EC2 Flashcards
What is instance is the cheapest and is suitable for non-critical and infrequent jobs that can be interrupted or process again?
Spot Instances
What instance type is the highest cost and you would use for workloads that require uninterrupted processing or short term workloads that cannon be interrupted?
On-Demand Instances
What instance type has the following:
- For mission critical applications
- Uninterruptible
- Cheaper than on demand and slightly more than spot
- Commitment time of minimum of 1 year to 3 years
Reserved instances
What uses a single, physical rack-mounted server or also know as a host?
Dedicated host
Regulat virtual machines that run in a virtual private cloud (VPC) on hardware that’s dedicates to a single customer
Dedicated instance
A flexible pricing model in AWS that helps you save on the usage of your:
EC2
Forgave
Lambda
Provides discount in exchange for a commitment to a consistent usage amount that is measured in dollars per hour for a one or three year term
Savings Plan
Allows you to reserve capacity for your EC2 instances in a specific AZ
Independent of the billing discounts offered by Savings Plans or regional Reserved Instances
Works like a Zonal Reserved Instance
No 1 year or 3 year commitment
You can reserve a particular AZ only (Zonal), no Regional reservations in scope
Can be applied to On Demand EC2 Instances
Capacity Reservation
Provide low-latency network performance and high throughput
Cluster
Commonly used on large distributed and replicated workloads, such as Hadoop,Cassandra, and Kafka
Partition
Reduces correlated failures and improves availability
Spread