A development and test environment is used for roughly eight hours a day on weekdays. Which cloud economics practice most directly reduces its cost?
Intermediate · Choose one
Explanation
Answer: D. Adopting a consumption model means paying only for the resources you consume and increasing or decreasing usage with business need. AWS uses this exact example: an environment needed 40 hours a week rather than 168 can be stopped when idle, for a potential saving of around 75 percent.
A. Prices vary between Regions, but moving a development environment across the world for a small rate difference adds latency for the team and does nothing about the 128 idle hours each week.
B. Versioning protects against accidental overwrite and deletion, and it increases storage consumed. It is a data protection feature, not a cost reduction.
C. A larger instance costs more per hour. Unless the tests are genuinely compute bound and the environment is then stopped, this usually raises the bill.
32
A company compares the cost of hosting a workload on premises with the cost of hosting it on AWS, but counts only server hardware on the on-premises side. Why is this comparison misleading?
Intermediate · Choose one
Explanation
Answer: B. Server hardware is only one line in the on-premises current operating model. A complete comparison must also include data center and facilities costs such as space, power, cooling, racks and uninterruptible power supplies, network services such as wide area links and VPNs, application and infrastructure software licensing, and the refresh and maintenance cycle for the hardware itself. Omitting them systematically understates the on-premises option.
A. Tax treatment differs between capital and operating spending, but that is a separate accounting consideration and not why this comparison is incomplete.
C. The outcome depends entirely on the workload and how it is architected. The problem here is the incomplete method, not a predetermined result.
D. AWS publishes prices that can and do change, and AWS has reduced prices many times. Price stability is not the flaw in the comparison.
33
An Amazon EC2 fleet runs consistently at 8 percent CPU and 12 percent memory utilization, and the workload has no seasonal peak. Which action best reflects cloud economics practice?
Intermediate · Choose one
Explanation
Answer: C. Rightsizing comes before commitment. Committing to three years of an oversized instance locks in the waste at a discount, whereas resizing first reduces the baseline and any commitment is then made against what the workload actually needs. Fixing the size and then buying the commitment compounds two savings; doing it in the other order does not.
A. A cheaper Region reduces the rate slightly but leaves the fleet oversized, and it may add latency for users and complicate the architecture.
B. Adding instances raises cost and lowers utilization further. Utilization is a symptom to fix, not a number to drive down.
D. A discount on the wrong size still pays for capacity that is never used, and the commitment makes it harder to correct later.
34
A company's existing per-core database licenses cannot, under the vendor's terms, be applied to shared-tenancy cloud infrastructure. What is the correct economic conclusion for its migration business case?
Intermediate · Choose one
Explanation
Answer: D. Existing entitlements are only worth what their terms allow. If the vendor forbids shared tenancy, the company either deploys on an option that satisfies those terms, which carries its own cost profile, or it pays for license-included capacity and treats the old licences as stranded. Either way the business case has a licensing line that a naive comparison would omit, and getting this wrong is one of the most common ways a migration business case turns out to be optimistic.
A. License mobility is granted by the software vendor, not by AWS. Where the terms do not permit it, the entitlement simply cannot be used on that deployment.
B. AWS does not absolve customers of third-party licensing. It offers license-included options in some services, but that is a charge rather than a waiver.
C. The cost changes precisely because the deployment model changes. Tenancy, core counting, and whether AWS or the customer supplies the licence all move the figure.
35
Which AWS service helps an organization manage software licenses from vendors such as Microsoft, SAP, Oracle, and IBM across AWS and on-premises environments, and can enforce licensing rules to reduce the risk of non-compliance?
Intermediate · Choose one
Explanation
Answer: D. AWS License Manager centralizes the tracking and enforcement of software license terms across AWS and on-premises environments. Administrators define licensing rules, such as counting sockets, physical cores, or virtual CPUs, and License Manager enforces usage limits, which reduces the risk of over-deployment and the cost exposure of a failed audit.
A. AWS Marketplace is a catalog for finding, buying, and deploying third-party software. It is a purchasing channel rather than a license tracking and enforcement service.
