AWS Cloud Practitioner — All Questions

A company repeatedly bought too many or too few servers before it knew real demand. Which advantage of cloud computing directly addresses this?

• a.Stop guessing about capacity✓
• b.The ability to go global in minutes across Regions
• c.Massive economies of scale from aggregated demand
• d.Trading operating expense back into capital expense

In the cloud you scale up or down on demand, so you no longer over- or under-provision by guessing capacity in advance. This is one of the six advantages of cloud computing.

A gaming startup wants low latency for players in Europe and Asia without building overseas data centers. Which of the six advantages applies?

• a.Stop spending money running data centers
• b.Go global in minutes✓
• c.Benefit from massive economies of scale
• d.Increase capacity through long procurement cycles

Deploying to multiple AWS Regions lets you reach users worldwide with low latency in minutes, rather than building foreign data centers.

Why can AWS offer lower pay-as-you-go prices as more customers join the platform?

• a.Aggregated demand from many customers lowers per-unit cost✓
• b.Because AWS caps the number of customers per Region
• c.Because customers each negotiate their own hardware pricing directly
• d.Because every customer runs on isolated dedicated hardware

With hundreds of thousands of customers aggregated in the cloud, AWS achieves economies of scale that translate into lower pay-as-you-go prices.

Which advantage means you pay only for the resources you actually consume?

• a.Guaranteed flat monthly pricing regardless of how much you use
• b.A mandatory three-year commitment for all resources
• c.Unlimited capacity provided at no cost to enterprises
• d.Trade fixed expense for variable expense✓

Instead of investing heavily in data centers before knowing usage, you pay a variable expense only for resources you consume.

A company no longer wants to rack, power, and cool its own servers so it can focus on customers. Which advantage is this?

• a.Guess future capacity needs more frequently
• b.Reduce overall business agility and speed
• c.Stop running and maintaining your own data centers✓
• d.Spend more time on undifferentiated heavy-lifting tasks

Cloud removes the undifferentiated heavy lifting of running data centers, freeing teams to focus on customers and differentiating work.

A team can obtain new IT resources in minutes instead of weeks. Which advantage of cloud computing is this?

• a.Benefit from massive economies of scale
• b.Increase speed and agility✓
• c.Trade variable expense for fixed expense
• d.Go global in minutes

Cloud agility means resources are available almost instantly, dramatically cutting the time to make them available to developers.

When comparing on-premises with cloud, which cost concept accounts for hardware, power, cooling, staff, and space over time?

• a.Gross margin
• b.Marginal utility
• c.Total cost of ownership (TCO)✓
• d.An elastic amortization schedule

TCO captures all direct and indirect infrastructure costs; cloud often lowers TCO by removing data-center overhead and shifting to pay-as-you-go.

Buying servers outright before you know how much you will use them is an example of what?

• a.A pay-as-you-go usage charge
• b.A variable operating expense
• c.A consumption-based metered cost
• d.A capital expenditure (CapEx)✓

CapEx is an upfront fixed purchase of assets like servers. Cloud replaces much CapEx with OpEx that scales with actual use.

Which cost-optimization practice lowers spend by matching instance types and sizes to the actual workload requirements?

• a.Right-sizing resources✓
• b.Always buying the largest instances available
• c.Over-provisioning for safety
• d.Paying upfront for unused reserved capacity indefinitely

Right-sizing selects the least expensive resource that still meets performance needs, a core cost-optimization practice.

What is the main financial advantage of the pay-as-you-go model?

• a.You pay only for resources you consume✓
• b.You prepay for maximum peak capacity for the entire year regardless of use
• c.You must reserve all capacity three years in advance
• d.You are billed one fixed enterprise fee each month

Pay-as-you-go converts large fixed costs into variable costs that rise and fall with usage, avoiding paying for idle capacity.

What is the primary purpose of the AWS Cloud Adoption Framework (CAF)?

• a.To automatically provision and scale EC2 instances for you
• b.To encrypt all customer data at rest using managed keys
• c.To guide organizations through cloud adoption✓
• d.To monitor application performance logs in real time

The AWS CAF provides guidance and best practices across business and technical perspectives to help plan a successful cloud transformation.

