AWS Cloud Practitioner Billing, Pricing practice questions
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AWS Cloud Practitioner Billing, Pricing, and Support: 168 practice questions

AWS Cloud Practitioner 168 questions 12 shown free

12 of the 168 Billing, Pricing, and Support questions in the Certsqill AWS Cloud Practitioner bank, shown in full below. Each one carries an explanation for every option, not just the correct one — the wrong answers are where the marks go.

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1. Store frequently accessed objects in Amazon S3 Standard: Which TWO choices best fit these separate requirement

Easy
A small software team has highly variable compute usage for a customer-facing production workload that cannot tolerate interruption, and frequently accessed object data. Which TWO choices best fit these separate requirements? Select TWO.

Select two. More than one option is correct — every correct one is ticked below.

  1. Store frequently accessed objects in Amazon S3 Standard. ✓
    S3 Standard is object storage designed for frequently accessed data with immediate availability.
  2. Use Spot Instances for the compute workload.
    Spot Instances use spare capacity and can be interrupted, so they do not fit this non-interruptible workload.
  3. Use Amazon EBS as the primary store for shared application objects.
    EBS provides persistent block storage for EC2, not shared object storage for application data.
  4. Use EC2 On-Demand Instances for the compute workload. ✓
    On-Demand Instances support variable usage without a long-term commitment and avoid Spot interruption risk.
  5. Use Reserved Instances for the unpredictable compute usage.
    Reserved Instances involve term and usage conditions that are less suitable for unpredictable demand.
The trap
Focuses on lower pricing while overlooking interruption risk. Applies commitment-based pricing to changing usage. Confuses block storage with object storage.

On-Demand fits variable non-interruptible compute, while S3 Standard fits frequently accessed objects.

2. Store completed results in Amazon S3: Which TWO choices fit?

Easy
An education startup runs batch processing that can tolerate interruptions and must retain completed results as durable objects. Which TWO choices fit? Select TWO.

Select two. More than one option is correct — every correct one is ticked below.

  1. Use instance store as the sole location for retained results.
    Instance store is temporary host-attached storage and is unsuitable as the sole retained-results location.
  2. Use Dedicated Hosts for the interruptible batch processing.
    Dedicated Hosts address physical host control and licensing needs, not economical interruptible batch processing.
  3. Store completed results in Amazon S3. ✓
    Amazon S3 provides durable object storage suitable for retaining completed batch results.
  4. Use Spot Instances for the interruptible batch processing. ✓
    Spot Instances use spare EC2 capacity and suit processing that can tolerate interruptions.
  5. Use Reserved Instances for the changing batch workload.
    Reserved Instances involve term and scope conditions that do not naturally fit changing batch demand.
The trap
Selects dedicated hardware without a licensing or host-control requirement. Confuses committed pricing with interruption-tolerant flexibility. Overlooks instance-store lifecycle limitations.

Spot fits interruption-tolerant processing, while S3 provides durable object storage for completed results.

3. Compute Savings Plans: Which option best fits?

Medium
A nonprofit has steady eligible usage and wants a discount by committing to consistent hourly compute spending. Which option best fits?
  1. On-Demand Instances
    On-Demand supports flexibility but does not provide the commitment-based discount described.
  2. Compute Savings Plans ✓
    Compute Savings Plans provide discounts for eligible usage in return for a consistent hourly spending commitment.
  3. Spot Instances
    Spot Instances use spare capacity and interruption risk rather than a consistent hourly spending commitment.
  4. On-Demand Capacity Reservations
    Capacity Reservations reserve matching Availability Zone capacity but do not intrinsically provide usage discounts.
The trap
Chooses flexibility when the requirement emphasizes committed savings. Confuses capacity assurance with discounted purchasing. Matches savings generally but not the stated commitment model.

Compute Savings Plans discount eligible usage when the customer accepts a consistent hourly spending commitment.

4. On-Demand Capacity Reservations: Which option best fits?

Medium
A travel service must ensure matching EC2 capacity is available in a particular Availability Zone, but does not require a usage discount. Which option best fits?
  1. Compute Savings Plans
    Compute Savings Plans provide eligible usage discounts but do not reserve EC2 capacity.
  2. Spot Instances
    Spot Instances use spare capacity and may be interrupted, so they do not ensure matching capacity.
  3. On-Demand Capacity Reservations ✓
    On-Demand Capacity Reservations reserve matching EC2 capacity in a specified Availability Zone without intrinsically discounting usage.
  4. Reserved Instances
    Reserved Instances primarily provide billing benefits and do not by themselves express this capacity requirement.
The trap
Confuses pricing reservation with capacity reservation. Recognizes commitment pricing but misses capacity assurance. Chooses flexible discounted capacity when guaranteed availability is required.

