technology. 

5.】 How can you send request to Amazon S3 ? 

● Using the REST API or the AWS SDK wrapper libraries which wrap the underlying Amazon S3 REST API. 

Most popular aws interview questions

AWS most popular interview questions

1. What type of performance can you expect from Elastic Block Storage? How do you back it up and enhance the performance?

Performance of elastic block storage varies i.e. it can go above the SLA performance level and after that drop below it. SLA provides an average disk I/O rate which can at times frustrate performance experts who yearn for reliable and consistent disk throughput on a server. Virtual AWS instances do not behave this way. One can backup EBS volumes through a graphical user interface like elasticfox or use the snapshot facility through an API call. Also, the performance can be improved by using a Linux software raid and striping across four volumes.

2. Imagine that you have an AWS application that requires 24x7 availability and can be down only for a maximum of 15 minutes. How will you ensure that the database hosted on your EBS volume is backed up?

Automated backup is the key processes here as they work in the background without requiring any manual intervention. Whenever there is a need to back up the data, AWS API and AWS CLI play a vital role in automating the process through scripts. The best way is to prepare for a timely backup of EBS of the EC2 instance. The EBS snapshot should be stored on Amazon S3 and can be used for recovery of the database instance in case of any failure or downtime. 

3. You create a Route 53 latency record set from your domain to a system in Singapore and a similar record to a machine in Oregon. When a user located in India visits your domain, to which location will he be routed to?

Assuming that the application is hosted on Amazon EC2 instance and multiple instances of the applications are deployed on different EC2 regions. The request is most likely to go to Singapore because Amazon Route 53 is based on latency and it routes the requests based on the location that is likely to give the fastest response possible.

4. Differentiate between on-demand instance and spot instance.

Spot Instances are spare unused EC2 instances which one can bid for. Once the bid exceeds the existing spot price (which changes in real-time based on demand and supply) the spot instance will be launched. If the spot price becomes more than the bid price then the instance can go away anytime and terminate within 2 minutes of notice. The best way to decide on the optimal bid price for a spot instance is to check the price history of the last 90 days that is available on the AWS console. The advantage of spot instances is that they are cost-effective and the drawback is that they can be terminated anytime. Spot instances are ideal to use when –

• There are optional nice to have tasks.
• You have flexible workloads which can be run when there is enough compute capacity.
• Tasks that require extra computing capacity to improve performance.
On-demand instances are made available whenever you require them and you need to pay for the time you use them on an hourly basis. These instances can be released when they are no longer required and do not require any upfront commitment. The availability fo these instances is guaranteed by AWS unlike spot instances.
The best practice is to launch a couple of on-demand instances which can maintain a minimum level of guaranteed compute resources for the application and add-on few spot instances whenever there is an opportunity.

5. How will you access the data on EBS in AWS ?

Elastic block storage as the name indicates provides persistent, highly available and high-performance block-level storage that can be attached to a running EC2 instance. The storage can be formatted and mounted as a file system or the raw storage can be accessed directly.