What is the core concept behind On-Demand EC2 instances? A.)Pay a fixed monthly fee regardless of usage B.)Pay only when you use it — pay-as-you-go C.)Reserve capacity for 1 or 3 years upfront D.)Use AWS's unused servers at discounted rates
Spot Instances use which type of AWS infrastructure to offer steep discounts? A.)Dedicated physical servers B.)Reserved capacity pools C.)AWS's unused/spare compute capacity D.)Scheduled maintenance windows
Which Reserved Instance type allows you to change the instance family, size, or OS during the term? A.)Standard Reserved Instance B.)Scheduled Reserved Instance C.)Capacity Reservation D.)Convertible Reserved Instance
What is a key difference between Capacity Reservation and Standard Reserved Instances? A.)Capacity Reservation gives 90% discount; Standard gives 60% B.)Capacity Reservation guarantees server capacity with no discount — you pay even if unused C.)Standard Reserved gives a capacity guarantee; Capacity Reservation does not D.)Capacity Reservation only works in the US-East-1 region
A server in cloud computing is a virtual machine that runs on a cloud provider’s infrastructure (like AWS, Azure, or Google Cloud) and delivers computing resources over the internet.