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A growing SaaS company changes projected demand monthly and wants its operating costs to track actual use.
Which AWS concept, service, or approach best meets the need described?
Variable pricing links many cloud expenses to provisioned capacity and consumption while owned equipment has upfront fixed costs. For the described requirement, identify variable cloud expenditure as an alternative to purchasing fixed capital equipment.
Metered cloud consumption lowers initial capital outlay and supports experiments with uncertain future demand.
AWS global infrastructure enables geographic reach and faster regional market entry while the business remains responsible for its application.
Regional AWS infrastructure lets customers choose appropriate geographic placement subject to service availability and compliance.
A finance department wants centralized analytical queries instead of an operational transactional database.
Which observation would best confirm that the intended cloud outcome is being achieved?
Amazon Redshift is designed for analytics and warehouse workloads rather than conventional app transactions.
Aurora is AWS's managed relational engine designed for cloud operation and supported compatibility.
Amazon RDS operates supported relational databases with managed infrastructure and routine platform tasks.
AWS SCT helps assess and convert database schema objects during migration between different engines.
An archive contains historical records rarely accessed but retained for years.
Which AWS concept, service, or approach best meets the need described?
S3 archival classes trade access characteristics for lower storage costs on eligible archived data. For the described requirement, use a suitable Amazon S3 Glacier storage class for infrequently accessed archival objects.
AWS Backup centralizes backup configuration for supported AWS resource types.
EBS supplies block volumes for compatible EC2 instances rather than shared internet-facing object buckets.
S3 stores objects in buckets and is not mounted like an ordinary instance block device.
A department wants threshold alerts before its cloud spend exceeds a quarterly allowance.
Which observation would best confirm that the intended cloud outcome is being achieved?
AWS Budgets compares actual and forecast cost to budget thresholds and can notify stakeholders.
The AWS billing console provides cost and payment visibility rather than being a service deployment interface.
Cost allocation tags can group expenses in supported billing tools after appropriate activation.
Consolidated billing enables central management of multiple account bills and eligible shared pricing benefits.
A sustainability program asks which Well-Architected pillar prioritizes reducing energy and resource waste.
Which AWS concept, service, or approach best meets the need described?
Sustainability encourages efficient resource usage and avoiding unnecessary capacity and processing. For the described requirement, use the sustainability pillar to reduce environmental impacts across the workload life cycle.
Reliability addresses fault recovery, capacity to meet demand, and resilient operation.
Selecting fit-for-purpose resources meets performance needs without automatically overprovisioning.
Performance efficiency concerns effective resource selection, adaptation and continued performance improvement.
A purchase-processing service needs durable messages buffered between producers and asynchronous workers.
Which observation would best confirm that the intended cloud outcome is being achieved?
SQS stores messages for consumer processing and differs from a publish-subscribe notification topic.
EventBridge routes matching events from supported sources to configured destinations.
Amazon Connect supports contact-center interactions and routing rather than bulk marketing email delivery.
SNS can distribute published messages to configured endpoints and subscribers.
A service experiences hardware failure in one facility but its customer-facing function must continue.
Which observation would best confirm that the intended cloud outcome is being achieved?
Availability Zones are isolated fault locations within a Region and reduce dependency on one data-center location.
Cloud providers operate distributed infrastructure, but customers must select suitable services and fault-isolation designs.
AWS global infrastructure enables geographic reach and faster regional market entry while the business remains responsible for its application.
Regional AWS infrastructure lets customers choose appropriate geographic placement subject to service availability and compliance.
An audit department wants to minimize storage cost while accepting slower data retrieval.
Which AWS concept, service, or approach best meets the need described?
S3 archival classes trade access characteristics for lower storage costs on eligible archived data. For the described requirement, use a suitable Amazon S3 Glacier storage class for infrequently accessed archival objects.
EBS supplies block volumes for compatible EC2 instances rather than shared internet-facing object buckets.
Instance store is physically attached ephemeral storage and must not hold data requiring persistence through host loss.
S3 Lifecycle automates supported tier changes and expirations based on defined rules.
An education company wants developers to test a new feature without waiting weeks for equipment orders.
Which AWS concept, service, or approach best meets the need described?
Provisioning through AWS APIs and consoles improves agility by reducing procurement delays for new environments. For the described requirement, use cloud self-service provisioning to deliver resources rapidly for approved experiments.
Cloud providers operate distributed infrastructure, but customers must select suitable services and fault-isolation designs.
Regional AWS infrastructure lets customers choose appropriate geographic placement subject to service availability and compliance.
AWS supplies resilient infrastructure options but application architecture and chosen deployment patterns still affect availability.
A website wants to stop known malicious HTTP request patterns before they reach its application.
Which observation would best confirm that the intended cloud outcome is being achieved?
AWS WAF evaluates layer-7 web requests using rules instead of replacing VPC network routing.
CloudTrail records supported API operations and identity context for audit and investigation.
AWS Artifact provides on-demand access to relevant compliance documentation rather than inspecting customer application logs.
Audit Manager helps gather evidence against assessment controls but does not certify a customer's entire workload.
A company exposes a public web site but needs to keep an internal database inaccessible from the internet.
Which observation would best confirm that the intended cloud outcome is being achieved?
Private subnets without direct internet routes help limit direct exposure of backend systems.
A VPC contains configured networking components such as subnets, routes and gateways.
Route 53 provides DNS hosting and routing features for internet-accessible names.
Network ACLs evaluate inbound and outbound subnet traffic independently and are stateless.
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