What is EC2?
Amazon EC2 or Elastic Compute Cloud enables businesses to run their applications on the cloud. It is a Virtual Machine hosted in the cloud to which the business has an operating system-like control. It is a cloud-based server similar to an on-premises server, with all-time control so that you can access it at any time and from anywhere.
Tell us about Snowball.
Snowball is a solution for data transfer that helps in the secure transfer of petabytes of data into and out of the AWS cloud. With the help of Snowball, the data can be transferred with security, at affordable cost, and in less time.
What is cloudwatch in AWS?
Cloudwatch is a monitoring service that helps to keep track of AWS services, hybrid services, and on-premises applications. It helps in collecting performance and operational data and provides actionable insights with which businesses can optimize operations and understand operational health. It keeps an eye on the complete stack and triggers alarms to automate actions and reduce the time for resolution. Thus, important business time is freed up and business can focus on growth.
Name three basic cloud services. Mention AWS products built using them.
The three basic cloud services are Computing, Networking, and Storage. Below are the AWS products built using these services:
AWS auto-scaling helps in monitoring business applications and adjusting their capacity as needed to keep the performance steady and predictable. It also helps in achieving this in a cost-effective manner. Moreover, with AWS auto-scaling, businesses can scale applications across multiple resources in just a few minutes.
Mention the main components of AWS?
The main components of AWS are as follows:
Explain geo-targeting in CloudFront.
AWS services are connected via AWS CloudFront. This increases the speed and performance of Amazon cloud services. Geo-targeting in CloudFront is its ability to identify the origin country of a user and provide the developer or the business with the country code in the CloudFront-Viewer-Country header. Businesses can then send targeted or specific responses to users without needing country-specific URLs.
Tell us about AWS Lambda.
AWS Lambda is a compute service that is event-driven and does not require a server. It can run codes for almost all types of applications without managing servers. It is available for more than 200 AWS services and SaaS applications in a pay-per-use model.
What is AMI?
AMI or Amazon Machine Image provides the information, about the operating system, applications, etc., that is needed to launch an instance. One must specify the AMI when launching an instance. For multiple instances with the same configuration, the developer can use the same AMI to launch those instances. Similarly, for multiple instances with different configurations, the developer can use different AMIs to launch different instances.
By default, how many buckets can you create in AWS?
In every AWS account, one can create 100 buckets by default.
What is a T2 instance in AWS?
T2 instances are low-cost instance types for general use. They provide base-level CPU performance but can provide bursts above the baseline. They work best where full CPU capacity is not needed constantly and is only needed to burst higher CPU performance.
The above set of AWS interview questions and answers should get you started with your interview preparation. These AWS interview questions offer you a quick overview of some of the important AWS concepts.
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