The AWS Cloud Adoption Framework organizes guidance into how many foundational capability perspectives?

• a.Six✓
• b.Ten
• c.Three
• d.Twelve

The CAF has six perspectives: Business, People, Governance, Platform, Security, and Operations.

Which three CAF perspectives focus on business capabilities rather than technical ones?

• a.Platform, Security, and Operations
• b.Reliability, Security, and Cost
• c.Compute, Storage, and Networking
• d.Business, People, and Governance✓

In the CAF, Business, People, and Governance address business capabilities, while Platform, Security, and Operations address technical capabilities.

Under the AWS CAF, which perspective helps you achieve the confidentiality, integrity, and availability of data and workloads?

• a.The People perspective
• b.The Business perspective
• c.The Security perspective✓
• d.The Operations perspective

The CAF Security perspective helps structure the selection and implementation of controls to protect data and meet compliance goals.

Which CAF perspective focuses on culture, organizational structure, leadership, and workforce skills for cloud adoption?

• a.Platform
• b.Governance
• c.People✓
• d.Operations

The People perspective bridges technology and business, addressing culture, roles, and the skills needed to adopt cloud successfully.

In AWS migration planning, the '6 R's' (or 7 R's) are a set of what?

• a.Application migration strategies✓
• b.The available AWS Support plan tiers
• c.Security and compliance certification frameworks
• d.The pillars of the Well-Architected Framework

The 6/7 R's (Rehost, Replatform, Repurchase, Refactor, Retire, Retain, and Relocate) describe strategies for migrating applications to the cloud.

Moving an application to AWS with little or no change, often called 'lift and shift,' is which migration strategy?

• a.Refactor
• b.Retire
• c.Rehost✓
• d.Repurchase

Rehosting (lift and shift) moves an application as-is to the cloud, typically the fastest strategy and a common first step before later optimization.

Making a few cloud optimizations, such as moving a database to Amazon RDS, without changing the core architecture is called what?

• a.Retiring the application entirely
• b.Retaining it on-premises for now
• c.Repurchasing a SaaS replacement
• d.Replatforming✓

Replatforming ('lift and reshape') makes targeted optimizations while keeping the application's core architecture intact.

Replacing a self-managed application by moving to a different product, often a SaaS offering ('drop and shop'), is which strategy?

• a.Repurchase✓
• b.Refactor
• c.Retain
• d.Rehost

Repurchasing means switching to a different, often SaaS, product, for example moving from a self-hosted CRM to a subscription CRM.

During a migration assessment you find applications that are no longer needed. Which strategy applies?

• a.Repurchase equivalent SaaS tools
• b.Rehost them on EC2
• c.Retire them✓
• d.Refactor them into microservices

Retire means decommissioning applications that provide no value, reducing cost and the migration surface area.

Which migration strategy means keeping certain applications in their current environment for now, perhaps to revisit later?

• a.Retain✓
• b.Replatform onto managed services
• c.Rehost onto right-sized EC2 instances
• d.Repurchase a SaaS equivalent

Retain (sometimes 'revisit') keeps an application where it is, useful when there is no immediate business case to migrate it yet.

Re-architecting an application to be cloud-native, such as breaking a monolith into serverless microservices, is which strategy?

• a.Rehosting with no code changes at all
• b.Retiring the workload permanently
• c.Retaining it unchanged on-premises
• d.Refactoring✓

Refactoring (re-architecting) significantly changes an application to take full advantage of cloud-native features; it usually costs the most effort but can yield the biggest benefits.

What is the main purpose of the AWS Well-Architected Framework?

• a.To provision and patch all infrastructure automatically for you
• b.To eliminate the need for any monitoring or logging tools
• c.To guide building secure, reliable, efficient workloads✓
• d.To automatically bill customers for every architecture review performed

The Well-Architected Framework offers best practices across six pillars to help design and operate reliable, secure, efficient, cost-effective, and sustainable systems.

How many pillars does the AWS Well-Architected Framework currently have?

• a.Nine
• b.Twelve
• c.Six✓
• d.Four

The six pillars are operational excellence, security, reliability, performance efficiency, cost optimization, and sustainability.

