Monday, 19 March 2018

AWS Tutorial Terminology page 1

AWS Tutorial Terminology page 1

Question: what is lightsail in AWS?
Lightsail is designed to be the easiest way to launch and manage a virtual private server(VPS) with AWS.
With Amazon Lightsail, you can deploy a VPS with just a few clicks using preconfigured templates for your favorite Linux distribution application.


Question: What is Amazon Elastic Container Service?
Amazon Elastic Container Service (Amazon ECS) is a highly scalable, fast, container management service that makes it easy to run, stop, and manage Docker containers on a cluster.

Amazon ECS lets you launch and stop container-based applications with simple API calls.


Question: What are Features of Amazon ECS?
  1. Cost-efficient
  2. Improved Compatibility
  3. More Secure



Question: What is Lambda?
AWS Lambda is a compute service that lets you run code without managing servers.
AWS Lambda executes your code only when needed and scales automatically, from a few requests per day to thousands per second.


Question: What is Elastic beanstack?
AWS Elastic Beanstalk makes it even easier for developers to quickly deploy and manage applications in the AWS Cloud.


Question: What is Amazon CloudWatch?
Amazon CloudWatch is a monitoring service for cloud resources and the applications.


Question: What is Amazon CloudTrail?
AWS CloudTrail is a web service that records AWS API calls for your account and delivers log files to you.


Question: What is Amazon Autoscaling?
An AWS service that can launch Amazon EC2 instances automatically as per traffic and stop the EC2 instances when traffic decrease.


Question: What is AWS CloudFormation?
AWS CloudFormation is a service that helps you model and set up your AWS resources so that you can spend less time managing resources and more time focusing on your applications.


Question: What is Amazon OpsWorks?
AWS OpsWorks is a configuration management service that helps you configure and operate applications in a cloud.


Question: What is AWS Service Catalog?
AWS Service Catalog allows organizations to create and manage catalogs of IT services that are approved for use on AWS.


Question: What is AWS Trusted Advisor?
It is Web Service which monitor your account and gives suggestions regarding below:

1) Security
2) Cost Optimization
3) Performance
4) Fault Tolerance
5) Service Limits



Question: What is AWS Managed Service Provider?
AWS Managed Service Provider (MSP) Partners are skilled at cloud infrastructure/application migration, and deliver value to customers by offering proactive monitoring, automation, and management.


Question: What is AWS EFS?
Amazon EFS provides simple, scalable file storage for use with Amazon EC2 instances in the AWS Cloud.
Amazon EFS, storage capacity is elastic, growing and shrinking automatically as you add and remove files.


Question: What is Amazon Glacier?
Amazon Glacier is an online file storage web service that provides storage for data archiving and backup. this is very-ver cheap as compare to S3 and EFS but it is not available everytime.
When you request for data in Amazon Glacier, data will available after 3-4 hours.


Question: What is Storage Gateway?
AWS Storage Gateway is a hybrid storage service that enables your on-premises applications to seamlessly use AWS cloud storage.
You can use for archiving and backup, recovery, cloud bursting, storage tiering, and migration.




Question: What is Elastic transcoder?
Amazon Elastic Transcoder lets you convert media files that stored in S3 into media files in the formats required by client devices.
For example
You have upload the audio file in AWS S3, you can play the audio in all the application (IOS/Android).


Question: What is Amazon Kinesis Video Streams?
Amazon Kinesis Video Streams makes it easy to securely stream video from connected devices to AWS for analytics, machine learning and other processing.


Question: What are Benefits of Kinesis Video Streams?
  1. Stream video from millions of edge devices
  2. Easily build vision-enabled apps
  3. Secure
  4. Durable, Searchable storage
  5. No infrastructure to manage
  6. Build both real-time and batch applications



Question: What is ElastiCache?
ElastiCache is a web service that makes it easy to set up, manage, and scale a distributed in-memory data store or cache environment in the cloud.


Question: What is AWS MFA?
Full form of MFA is Multi-Factor Authentication.
MFA adds an extra layer of protection on top of your username and password in Login.




