AWS Chapter 7 Compute

What is the function of an EC2 AMI?

• To define the hardware profile used by an EC2 instance

• To serve as an instance storage volume for high volume data processing operations

• To serve as a source image from which an instance's primary storage volume is built

• To define the way data streams are managed by EC2 instances

Where can you find a wide range of verified AMIs from both AWS & 3rd party vendors?

• AWS Marketplace

• Quick Start

• Community AMIs

• My AMIs

Which of the following could be included in an EC2 AMI? (Select TWO)

• A network configuration

• A software application stack

• An operation system

• An instance type definition

Which of the following are EC2 instance type families? (Select TWO)

• c2d.18xlarge

• Compute Optimized

• t2.micro

• Accelerated computing

Which of the following describes an EBS volume?

• A Software stack archive packaged to make it easy to copy & deploy to an EC2 instance

• A virtualized partition of a physical storage drive that's directly connected to an EC2 instance it's associated with

• A virtualized partition of a physical storage drive that's not directly connected to the EC2 instance it's associated with

• A storage volume that's encrypted for greater security

Why might you want to use an instance store volume with your EC2 instance rather than a volume from the more common EBS service?(Select TWO)

• Instance store volumes can be encrypted

• Instance store volumes, data will survive an instance shutdown

• Instance store volumes provide faster data read/write performance

• Instance store volumes are connected directly to your EC2 instance

Your web application experiences periodic spikes in demand that require the provisioning of extra instances. Which of the following pricing models would make the most sense for those extra instances?

• Spot

• On-demand

• Reserved

• Dedicated

Your web application experiences periodic spikes in demand that require the provisioning of extra instances. Which of the following pricing models would make the most sense for the "basic" instances that will run constantly?

• Spot

• On-Demand

• Spot fleet

• Reserved

Which of the following best describes what happens when you purchase an EC2 reserved instance?

• Charges for any instances you run matching the reserved instance type will be covered by reservation

• Capacity matching the reserved definition will be guaranteed to be available whenever you request it

• Your account will immediately and automatically be billed for the full reservation amount

• An EC2 instance matching your reservation will automatically be launched in selected AWS region.

Answer explanation

C - wrong answer because it really means "all upfront" and there are other options

Which of the following use cases are good candidates for spot instances? (Select TWO)

• Big data processing workloads

• ECommerce websites

• Continuous integration development environments

• Long-term, highly, scalable, content-rich websites