AWS Cost Optimization

A cost-optimized workload fully uses all resources, achieves an outcome at the lowest possible price point, and meets your functional requirements

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QUESTION OF

Views #: 264

Questions #: 23

Time: 10 minutes

Pass Score: 80.0%

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Step

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Exam

Practice

The pillars of the AWS Well-Architected Framework are

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Security

Transparency

Operational Excellence

Reliability

Integrity

Performance Efficiency

Cost Optimization

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Correct Answer

Explanation

Cost optimization in the cloud helps your organization achieve five goals

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Practice Cloud Financial Management

Be aware of expenditure and usage

Implement cost effective resources

Manage demand and supply resources

Optimize over time

Build reliable solutions

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Explanation

The five design principles in the AWS Well-Architected Cost Optimization Pillar

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implement Cloud Performance Management

Implement Cloud Financial Management

Adopt a consumption model

Measure overall efficiency

Stop spending money on undifferentiated heavy lifting

Analyze and attribute expenditure

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Correct Answer

Explanation

You are only charged for EBS volumes which are active and attached to EC2 instances

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True

False

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Correct Answer

Explanation

Identify some of the most common areas for cost optimisation in EBS volumes

inactive or unattached EBS volumes when appropriate.
provisioning EBS volumes larger than required.
over-sizing provisioned performance options.
newer volume types when appropriate.
lower-cost volume types when appropriate.

Please drag and drop the selected option in the right place or type it instead

Delete

Avoid

Use

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Correct Answer

Explanation

Which AWS resources will cost you money even if they are not used

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EC2 instances

EC2 AMIs

Snapshot of removed EC2 AMIs

EBS Volumes

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Correct Answer

Explanation

What is the best approaches in provisioning EBS volumes

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Provision a large EBS volume from the beginning based on anticipated future requirements

Provision a small volume size and increase it over time as needed

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Correct Answer

Explanation

Which would be more cost effective?

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Use a standard EBS volume type with large capacity to increase IOPS and throughput performance to meet your requirements

Use a new EBS volume type which can give the same IOPS and throughput but with a smaller volume size

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Explanation

Which EBS volume type allows to increase IOPS performance without increasing the provisioned capacity?

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gp3

io1

io2/io2 Block Express

gp2

st1

sc1

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Correct Answer

Explanation

You can save money by switching from gp2 EBS volume type to gp3 EBS volume type

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True

False

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Correct Answer

Explanation

EBS Snapshots Archive offers you a lower price per GB compared to standard EBS Snapshots

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True

False

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Correct Answer

Explanation

In general, instance stores are cheaper than EBS volumes

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True

False

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Correct Answer

Explanation

To avoid loosing instance store data when you stop the EC2 instance, you can take a snapshot using EBS Snapshots and restore it later when starting the EC2 instance

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True

False

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Correct Answer

Explanation

Choose the elements you need to take into consideration when making your volume type

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What is the minimum actual storage space or volume size needed for the data?

What is the performance profile requirement for IOPS?

What is the performance profile requirement for throughput?

What are the latency requirements?

What are the data durability requirements?

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Correct Answer

Explanation

A cost of an EBS volume is determined by

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EBS volume type

AWS Region a volume type resides

Provisioned volume size

Provisioned IOPS

Provisioned throughput

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Correct Answer

Explanation

With Amazon EBS Snapshots, you pay for the provisioned storage capacity

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True

False

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Correct Answer

Explanation

When you copy EBS Snapshots, you are charged for the data transferred across AWS Regions

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True

False

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Correct Answer

Explanation

Compute Optimizer is a service that analyzes the configuration and utilization metrics of your AWS resources

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True

False

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Correct Answer

Explanation

Under which circumstances should you consider using Amazon Elastic Compute Cloud (Amazon EC2) instance stores?

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When you need to preserve your data for reuse

When your data can easily be recreated

When your data is temporary

When you need sub-millisecond latency

When you require archival copies of your data

When your data needs to be copied between AWS Regions

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Explanation

Which Amazon Elastic Block Store (Amazon EBS) volume types support provisioning IOPS performance separately from the volume size?

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io1 and io2 only

io1, io2, and gp3

gp2 and gp3 only

st1 and io2 only

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Correct Answer

Explanation

Which factors are used to calculate minimum volume size to support a sustained IOPS target for General Purpose and Provisioned IOPS volumes?

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Required minimum sustained IOPS

Throughput to provisioned IOPS ratio

IOPS-to-volume capacity ratio

Required maximum latency

RAID volume type configuration

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Correct Answer

Explanation

Which are some of the cost optimization opportunities with Amazon EBS volumes?

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Use older volume types

Delete unattached EBS volumes

Use io2 volumes for lower sustained IOPS volumes

Provision larger volumes and decrease them over time

Avoid over-sizing provisioned performance

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Correct Answer

Explanation

What is the recommended tool that works with your Amazon CloudWatch historic information to help optimizing your EBS volumes?

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AWS CloudTrail

AWS Control Tower

AWS Compute Optimizer

AWS Proton

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POINTS (1)

Correct Answer

Explanation

Professional Cloud

The pillars of the AWS Well-Architected Framework are

Correct Answer

Explanation

Cost optimization in the cloud helps your organization achieve five goals

Correct Answer

Explanation

The five design principles in the AWS Well-Architected Cost Optimization Pillar

Correct Answer

Explanation

You are only charged for EBS volumes which are active and attached to EC2 instances

Correct Answer

Explanation

Identify some of the most common areas for cost optimisation in EBS volumes

Correct Answer

Explanation

Which AWS resources will cost you money even if they are not used

Correct Answer

Explanation

What is the best approaches in provisioning EBS volumes

Correct Answer

Explanation

Which would be more cost effective?

Correct Answer

Explanation

Which EBS volume type allows to increase IOPS performance without increasing the provisioned capacity?

Correct Answer

Explanation

You can save money by switching from gp2 EBS volume type to gp3 EBS volume type

Correct Answer

Explanation

EBS Snapshots Archive offers you a lower price per GB compared to standard EBS Snapshots

Correct Answer

Explanation

In general, instance stores are cheaper than EBS volumes

Correct Answer

Explanation

To avoid loosing instance store data when you stop the EC2 instance, you can take a snapshot using EBS Snapshots and restore it later when starting the EC2 instance

Correct Answer

Explanation

Choose the elements you need to take into consideration when making your volume type

Correct Answer

Explanation

A cost of an EBS volume is determined by

Correct Answer

Explanation

With Amazon EBS Snapshots, you pay for the provisioned storage capacity

Correct Answer

Explanation

When you copy EBS Snapshots, you are charged for the data transferred across AWS Regions

Correct Answer

Explanation

Compute Optimizer is a service that analyzes the configuration and utilization metrics of your AWS resources

Correct Answer

Explanation

Under which circumstances should you consider using Amazon Elastic Compute Cloud (Amazon EC2) instance stores?

Correct Answer

Explanation

Which Amazon Elastic Block Store (Amazon EBS) volume types support provisioning IOPS performance separately from the volume size?

Correct Answer

Explanation

Which factors are used to calculate minimum volume size to support a sustained IOPS target for General Purpose and Provisioned IOPS volumes?

Correct Answer

Explanation

Which are some of the cost optimization opportunities with Amazon EBS volumes?

Correct Answer

Explanation

What is the recommended tool that works with your Amazon CloudWatch historic information to help optimizing your EBS volumes?

Correct Answer

Explanation

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