Scalability is a characteristic of cloud computing through which increasing workload can be handled by increasing in proportion the amount of resource capacity. Security groups act as a firewall for associated instances, controlling both inbound and outbound traffic at the instance level.ĭescribe, What is the difference between Scalability and Elasticity ? You add rules to each security group that allow traffic to or from its associated instances. When you launch an instance, you associate one or more security groups with the instance. Openswan is an Open Source implementation of ipsec for the Linux OS.IPsec implementation in Linux for creating a tunnel between two private networks through the internet.ĭescribe, What is Amazon EC2 Security Groups ?Ī security group acts as a virtual firewall that controls the traffic for one or more instances. A virtual private cloud (VPC) is an on-demand configurable pool of shared computing resources allocated within a public cloud environment, providing a certain level of isolation between the different organizations (denoted as users hereafter) using the resources.ĭescribe, What are the different types of cloud services ? 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. Amazon EC2’s simple web service interface allows developers to obtain and configure capacity with minimal friction.ĭescribe, What is auto-scaling? How does it work ?Īuto-scaling is a feature of AWS which allows you to configure and automatically provision and spin-up new instances without the need for your intervention.Īmazon Virtual Private Cloud (Amazon VPC) enables you to launch (AWS) Amazon Web Services resources into a virtual network that you’ve defined. It is designed to make web-scale cloud computing easier for developers. T2 instances are designed to provide moderate baseline performance and the capability to burst to higher performance as required by workload.Īmazon describes Elastic Compute Cloud (Amazon EC2) as a web service that provides resizable compute capacity in the cloud. AWS automatically puts your snapshots there. Encryption should be considered for sensitive data, as AWS S3 is a proprietary technology developed by Amazon. You can think of it like FTP storage, where you can move files to and from there, but not mount it like a file system. Describe, What is EC2 instance ?Īn EC2 instance is a virtual server in Amazon’s Elastic Compute Cloud (EC2) for running applications on the Amazon Web Services (AWS) infrastructure. ![]() AWS Interview Questions and Answers – EC2, VPC, S3 and Network and Security.
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