420 questions
What does the AWS Billing Dashboard primarily let you do?
- a.View current and past charges, spending trends, and access billing tools in one place✓
- b.Trace each individual request as it travels across all of your distributed microservices
- c.Provision new EC2 instances
- d.Encrypt data stored in Amazon S3
The AWS Billing Dashboard gives a central view of current month-to-date spend, historical trends, and links to billing tools such as Cost Explorer and Budgets. It is the starting point for understanding and managing account charges.
Which is a benefit of using AWS Organizations for a company with many AWS accounts, from a cost perspective?
- a.It automatically finds and deletes any unused resources across all of the accounts to save money
- b.It guarantees a fixed monthly bill
- c.Combined usage across accounts can qualify for volume discounts under one consolidated bill✓
- d.It removes the need to monitor usage
AWS Organizations enables consolidated billing, which aggregates usage across accounts so the group can reach volume-pricing tiers and share commitment discounts under one bill. It simplifies payment while preserving per-account visibility.
Which support plan tier includes access to online resources, whitepapers, documentation, and the AWS support community at no additional charge?
- a.Business
- b.Basic✓
- c.Enterprise
- d.Developer
Basic Support is included free with every AWS account and provides access to documentation, whitepapers, support forums, and account and billing assistance. Technical support with response-time commitments requires a paid plan.
Which of the following usage would typically incur a charge even when other Free Tier limits are respected?
- a.Reading AWS documentation
- b.Using an always-free service within its stated limits
- c.Staying exactly within the twelve-month Free Tier limits for each service
- d.Exceeding the monthly Free Tier hours for an EC2 instance type✓
Exceeding a Free Tier allowance, such as running more EC2 hours than the offer includes, triggers standard pay-as-you-go charges for the overage. Staying within limits and using always-free offers within their bounds avoids charges.
What is the main advantage of the Compute Savings Plans over EC2 Instance Savings Plans?
- a.Compute Savings Plans apply broadly across instance families, Regions, and services like Fargate and Lambda✓
- b.Compute Savings Plans require no commitment
- c.Compute Savings Plans always give the single largest possible discount of any purchase option that is available
- d.Compute Savings Plans only apply to a single instance type
Compute Savings Plans offer the most flexibility, automatically applying the discount across any instance family, size, Region, tenancy, and even to Fargate and Lambda usage. EC2 Instance Savings Plans give a deeper discount but are limited to a chosen instance family in a Region.
Which action helps ensure you are notified before a project's monthly spending exceeds an approved amount?
- a.Attach an Elastic IP to every instance
- b.Turn off AWS CloudTrail
- c.Enable Amazon Macie scanning on all of your buckets
- d.Create an AWS Budget with an alert threshold✓
Creating an AWS Budget with alert thresholds sends notifications as actual or forecasted spend approaches or exceeds the limit, helping teams stay within approved amounts. It is a core proactive cost-control practice.
Which of the following would AWS Trusted Advisor NOT typically help with directly?
- a.Checking whether you are approaching service limits
- b.Identifying idle load balancers to reduce cost
- c.Flagging security groups with unrestricted access
- d.Writing the business logic of your application✓
Trusted Advisor provides best-practice checks for cost, security, fault tolerance, performance, and service limits, but it does not write application code. It advises on your environment's configuration and usage, not your software logic.
A startup expects highly variable, unpredictable traffic in its first months. Which pricing model best matches this uncertainty while minimizing commitment risk?
- a.On-Demand pricing✓
- b.A three-year Savings Plan
- c.Dedicated Hosts with a one-year commitment
- d.Three-year Reserved Instances
On-Demand pricing matches unpredictable, variable workloads because it requires no commitment and charges only for what is used. Long-term commitments make sense later, once usage patterns become predictable.
Which best describes how AWS charges for most services?
- a.A one-time lifetime license per service
- b.Based on actual usage of each service, such as compute time, storage, and data transfer✓
- c.A single flat monthly fee that covers completely unlimited use of every AWS service offered
- d.Only an annual subscription negotiated in advance
AWS generally bills based on metered usage of each service, such as compute hours, storage consumed, requests, and data transfer, following the pay-as-you-go model. This lets costs scale with actual consumption.
Which tool helps you allocate and track shared costs and view amortized costs of Reserved Instances and Savings Plans over time?
- a.AWS Shield
- b.AWS Cost Explorer✓
- c.Amazon Inspector service
- d.Amazon Cognito
AWS Cost Explorer can display costs including amortized views of Reserved Instances and Savings Plans and, with cost categories and allocation tags, helps allocate shared spend. It supports understanding true cost distribution over time.
Which statement about AWS support plan pricing is accurate?
- a.All support plans are free
- b.Support plans are billed only one single time, at the moment the account is first created
- c.Paid support plan cost often scales with your monthly AWS usage, subject to minimums✓
- d.Enterprise Support is cheaper than Developer Support
Paid AWS Support plans are commonly priced as the greater of a monthly minimum or a percentage of monthly AWS usage, so cost generally scales with spend. Basic Support is free, while Enterprise is the most comprehensive and costly tier.
Which service or feature would help a finance team automatically stop or receive alerts when a sandbox account's spend is abnormally high?