Question: What Is IAM? - AWS Identity and Access Management?
Full form of IAM is AWS Identity and Access management.
IAM would have following component
  1. IAM Groups: An IAM group is a collection of IAM users.
  2. IAM Users: A user which is going to use access the credentials.
  3. IAM Roles: An IAM role is very similar to a user but does not have credentials.An IAM user can assume a role to temporarily take on different permissions for a specific task.
  4. Temporary Credentials: Temporary credentials are primarily used with IAM roles. User can request temporary credentials that have a more restricted set of permissions than your standard IAM user.



Question: What are IAM roles?
IAM roles are a secure way to grant permissions to entities that you trust.


Question: Question: What is ARN?
An Amazon Resource Name (ARN) is a file naming convention used to identify a particular resource in the Amazon Web Services (AWS).
ARNs, which are specific to AWS, help an administrator track and use AWS items and policies across AWS products and API calls.


Question: Question: Difference between Scaling up and Scaling out?
Scaling up is when you change the instance types within your Auto Scaling Group to a higher type (for example: changing an instance from a m4.large to a m4.xlarge), scaling down is to do the reverse.
Scaling out is when you add more instances to your Auto Scaling Group and scaling in is when you reduce the number of instances in your Auto Scaling Group.


Question: Question: Difference between SNS and SQS?
Both are Messaging Services in AWS.
SNS is push type notification whereas SQS is Pull type notification.


Question: Question: What is Mounting?
Mounting is the act of associating a storage device to a particular location.


Question: How to get the URL of meta data?
http://169.254.169.254/latest/meta-data/


Question: What is Load balancing?
Load balancing distributes incoming application traffic and scales resources to meet traffic demands.


Question: How does Load balancing works?
The load balancer serves as a single point(e.g www.example.com) for clients, which increases the availability of your application.
You can add and remove instances (application server) from your load balancer as your needs change, without disrupting the overall flow of requests.
Question: From where we can Accessing Elastic Load Balancing?
  1. AWS Management Console
  2. AWS Command Line Interface (AWS CLI)
  3. AWS SDKs
  4. Query API



Question: What are different type of Load balancer?
  1. Application Load Balancers
  2. Network Load Balancers
  3. Classic Load Balancers.



Question: What is Application Load Balancers?
We use Application Load Balancer for your web applications with HTTP and HTTPS traffic.
Operating at the request level, Application Load Balancers provide advanced routing, TLS termination and visibility features targeted at application architectures, including microservices and containers.


Question: What is Network Load Balancer?
We use Network Load Balancer for ultra-high performance and static IP addresses for your application.
Operating at the connection level, Network Load Balancers are capable of handling millions of requests per second while maintaining ultra-low latencies.


Question: What is Classic Load Balancer?
We use Classic Load Balancer for existing application running in the EC2-Classic network.


Saturday, 24 February 2018

Amazon Web Service tutorial for beginners

Amazon Web Service tutorial for beginners

Question: What is Amazon EC2?
Full form of Amazon EC2 is Amazon Elastic Compute Cloud.
Amazon EC2 is a web service that provides secure, resizable compute capacity in the cloud.
You can use EC2 to launch as many as virtual servers as you need, and configure security and networking and manage storage.
EC2 enables you to scale up resource as per your requirements.


Question: What are features of Amazon EC2?
  1. Create instances (Virtual computing)
  2. Preconfigured templates for your instances.
  3. Configurations of CPU, memory, storage, and networking capacity for your instances, known as instance types
  4. Secure login information for your instances using key pairs
  5. Firewall Setting that enables you to specify the protocols, ports, and source IP ranges that can reach your instances
  6. Static IPv4 addresses for dynamic cloud computing, known as Elastic IP addresses



Question: What is Full form of Amazon ECS?
Full form of Amazon ECS is Amazon Elastic Container Service.
Amazon ECS is highly scalable, fast, container management service that is easy to manage containers.


Question: What are Feature of ECS?
Amazon ECS is a regional service that running application containers in a highly available manner across multiple Availability Zones within a region.
You can create Amazon ECS clusters within a new or existing VPC.


Question: What is Lambda?
Amazon Lambda is web service that runs code in response to events and automatically manages the compute resources required by that code.


Question: What Is Amazon Batch?
Amazon Batch enables you to run batch computing workloads on the Amazon Cloud.
Batch computing is a common way for engineers to manage large amounts of compute resources.


