Worksheet 2

1.) A.)AWS as a public:

->Data storage

->Data Archival

>Application Hosting-

>Latency intolerant or mission critical web tiers

->On-demand hosting for microsite and application

->Auto-scaling environment for large applications

B.) AWS as a private:

->Strict security, latency, regulatory and data privacy levels not met by the public cloud.

->Organizations that are highly regulated and need data hosted privately and securely.

->Organizations that are large enough to support the costs.

->Organizations that need high-performance access to a file system, such as media companies.

->Hosting applications that have predictable usage patterns and demand low storage costs.

->Organizations that demand greater adaptability, configurability, and flexibility.

->Hosting business-critical data and applications.

2.)Features of an Ec2 machine:

->Virtual computing environments, known as instances

->Preconfigured templates for your instances, known as Amazon Machine Images (AMIs), that package the bits you need for your server (including the operating system and additional software)

->Various configurations of CPU, memory, storage, and networking capacity for your instances, known as instance types

->Secure login information for your instances using key pairs (AWS stores the public key, and you store the private key in a secure place)

->Storage volumes for temporary data that's deleted when you stop, hibernate, or terminate your instance, known as instance store volumes

->Persistent storage volumes for your data using Amazon Elastic Block Store (Amazon EBS), known as Amazon EBS volumes

->Multiple physical locations for your resources, such as instances and Amazon EBS volumes, known as Regions and Availability Zones

->A firewall that enables you to specify the protocols, ports, and source IP ranges that can reach your instances using security groups

->Static IPv4 addresses for dynamic cloud computing, known as Elastic IP addresses

->Metadata, known as tags, that you can create and assign to your Amazon EC2 resources

->Virtual networks you can create that are logically isolated from the rest of the AWS Cloud, and that you can optionally connect to your own network, known as virtual private clouds (VPCs)