Which pillar focuses on running and monitoring systems and continually improving processes and procedures?

• a.Reliability
• b.Cost optimization
• c.Operational excellence✓
• d.Performance efficiency

Operational excellence covers running, monitoring, and continuously improving operations, using practices like operations as code and small, frequent changes.

Protecting information and systems through confidentiality, integrity, and privilege management falls under which pillar?

• a.Reliability
• b.Security✓
• c.Performance efficiency
• d.Sustainability

The security pillar covers protecting data, systems, and assets, including identity management, detective controls, and data protection.

Which Well-Architected best practice improves reliability by assuming components will fail?

• a.Design for failure with automated recovery✓
• b.Avoid redundancy entirely to minimize monthly cost
• c.Manually restart the system after every component fault
• d.Consolidate everything onto one large server for simplicity

Anticipating failure with redundancy and automated recovery lets systems withstand component failures, a key reliability practice.

Using auto scaling so you no longer over- or under-provision enables which Well-Architected design principle?

• a.Keep infrastructure static
• b.Stop guessing capacity✓
• c.Increase manual capacity planning
• d.Refuse to test at scale

With cloud automation you add or remove capacity to match demand, so you stop guessing and avoid paying for idle or under-sized resources.

Adopting a consumption model and measuring overall efficiency are practices in which pillar?

• a.Cost optimization✓
• b.Operational excellence
• c.Reliability
• d.Security

Cost optimization includes adopting a consumption model, measuring efficiency, and stopping spend on undifferentiated heavy lifting.

Maximizing utilization of provisioned resources to reduce energy use supports which pillar?

• a.Security
• b.Reliability
• c.Performance efficiency
• d.Sustainability✓

The sustainability pillar reduces the environmental impact of workloads, such as by maximizing utilization and choosing efficient resources and Regions.

Which factor is NOT typically a reason to choose one AWS Region over another?

• a.The color scheme of the AWS Console✓
• b.Availability of specific services in that Region
• c.Data residency and compliance requirements
• d.Proximity to end users to reduce latency

You choose Regions based on latency, compliance and data residency, service availability, and cost, not cosmetic factors.

To design for high availability within a Region, across how many Availability Zones should you distribute resources?

• a.Exactly one AZ per Region
• b.At least two AZs✓
• c.Zero AZs
• d.A single AZ is sufficient

Deploying across at least two Availability Zones lets a workload survive the failure of one AZ, since AZs are physically isolated.

Amazon CloudFront primarily uses which part of the AWS global infrastructure to cache content near users?

• a.Local storage gateways
• b.Edge locations✓
• c.Availability Zones
• d.Dedicated Hosts

Edge locations (points of presence) cache content close to users to lower latency for CloudFront and speed up DNS with Route 53.

Which infrastructure option places compute and storage closer to a specific large metro area for single-digit-millisecond latency?

• a.Reserved Instances
• b.S3 Glacier
• c.AWS Artifact
• d.AWS Local Zones✓

AWS Local Zones extend a Region to place latency-sensitive resources near large metro areas, useful for media, gaming, and real-time applications.

A regulated customer must keep some workloads physically on-premises but wants AWS services and APIs there. Which offering fits?

• a.AWS Global Accelerator
• b.Amazon CloudFront
• c.Amazon Route 53
• d.AWS Outposts✓

AWS Outposts brings AWS infrastructure and services to your own data center, supporting hybrid workloads that must remain on-premises.

Why are Availability Zones within a Region physically separated by a meaningful distance?

• a.So all zones can share one common power source
• b.To force every network request through a single building
• c.So one AZ's disaster is unlikely to impact the others✓
• d.To deliberately increase network latency between the zones

AZs are far enough apart to be isolated from disasters yet close enough for low-latency links, enabling both resilience and synchronous replication.

Which AWS service is global rather than tied to a single Region?

• a.Amazon EC2
• b.AWS IAM✓
• c.Amazon EBS
• d.Amazon RDS

IAM is a global service; users, roles, and policies are not confined to one Region, whereas EC2, RDS, and EBS are Regional or zonal.

How does the cloud lower the cost of failure for new experiments?

