Section 5 - 7 Flashcards
m5.2xlarge
What does each part of this instance type code mean?
m = the instance class
5 = generation (increments by 1)
2xlarge = size within the instance
This port allows you to log into a Linux instance
Port 22, SSH (Secure Shell)
This port allows you to upload files into a file share
Port 21, FTP (File Transfer Protocol)
This port allows me to upload files using SSH
Port 22, SFTP (Secure File Transfer Protocol)
This port is used to access unsecured websites
Port 80, HTTP
This port is used to access secured websites
Port 443, HTTPS
This port is used to log into a Windows instance
Port 3389, RDP (Remote Desktop Protocol)
Batch jobs, data analysis, image processing , distributed workloads. What type of instances are great for these?
Spot instances
Dedicated instances offer your own instances and hardware, but the instances ___ _________ _____________. Dedicated hosts give you access to the __________ ________ and visibility of the lower-level hardware
are placed automatically; physical server
Hotel analogy: Pay a certain amount per hour for a certain period, and stay in any room type (can change)
Savings plan
Hotel analogy: Book the entire building of the resort
Dedicated host
Hotel analogy: Planning ahead, staying for a long time, may get a good discount
Reserved
Hotel analogy: You book a room for a period with full price, even if you don’ stay in it
Capacity reservations
Why would you deselect the “Delete on Termination” checkbox on the root EBS volume?
You can preserve the root volume to save data
What does an EC2 Image builder accomplish?
Automate the creations of virtual machines, container images, or AMIs for EC2 instances
How does Elastic Block Storage (EBS) differ from an Elastic File System (EFS)?
An EBS is limited to a single AZ and can only be attached to a single instance.
Multiple instances can be mounted to a single EFS across multiple availability zones
EFS-IA vs EFS
EFS-infrequent access is for files not accessed every day, it’s a cost saving measure
Amazon FSx has 2 flavours, what are they?
FSx for Windows File Server and FSx For Lustre (Linux)
What is Amazon FSx?
Network file systems
Name this: The system has auto-scaling, will scale based on the required load
Elasticity
Name this load balancer: Static DNS (URL), HTTP / HTTPS / gRPC protocols (Layer 7), HTTP routing features
Application Load Balancer (ALB)
Name this load balancer: Static IP through elastic IP, TCP / UDP protocols (Layer 4), millions of requests per second (high performance)
Network Load Balancer (NLB)
Name this load balancer: Intrusion detection, GENEVE protocol on IP packets (Layer 3), Route Traffic to Firewalls that you manage on EC2 instances
Gateway Load Balancer (GLB)