On-Demand Capacity Reservations address Availability Zone capacity assurance, unlike pricing discounts or interruptible capacity.

5. Dedicated Hosts: Which option best fits?

Medium
An IT procurement team needs physical EC2 host control to support eligible software licensing requirements. Which option best fits?
  1. Dedicated Hosts ✓
    Dedicated Hosts provide a physical server dedicated to the customer and support eligible licensing needs.
  2. On-Demand Capacity Reservations
    Capacity Reservations address EC2 availability, not physical host control for software licensing.
  3. Compute Savings Plans
    Compute Savings Plans reduce eligible usage costs but do not provide physical host control.
  4. Dedicated Instances
    Dedicated Instances run on hardware dedicated to one customer but provide less host-level visibility and control.
The trap
Confuses customer-dedicated instances with an explicitly dedicated physical host. Confuses capacity assurance with licensing-oriented host allocation. Confuses pricing flexibility with hardware allocation.

Dedicated Hosts provide physical server dedication and host-level control useful for eligible licensing requirements.

6. S3 Standard-Infrequent Access: Which S3 storage class best fits?

Hard
A customer support team stores objects that are accessed occasionally, must remain resilient across multiple Availability Zones, and should avoid archive retrieval delays. Which S3 storage class best fits?
  1. S3 Glacier Flexible Retrieval
    S3 Glacier Flexible Retrieval targets archival data and can involve retrieval delays unsuitable for this requirement.
  2. S3 One Zone-Infrequent Access
    S3 One Zone-IA suits infrequent access but does not meet the multi-Availability Zone resilience requirement.
  3. S3 Standard-Infrequent Access ✓
    S3 Standard-IA supports infrequent access with multi-Availability Zone resilience and immediate retrieval.
  4. S3 Standard
    S3 Standard meets availability needs but may cost more than necessary for occasionally accessed objects.
The trap
Chooses the general-purpose class without considering the stated access pattern. Focuses on access frequency while overlooking resilience. Chooses an archive class despite avoiding delayed access.

S3 Standard-IA balances occasional access, multi-Availability Zone resilience, and immediate retrieval.

7. The additional usage is billed at On-Demand rates: What happens to the additional usage?

Medium
A new cloud learner uses a Compute Savings Plan but later consumes more eligible compute than the committed hourly amount. What happens to the additional usage?
  1. The additional usage automatically receives the same commitment discount.
    Usage beyond the commitment is not automatically covered by the committed discounted amount.
  2. The additional usage is billed at On-Demand rates. ✓
    Eligible usage beyond the committed amount can continue and is billed at On-Demand rates.
  3. The additional usage is billed as Spot capacity.
    Savings Plans do not convert excess usage into Spot capacity or change its interruption characteristics.
  4. The additional usage is rejected until the commitment increases.
    Compute Savings Plans do not cap eligible usage or reject consumption beyond the committed amount.
The trap
Treats a pricing commitment as a capacity or usage limit. Assumes the discount expands automatically with consumption. Confuses purchasing discounts with a different capacity purchasing model.

Compute Savings Plans discount covered usage; eligible usage beyond the commitment can be charged at On-Demand rates.

8. Compute Savings Plans: Which option best fits?

Medium
A small software team wants one Compute Savings Plan to apply flexibly across eligible usage on Amazon EC2, AWS Fargate, and AWS Lambda. Which option best fits?
  1. Compute Savings Plans ✓
    Compute Savings Plans apply to eligible usage across Amazon EC2, AWS Fargate, and AWS Lambda.
  2. EC2 Instance Savings Plans
    EC2 Instance Savings Plans are tied more specifically to eligible EC2 usage, not all three services.
  3. On-Demand Capacity Reservations
    Capacity Reservations reserve matching EC2 capacity but do not cover Fargate and Lambda usage.
  4. Reserved Instances
    Reserved Instances provide billing benefits for defined usage scopes and do not span all three listed services.
The trap
Chooses a traditional commitment that lacks the required service flexibility. Confuses EC2 capacity assurance with cross-service compute pricing. Confuses a narrower Savings Plan type with Compute Savings Plans.

Compute Savings Plans provide flexible discounted coverage across eligible EC2, Fargate, and Lambda usage.

