AWS Architect - ashish-ghub/docs GitHub Wiki
On Architecture:
- https://aws.amazon.com/architecture
- https://aws.amazon.com/solutions
- Scaling up the Prime Video audio/video monitoring service and reducing costs by 90%
- Customer Data Platform for Airlines Architecture
- Implementing Travel & Hospitality Data Mesh
Elastic Network Interfaces (ENI) :
https://aws.amazon.com/blogs/aws/new-elastic-network-interfaces-in-the-virtual-private-cloud/
Elastic-ip :
https://aws.amazon.com/premiumsupport/knowledge-center/intro-elastic-ip-addresses/ Issue : I want to have a public IP address for my EC2 instance that will persist even if my instance is stopped and restarted. How do I do that?
Resolution An Elastic IP address is a reserved public IP address that you can assign to any EC2 instance in a particular region, until you choose to release it. To allocate an Elastic IP address to your account in a particular region, see Allocating an Elastic IP Address.
When you associate an Elastic IP address with an EC2 instance, it replaces the default public IP address. If an external hostname was allocated to the instance from your launch settings, it will also replace this hostname; otherwise, it will create one for the instance. The Elastic IP address remains in place through events that normally cause the address to change, such as stopping or restarting the instance.
Note: This description applies to most AWS accounts, which are EC2-VPC by default. If your account is EC2-Classic, see Elastic IP Address Differences for EC2-Classic and EC2-VPC.
FAQ:
VPC: https://docs.aws.amazon.com/vpc/latest/userguide/what-is-amazon-vpc.html https://aws.amazon.com/vpc/faqs/
ec2: https://aws.amazon.com/ec2/faqs/
Storage: https://aws.amazon.com/products/storage/?hp=tile&so-exp=below
S3(Simple storage Service) https://aws.amazon.com/s3/?c=s&sec=srv
Server-less: https://aws.amazon.com/serverless/?hp=tile&tile=solutions
ELB : https://aws.amazon.com/elasticloadbalancing/faqs/?nc=sn&loc=5 https://docs.aws.amazon.com/elasticloadbalancing/latest
cloudwatch https://aws.amazon.com/cloudwatch/faqs/
question sets:
25 questions: https://www.whizlabs.com/blog/aws-solutions-architect-associate-exam-questions/
ELB ( elastic load balancer )
ENI Vs ENA Vs EFA
Elastic Network Interface (ENI) - essentially just a virtual networking card. Comes default with EC2 instances. Use Cases: management network seperate network and security appliances in your VPC dual-home instances with workloads/roles on different subnets create low-budget, high availability solution Enhanced Networking - uses single root I/O virtualization (SR-IOV) to provide high networking capabilities on supported instance types. higher bandwidth, higher packets per second, lower inter-instance latencies. no additional charge, but must be on supported instance types use where you want good network performance
Elastic Network Adapter (ENA) - supports speeds up to 100Gbps Virtual Function (VF) - Intel 82599 supports speeds up to 10Gbps If given option choose ENA over VF on exam
Elastic Fabric Adapter (EFA) - network device that you can attach to EC2 instance to accelerate High Performance Computing (HPC) and machine learning applications EFA provides lower latency and higher throughput than TCP transport used in tradtional HPC systems uses OS-bypass to bypass OS kernal and communicate directly with EFA device used mainly for machine learning applications Not supported on windows, only linux
Reference:
https://docs.aws.amazon.com/AmazonS3/latest/userguide/NotificationHowTo.html