2026 FINAL REVIEW PACK COMPLETE
QUESTION SET AND CORE CONCEPT
SUMMARY
◉ Amazon EC2 Instances Types (5). Answer: General Purpose
Compute Optimized
Memory Optimized
Accelerated computing
Storage optimized
◉ Amazon EC2; General Purpose Instances (4). Answer: application
servers
gaming servers
backend servers for enterprise applications
small and medium databases
◉ Amazon EC2; Compute Optimized. Answer: is ideal for compute-
bound applications that benefit from high-performance processors.
,◉ Amazon EC2; Memory Optimized. Answer: is designed to deliver
fast performance for workloads that process large
datasets/databases in memory
◉ Amazon EC2; Accelerated computing. Answer: use hardware
accelerators, or coprocessors, to perform some functions more
efficiently than is possible in software running on CPUs
◉ Amazon EC2; Storage optimized. Answer: designed for workloads
that require high, sequential read and write access to large datasets
on local storage
◉ Amazon EC2; Pricing Types (5). Answer: On-Demand
Reserved instances
EC2 Instance Savings Plans
Spot Instances
Dedicated Hosts
◉ Amazon EC2 Pricing; On-Demand- (3 Definition points). Answer:
*ideal for short-term, irregular workloads that cannot be
interrupted.
*No upfront costs or minimum contracts apply.
*The instances run continuously until you stop them, and you pay
for only the compute time you use.
,◉ Amazon EC2 Pricing; Reserved instances (2). Answer: *Standard
Reserved Instances
if you know the EC2 instance type and size you need for your
steady-state applications and in which AWS Region you plan to run
them.
*Convertible Reserved Instances
If you need to run your EC2 instances in different Availability Zones
or different instance types
◉ Amazon EC2 Pricing; EC2 Instance Savings Plans (Contract and
Savings %). Answer: * 1-year or 3-year term
* 72 percent compared to On-Demand rates.
Any usage up to the commitment is charged at the discounted
Savings Plans rate
Any usage beyond the commitment is charged at regular On-
Demand rates.
◉ Amazon EC2 Pricing; Spot Instances. Answer: *workloads with
flexible start and end times, or that can withstand interruptions.
*use unused Amazon EC2 computing capacity and offer you cost
savings at up to 90% off of On-Demand prices.
, ◉ Amazon EC2 Auto Scaling Types (5). Answer: desired capacity
predictive scaling
dynamic scaling
minimum capacity
maximum capacity
◉ Amazon EC2 Auto Scaling Definition. Answer: enables you to
automatically add or remove Amazon EC2 instances in response to
changing application demand.
◉ Amazon EC2 Auto Scaling; dynamic. Answer: esponds to changing
demand.
◉ Amazon EC2 Auto Scaling; predictive. Answer: automatically
schedules the right number of Amazon EC2 instances based on
predicted demand.
◉ Amazon EC2 Auto Scaling; minimum. Answer: is the number of
Amazon EC2 instances that launch immediately after you have
created the Auto Scaling group.
◉ Amazon EC2 Auto Scaling; desired. Answer: What is the ideal
capacity to run the application