EC2_SUMMARY Flashcards
EC2
Its a “______” that is hosted in AWS instead of your data center.
Virtual Machine
EC2
Select capacity
When you need it right now.
EC2
Grow and shrink
When needed
EC2
What do you pay for
What you use
EC2
Instead of waiting months you wait
Minutes
EC2 - Pricing
Pay by the hour or the second depending on the type of instance you run and its great for flexibility
On-Demand
EC2 - Pricing
Reserve capacity for one or three years. Up to 72% discount on the hourly charge and great if you have known, fixed requirements.
Reserved
EC2 - Pricing
Purchase unused capacity at a discount of up to 90%. Prices fluctuate with supply and demand and great for apps with flexible start and end times.
Spot
EC2 - Pricing
A physical EC2 server dedicated for your use and it is great if you have server-bound licenses to reuse or compliance requirements.
Dedicated.
EC2
Determines the hardware of the host computer and has different types of compute, memory and storage capabilities and they are grouped into families. You should select an instance type based on the requirements of your application.
Instance Type
EC2
Highly available and scaleable storage volumes that you can attach to an EC2 instance
EBS Volumes
EC2
Suitable for boot disks and general applications.
General Purpose - SSD
GP2
EC2
Up to 16,000 IOPS per volume
General Purpose - SSD
GP2
EC2
Up to 99.9% durability
General Purpose - SSD
GP2
EC2
Suitable for OLTP and latency sensitive applications. High Performance
Provisioned IOPS SSD
IO1
EC2
50 IOPS/GIB
Provisioned IOPS SSD
IO1
EC2
Up to 64,000 IOPS per volume
Provisioned IOPS SSD
IO1
EC2
Up to 99.9% durability
Provisioned IOPS SSD
IO1
EC2
More expensive than GP2
Provisioned IOPS SSD
IO1
EC2
Latest generation Provisioned IOPS volume
Provisioned IOPS SSD
IO2
EC2
Suitable for OLTP and latency apps - high performance
Provisioned IOPS SSD
IO2
EC2
500 IOPS / GIB
Provisioned IOPS SSD
IO2
EC2
Up to 64,000 IOPS per volume.
Provisioned IOPS SSD
IO2
EC2
99.999% durability
Provisioned IOPS SSD
IO2
EC2
Suitable for Big Data, data warehouses, ETL
Throughput Optimized HDD
ST1
EC2
Max throughput is 500 MB/s per volume
Throughput Optimized HDD
ST1
EC2
Cannot be a boot volume
Throughput Optimized HDD ST1 --AND-- Cold HDD SC1
EC2
Up to 99.9% durability
Throughput Optimized HDD ST1 --AND-- Cold HDD SC1
EC2
Max throughput of 250 MB/s per volume
Cold HDD SC1
EC2
A point-in-time copy of an EBS volume that is great for backing up EBS volumes - they can be used to create new EBS volumes
EBS Snapshot
EC2
If you create a new EBS volume from an encrypted snapshot then you will have an
Encrypted volume
EC2
If you create a new EBS volume from an unencrypted snapshot then you will have an
Unencrypted volume
EC2
Intelligent load balancing for HTTP/HTTPS that routes requests to a specific web server based on the request type.
Application Load Balancer
EC2
Provides high-performance load balancing for TCP traffic
Network Load Balancer
EC2
The legacy option that supports both HTTP/HTTPS and TCP traffic.
Classic Load Balancer
EC2
Provides load balancing for third-party virtual appliances.
Gateway Load Balancers
EC2
If you need to find the IPv4 address of your end user then look for this header
X-Forwarded-For
EC2
Error message whereby application is not responding within the timeout period.
504 Error
Gateway Timeout
EC2
Amazon’s DNS service
Route 53
EC2
Route 53 maps domain names to
EC2 Instances
Elastic Load Balancers
S3 Buckets
EC2
A container for DNS records for your domain
Hosted Zone
EC2
Allows you to route traffic address to the zone apex or the top of the DNS name space
Alias
ie ilovecloud.com sent to ELB
EC2
Allows you to route traffic to a resource, such as a web server using an IPv4 address
A Record
EC2
Always give your users the minimum amount of access required to do their job
Least Privilege
EC2
Create IAM groups and assign your users to group. Group permissions are assigned using IAM policy documents
Use Groups