Question: What are components of Amazon Batch?
  1. Jobs
  2. Job Definitions
  3. Job Queues
  4. Compute Environment



Question: What is Amazon Elastic Beanstalk?
It is Service which can quickly deploy and manage applications in the Amazon Cloud.
Elastic Beanstalk automatically handles the details of capacity, load balancing, scaling, and application health monitoring.
Elastic Beanstalk supports applications developed in Java, PHP, .NET, Node.js, Python, and Ruby etc.


Question: What is Amazon Lightsail?
Lightsail is designed to be the easiest way to launch and manage a virtual private server (VPS).



Question: What is Amazon S3?
Full form of S3 is Amazon Simple Storage Service.
Amazon S3 is a web service which provides storage Service through web services interfaces.



Question: What is Amazon EFS?
Full form of Amazon EFS is Amazon Elastic File System.
EFS provides simple, scalable file storage for use with Amazon EC2 instances.



Question: What is Amazon Glacier?
Amazon Glacier is an online file storage web service that provides storage for data archiving and backup.


Question: What is Amazon Storage Gateway?
Amazon Storage Gateway is a service that connects an on-premises software appliance with cloud-based storage to provide seamless and secure integration in the cloud.



Question: What is Relational Database Service?
Amazon Relational Database Service (Amazon RDS) makes it easy to set up, operate, and scale a relational database in the cloud.



Question: What is AWS DynamoDB?
Amazon DynamoDB is a fully managed NoSQL database service that provides fast and predictable performance with seamless scalability.



Question: What is AWS ElastiCache?
ElastiCache is a web service that makes it easy to set up, manage, and scale a distributed in-memory data store in the cloud.



Question: What is Amazon Redshift?
Redshift is Web service which offers fast query performance using the same SQL-based tools and business intelligence applications.


Question: What is Elastic IP addresses in aws?
An Elastic IP address is a static IPv4 address designed for dynamic cloud computing.
An Elastic IP address is associated with your AWS account.
With an Elastic IP address, you can mask the failure of an instance by rapidly remapping the address to another instance in your account.



Question: What is IPv4?
Internet Protocol Version 4 (IPv4) is the fourth revision of the Internet Protocol and a widely used protocol in data communication over different kinds of networks.



Question: What is difference between IPv4 and IPv6?
Internet Protocol Version 4 (IPv4) is the fourth revision of the Internet Protocol where as IPv6 is the sixth revision to the Internet Protocol and the successor to IPv4



Question: What is EC2 instance in aws?
An EC2 instance is a virtual server in Amazon's Elastic Compute Cloud (EC2) for running applications on the Amazon Web Services (AWS) infrastructure.



Question: What is volume in aws?
An Amazon EBS volume is a durable, block-level storage device that you can attach to a single EC2 instance.
You can use EBS volumes as primary storage for data that requires frequent updates, such as the system drive for an instance or storage for a database application.



Question: What is Amazon EC2 Dedicated Hosts?
An Amazon EC2 Dedicated Host is a physical server with EC2 instance capacity fully dedicated to your use.
Dedicated Hosts can help you address compliance requirements and reduce costs by allowing you to use your existing server-bound software licenses.

Question: What is EBS Snapshots?
We back up the data on Amazon EBS volumes to Amazon S3 by taking point-in-time snapshots.
Snapshots are incremental backups, which means that only the blocks on the device that have changed after your most recent snapshot are saved.



Question: What is Elastic Load Balancing?
Elastic Load Balancing distributes incoming application traffic across multiple EC2 instances, in multiple Availability Zones.
The load balancer serves as a single point of contact for clients(like browser), which increases the availability of your application.
You can add and remove instances from your load balancer as your needs change, without disrupting the overall flow of requests to your application



Question: What Is Amazon VPC?
Amazon Virtual Private Cloud (Amazon VPC) enables you to launch AWS resources into a virtual network.
This virtual network closely resembles a traditional network that you'd operate in your own data center, with the benefits of using the scalable infrastructure of AWS.



Question: What is security groups in aws?
A security group acts as a virtual firewall that controls the traffic for one or more instances. When you launch an instance, you associate one or more security groups with the instance.
You add rules to each security group that allow traffic to or from its associated instances.