• a.By requiring lengthy hardware approval cycles before testing
• b.By forcing a multi-year commitment before any experiment begins
• c.Resources are provisioned quickly and released when done✓
• d.By charging a large penalty whenever resources are deleted

Fast provisioning and release mean a failed experiment costs little, encouraging rapid, low-risk innovation.

Which cloud characteristic means usage is monitored, controlled, and reported so you can be billed for exactly what you use?

• a.Rapid elasticity
• b.Measured service✓
• c.Resource pooling
• d.Broad network access

Measured service meters usage transparently, enabling pay-as-you-go billing and giving both provider and customer visibility into consumption.

Which cloud characteristic describes AWS serving many customers from a shared pool of physical resources, abstracted from the customer?

• a.Measured, metered service billing
• b.On-demand self-service provisioning through the console
• c.Rapid elasticity that scales in and out automatically
• d.Resource pooling✓

Resource pooling lets AWS serve many tenants from shared, dynamically assigned physical resources while keeping each customer logically isolated.

Which CAF perspective helps you manage and measure cloud investments, control risk, and align cloud spend with business outcomes?

• a.Governance✓
• b.People
• c.Operations
• d.Platform

The Governance perspective orchestrates cloud initiatives while maximizing value and minimizing risk, covering portfolio, program, and financial management.

Which CAF perspective helps build an enterprise-grade, scalable cloud platform and modernize workloads?

• a.Governance
• b.Business
• c.People
• d.Platform✓

The Platform perspective focuses on building a scalable hybrid cloud platform and modernizing existing and new workloads.

Ensuring cloud services are delivered and operated at a level that meets business needs falls under which CAF perspective?

• a.Security
• b.People
• c.Operations✓
• d.Business

The Operations perspective ensures cloud services are delivered and operated reliably to meet business requirements, including observability and incident management.

In an on-premises model, who bears the risk of buying too much or too little capacity?

• a.No one, because capacity is automatic
• b.The end users of the application
• c.The hardware manufacturer that originally supplied the physical servers
• d.The organization that owns the data center✓

On-premises, the organization must forecast and buy capacity, bearing the cost of over- or under-provisioning; the cloud shifts this to elastic consumption.

What distinguishes elasticity from basic scalability?

• a.Elasticity scales capacity out and back in automatically✓
• b.Elasticity applies exclusively to object storage services
• c.Elasticity means the capacity level can never change at all
• d.Elasticity can only ever add capacity, never remove it

Scalability is the capacity to grow; elasticity adds and removes resources automatically in response to real-time demand.

A service with 'four nines' availability is designed to be up about what percentage of the time?

• a.90%
• b.9.9%
• c.99.99%✓
• d.50%

'Four nines' means 99.99% availability, roughly 52 minutes of downtime per year; more nines mean less allowable downtime.

In disaster-recovery planning, what does Recovery Time Objective (RTO) measure?

• a.The target time to restore service after disruption✓
• b.The total monthly cost of storing all backups offsite
• c.The number of Availability Zones available in a given Region
• d.The maximum acceptable amount of data loss measured in time

RTO is how quickly you must recover service after an outage; RPO, by contrast, is how much data loss in time is acceptable.

What does Recovery Point Objective (RPO) describe?

• a.The maximum acceptable data loss, in time✓
• b.The hourly on-demand price of an EC2 instance type
• c.The total number of concurrent users a given system can support
• d.How fast the network can transfer data between Regions worldwide

RPO defines how much recent data you can afford to lose, guiding backup and replication frequency.

Why is the cloud's variable-cost model especially valuable to a new startup?

• a.It avoids large upfront hardware spending to launch✓
• b.It contractually guarantees the startup will become profitable
• c.It requires purchasing three full years of capacity upfront
• d.It removes the need to write or maintain any software

Startups can launch without buying data centers, paying only as they grow, freeing capital and reducing risk.

'Performing operations as code' is a design principle of which pillar?

• a.Performance efficiency and cost optimization considered together as one
• b.Sustainability
• c.Operational excellence✓
• d.Cost optimization

Operational excellence encourages defining operations as code so procedures are consistent, repeatable, and can be triggered automatically.