B. AWS Artifact is a self-service portal for downloading AWS compliance reports and agreements. It concerns AWS's own compliance evidence, not customer software licensing.
C. AWS Trusted Advisor provides best-practice recommendations across categories including cost and security. It does not track third-party license entitlements.
36
A company automates the provisioning, patching, and shutdown of its non-production environments. Which TWO economic benefits does this automation deliver? (Choose TWO.)
Intermediate · Select 2 answers
Explanation
Answer: B and C. Automating operations reduces the frequency of manual tasks, which both improves consistency and frees infrastructure and staff time for higher-value work and innovation. Automated shutdown then attacks the largest source of non-production waste directly: environments that sit running outside working hours accrue charges for capacity nobody is using.
A. Monitoring remains essential. Automation increases the rate of change, which makes visibility more important rather than less.
D. There is no automation discount. The savings come from consuming fewer resource-hours, which appears in the normal usage-based bill.
E. Data transfer charges depend on the traffic the architecture generates, not on how the environment is provisioned.
37
Which statement best explains why a workload that is lifted unchanged onto oversized, always-on Amazon EC2 instances may cost more on AWS than it did on premises?
Intermediate · Choose one
Explanation
Answer: B. Cost savings are not automatic; they follow from changing how capacity is consumed. Peak-sized instances that never scale in, running 24 hours a day, reproduce the on-premises waste while adding a per-hour charge for it. The levers that produce savings are rightsizing, scaling with demand, turning off idle environments, and moving operational burden to managed services.
A. Owned hardware continues to consume power, cooling, floor space, network, maintenance, and staff attention, and it must eventually be refreshed.
C. No such premium exists. Pricing depends on the resources consumed, not on how the workload arrived.
D. There is no blanket price relationship. The outcome depends on utilization, architecture, and what the on-premises comparison includes.
38
Which statement describes the economic effect of AWS taking on the "undifferentiated heavy lifting" of infrastructure?
Intermediate · Choose one
Explanation
Answer: A. AWS describes this as doing the heavy lifting of data center operations such as racking, stacking, and powering servers, and removing the operational burden of managing operating systems and applications through managed services. The economic value is the reallocation of scarce engineering time toward customers and business projects rather than toward infrastructure that no customer ever sees.
B. Application performance remains the customer's responsibility. AWS is responsible for the infrastructure and, for managed services, its operation.
C. Staff are still needed. Their work shifts from hardware and facilities toward architecture, automation, security, and product delivery.
D. No fixed percentage is guaranteed. Outcomes depend on the workloads, the architecture, and how disciplined the organization is about optimization.
39
A company must choose between a license-included Amazon RDS deployment and bringing its own database licenses. Which consideration is most relevant to that decision?
Intermediate · Choose one
Explanation
Answer: B. The decision turns on existing entitlements and their terms. If the company already holds licenses whose vendor terms permit deployment on the chosen AWS option, BYOL avoids paying for the same right twice. If it does not, license-included lets AWS hold the license and bundles its cost into the hourly rate, avoiding a separate procurement and true-up.
A. Consolidated billing aggregates charges across accounts in an organization. It does not change licensing entitlements.
C. Storage volume drives storage charges. It is not a factor in whether the customer or AWS supplies the database license.
D. Multi-Availability Zone deployment affects availability and the resources consumed. It may affect how many licenses are required but does not determine which licensing model is appropriate.
40
Which TWO statements about cloud economics are TRUE? (Choose TWO.)
Intermediate · Select 2 answers
Explanation
Answer: D and E. Two ideas define the shift. First, mistakes become cheap and reversible: an oversized environment costs only for the hours it ran, whereas an oversized hardware purchase is sunk for years. Second, massive economies of scale mean pooled demand across hundreds of thousands of customers gives a provider buying power and utilization no single organization can reach, which translates into lower pay-as-you-go prices.
A. Consumption-based spending varies with demand, releases, and architecture, which makes forecasting and cost management a discipline in its own right.
B. Provisioning permanently for peak reproduces the on-premises waste model and is one of the most common causes of unnecessary cloud spending.
C. Architecture is the dominant influence on cost. Instance sizing, storage class, scaling behavior, and choice of managed service change the bill dramatically.