9. Amazon EC2 On-Demand Instances: Which option best fits?

Easy
A nonprofit has unpredictable compute usage, cannot tolerate interruptions, and wants to avoid paying for unused commitments. Which option best fits?
  1. Amazon EC2 Spot Instances
    Spot Instances can be interrupted, which conflicts with the stated interruption requirement.
  2. Compute Savings Plans
    Compute Savings Plans require a consistent hourly spending commitment, which does not fit unpredictable usage the nonprofit may not use.
  3. Amazon EC2 On-Demand Instances ✓
    On-Demand Instances support unpredictable usage without a long-term spending commitment or Spot interruption risk.
  4. Amazon EC2 Reserved Instances
    Reserved Instances provide billing benefits with term conditions and may result in unused commitment when demand changes.
The trap
Confuses discounted committed usage with flexible pricing. Overlooks the required spending commitment. Chooses lower pricing without considering interruption risk.

On-Demand pricing fits unpredictable, non-interruptible usage without a long-term commitment.

10. Verify applicable transfer pricing: Which approach is best?

Medium
A customer support team transfers data between AWS resources and wants to avoid assuming that every transfer is free. Which approach is best?
  1. Use a Compute Savings Plan to remove charges for all transfers.
    Compute Savings Plans discount eligible EC2, Fargate, and Lambda usage, not all data transfer charges.
  2. Assume transfers are free whenever both resources use AWS.
    AWS usage does not make every data transfer free; charges depend on the transfer context.
  3. Use S3 Standard because its storage class controls all transfer charges.
    S3 storage classes affect storage and retrieval economics, not every data transfer charge.
  4. Verify applicable transfer pricing. ✓
    Transfer charges depend on the services, direction, and applicable pricing conditions, so the specific pricing should be checked.
The trap
Treats a conditional pricing rule as universal. Confuses storage-class pricing with transfer pricing. Extends a compute discount beyond its scope.

Data transfer pricing is not universally free; verify the applicable services, direction, and conditions.

11. Amazon EC2 On-Demand Instances: Select TWO.

Easy
An IT procurement team needs compute for a variable workload that can tolerate interruptions and does not require a long-term spending commitment. Select TWO.

Select two. More than one option is correct — every correct one is ticked below.

  1. On-Demand Capacity Reservations
    Capacity Reservations reserve matching capacity in an Availability Zone but do not provide the requested commitment-free variable pricing.
  2. Amazon EC2 On-Demand Instances ✓
    On-Demand Instances support variable usage without a long-term commitment, satisfying flexibility even though they cost more than Spot.
  3. Amazon EC2 Spot Instances ✓
    Spot Instances use spare EC2 capacity at reduced prices and suit flexible workloads that can tolerate interruptions.
  4. Amazon EC2 Reserved Instances
    Reserved Instances involve term and scope conditions, conflicting with the requirement to avoid a long-term commitment.
  5. Compute Savings Plans
    Compute Savings Plans require a consistent hourly spending commitment, which the variable workload requirement specifically excludes.
The trap
Focuses on potential discounts while ignoring the explicit commitment constraint. Confuses service flexibility with commitment flexibility. Confuses capacity assurance with flexible workload pricing.

On-Demand supports flexible usage, while Spot supports interruptible work without a long-term spending commitment.

12. AWS Batch: Select TWO.

Easy
A manufacturing company runs batch processing that can restart after interruptions and wants to reduce compute cost. Select TWO.

Select two. More than one option is correct — every correct one is ticked below.

  1. AWS Batch ✓
    AWS Batch is designed to run batch jobs and can use interruption-tolerant compute such as Spot Instances for cost efficiency.
  2. Dedicated Hosts
    Dedicated Hosts provide physical server dedication and licensing control, neither of which addresses interruptible batch-cost reduction.
  3. On-Demand Capacity Reservations
    Capacity Reservations secure matching capacity but do not provide the lower-cost, interruption-tolerant processing model requested.
  4. Amazon EC2 Spot Instances ✓
    Spot Instances use spare EC2 capacity at lower prices and are appropriate when batch processing tolerates interruptions.
  5. Amazon EC2 Reserved Instances
    Reserved Instances provide billing benefits for committed usage, but they are not specifically intended for interruption-tolerant processing.
The trap
Selects a discount mechanism without matching the workload's interruption characteristic. Confuses guaranteed capacity with economical interruptible processing. Chooses host isolation for a workload needing flexible inexpensive compute.

Spot Instances reduce compute cost for restartable work, and AWS Batch provides a service focused on batch job execution.

156 more Billing, Pricing, and Support questions

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Part of the Certsqill AWS Cloud Practitioner question bank · Billing, Pricing, and Support · Every answer, right and wrong, comes with its own explanation.