Cloud test 1 Flashcards
What is the cloud?
On-demand delivery of IT resources over the Internet with pay-as-you-go pricing.
What is the value prop of the cloud?
A virtual server in Amazon Web Services
SaaS (Software as a Service)
Service)
A form of cloud computing where a firm subscribes to a third-party software and receives a service that is delivered online.
IaaS (Infrastructure as a Service)
IaaS (Infrastructure as a Service)
A method that provides network resources such as for storage and allow the client can deploy software and add network components such as firewalls.
PaaS (Platform as a Service)
A method that enables infrastructure and tools from the service provider so that the client does not need to manage them.
CloudFront
provides a way to distribute content with low latency and high data transfer speeds, delivering content to end-users using a global network of edge locations.
Virtual Machine
Computer running on another machine. It’s software that acts like a separate computer, running its own operating system and programs, but it’s all happening inside your actual computer.
RDS (Relational Database Service)
Amazon Relational Database Service is a distributed relational database service by Amazon Web Services. It is a web service running “in the cloud” designed to simplify the setup, operation, and scaling of a relational database for use in applications.
EC2 (Elastic Cloud Complute)
allows users to rent virtual computers on which to run their own computer applications.
Lambda
Serverless platform as a service service. Way for you to run small pieces of code without having to maintain a server
API Gateway
a fully managed service that makes it easy for developers to create, publish, maintain, monitor, and secure APIs at any scale.
VPC (Virtual Private Cloud)
A private network segment made available to a single cloud consumer on a public cloud.
Subnet
a subdivision of a network that is created either to conserve addresses or to support specific network requirements.
NACL (Network Access Control List)
an optional layer of security for your VPC that acts as a firewall for controlling traffic in and out of one or more subnets.
Note: act at the subnet level, but security groups act at the instance level.
Security Groups
Virtual firewall that controls inbound and outbound traffic to and from the instance.
AWS Availability Zone
A collection of one or more data centers. Three or more AZs make up a Region.
AWS Region
A physical location in the world where we have multiple availability zones
Cloud Native
Applications developed specifically for cloud platforms
Cloud Migration
The process of transitioning all or part of a company’s data, applications, and services from on-site premises behind the firewall to the cloud, where the information can be provided over the Internet on an on-demand basis.
IP (Internet Protocol) address
Every computer connected to the internet is assigned a unique number known as an internet Protocol (IP) address. Since these numbers are usually assigned in country based blocks, an IP address can often be used to identify the country from which a computer is connecting to the internet. It is not possible to tell the exact address of an individual using the IP address.
Public Subnet
a subnet that is accessible from the internet
Private Subnet
a subnet that is not accessible from the internet
DynamoDB
a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale.
Serverless Computing
A type of cloud computing where a third-party vendor manages servers, replication, fault-tolerance, computing scalability, and certain aspects of security, freeing software developers to focus on building “Business Solutions” and eliminating the need to spend time and resources managing the technology complexity of much of the underlying “IT Solution.”
S3 (Simple Storage Service)
is a web service offered by Amazon Web Services. It provides storage through web services interfaces
DNS (Domain Name System)
The Internet’s system for converting alphabetic names into numeric IP addresses.
Internet Gateway (IGW)
Allows access to the Internet from Amazon VPC
Classless Inter-Domain Routing (CIDR)
A way of allocating IP addresses and routing Internet Protocol packets. It was intended to replace the prior classful IP addressing architecture in an attempt to slow the exhaustion of IPv4 addresses.
Port
a communication endpoint that is used to identify specific processes or services on a host device within a network.
Well-Architected Framework
- Operational Excellence
- Security
- Reliability
- Performance Efficiency
- Cost Optimization
