AWS Cloud Practitioner Flashcards
What is EC2?
Elastic Compute Cloud, which is an environment that means space is volatile and changes as the need of the application changes.
What is the AMI?
The Amazon Machine Image which determines what software comes loaded on your cloud instance (i.e., Linux)
What is EBS?
Elastic Block Store which can be used as storage on a HDD or SDD. The type is determined based on your needs on how you need to access and use your data.
What is Amazon S3?
Data stored in the cloud that is not associated to any server (therefore you do not need to configure it to specifications).
In S3 how do you store a file?
you declare the object (the file itself), name a bucket where it will reside, and then generate a key (text path) that says where it will be stored.
What is an availability zone?
A physical group of servers that are connected via a fast, low latency connection. These centers have their own power source so they provide redundancy should one go offline, assuming multiple availability zones are deployed.
What is AWS Lambda?
Lambda is an event-driven service that runs codes when certain events are triggered. This can be used on live or historic data and is billed based on event amounts and microseconds the code is run.
What is Elastic Beanstalk?
A service that allows you to load and deploy your applications on AWS.
What is Amazon SNS?
Simple Notification Service that allows your instance of AWS to send notifications to multiple people for different systems.
What is CloudWatch?
Service that monitors cloud usages like CPU usage and metrics. These metrics are used to trigger notification and autoscaling events (i.e., like a Lambda function).
CloudWatch also creates and stores activity logs.
What is AWS CloudFront?
Amazon CloudFront is a content delivery network (CDN) offered by Amazon Web Services. Content delivery networks provide a globally-distributed network of proxy servers which cache content, such as web videos or other bulky media, more locally to consumers, thus improving access speed for downloading the content.
What is Cloud Formation?
A service that reads template files and constructs those resources in a “stack” of resources.
What are the pillars of AWS Architecture?
Security Reliability Performance Efficiency Cost Optimization Operational Excellence
What is “fault tolorance”?
The ability of a system to remain operational even if certain components of that system fails.
What is “high availability”?
The concept that a system is always functional.