- a.Amazon EBS point-in-time volume snapshots scheduled hourly
- b.AWS Budgets combined with Cost Anomaly Detection✓
- c.AWS Direct Connect
- d.Amazon Route 53
AWS Budgets can alert (and trigger actions) when spend crosses thresholds, and Cost Anomaly Detection uses machine learning to flag unusual spending. Together they help finance teams catch and respond to abnormal costs.
Why might an organization choose EC2 Instance Savings Plans over Compute Savings Plans?
- a.Because they require no commitment at all
- b.Because they automatically apply to both Lambda and Fargate compute usage across your whole account
- c.Because they are the only option that includes support
- d.To get a deeper discount in exchange for committing to a specific instance family in a Region✓
EC2 Instance Savings Plans provide a larger discount than Compute Savings Plans but restrict the commitment to a particular instance family within a Region. The trade-off is less flexibility for a deeper price reduction.
What does 'amortized cost' represent in AWS cost reporting?
- a.The total data stored in Amazon S3
- b.Upfront commitment charges spread evenly across the term they cover✓
- c.The cost of outbound data transfer only
- d.The current total number of running EC2 instances across the whole account
Amortized cost distributes upfront payments for commitments like Reserved Instances or Savings Plans evenly over the commitment term, rather than showing the full charge at purchase. This gives a smoother, more representative view of ongoing costs.
A company wants a single monthly invoice for 15 AWS accounts while keeping each team's costs visible. Which capability enables this?
- a.Consolidated billing through AWS Organizations✓
- b.AWS Direct Connect
- c.Elastic Load Balancing
- d.Automatic cross-Region replication of resources
Consolidated billing in AWS Organizations produces one invoice for the payer account across all member accounts while still allowing per-account cost tracking. It also aggregates usage for potential volume discounts.
Which is the best first step to control costs when you notice an unexpectedly high bill driven by many small services?
- a.Immediately upgrade to the Enterprise Support plan to reduce your per-service prices
- b.Immediately delete the entire AWS account
- c.Turn off all monitoring to stop the charges
- d.Use Cost Explorer to identify which services and resources are driving the spend✓
Cost Explorer lets you break down spend by service, account, and tag to pinpoint what is driving costs before taking action. Understanding the source is the essential first step to targeted cost reduction.
Which pricing benefit is unique to committing to Reserved Instances or Savings Plans rather than using On-Demand?
- a.Charges only for storage and never for compute
- b.No ability to run instances continuously
- c.Lower rates in exchange for a one- or three-year usage commitment✓
- d.Automatic elimination of every outbound data-transfer fee across all Regions
Reserved Instances and Savings Plans reduce compute costs significantly in return for committing to a one- or three-year term, unlike On-Demand which has no commitment or discount. The right choice depends on how predictable the workload is.
Which service provides on-demand access to compliance reports, and is free of charge but is not itself a cost-management tool?
- a.AWS Budgets
- b.AWS Cost Explorer
- c.AWS Artifact✓
- d.AWS Pricing Calculator
AWS Artifact offers free, on-demand access to AWS compliance reports and agreements, but it is a governance/compliance tool rather than a cost-management one. Cost management is handled by tools like Cost Explorer, Budgets, and the Pricing Calculator.
Which statement about the relationship between AWS Support plans and Trusted Advisor is correct?
- a.AWS Trusted Advisor requires a completely separate paid subscription that must be purchased outside of the standard AWS Support plans
- b.Only the Basic plan gets the full set of checks
- c.Trusted Advisor is unavailable on every plan
- d.Basic and Developer plans get a limited set of Trusted Advisor checks, while Business and Enterprise get the full set✓
All accounts get a core subset of Trusted Advisor checks, while the full set across all five categories is unlocked with Business and Enterprise (and Enterprise On-Ramp) Support. Higher tiers therefore provide deeper cost and security guidance.
Which Reserved Instance payment option provides the largest discount?
- a.Partial Upfront combined with lower monthly charges
- b.All Upfront✓
- c.Paying only after the reserved term has fully ended
- d.No Upfront, spread as equal monthly charges over the whole term with no initial payment
Reserved Instances offer three payment options, and All Upfront (paying the entire amount at purchase) gives the biggest discount. No Upfront gives the smallest discount, and Partial Upfront falls in between.
这门考试有多难?
AWS Certified Cloud Practitioner(CLF-C02)是一门基础级考试:65 题(50 计分另加 15 不计分),90 分钟,在 100-1,000 分制上 700 分及格。考试费 100 美元。范围广但偏入门——不涉及编程——涵盖云概念、安全、核心 AWS 服务与计费。
- 推荐学习时间
- 多数人 20-40 小时;对云计算完全陌生的话更久。
- 通过率
- 我们在 2026 年 9 月查阅了 AWS 自己公布的材料,其中没有通过率。AWS 认证 FAQ 与 CLF-C02 考试指南中都没有出现「pass rate」一词。不要把 AWS 那句「不公布考试及格分」误当作关于通过率的说法 —— 那说的是及格分,而且考试指南本身就写明:「最低及格分为 700。」来源: AWS — Certification FAQs · AWS — Certified Cloud Practitioner (CLF-C02) Exam Guide (PDF)
- 重点学习方向
- 云技术与服务(34%)与安全与合规(30%)是最大的两个领域——两者合计约占考试三分之二。
费用与薪资为近似值,会随时间变动。上方的通过率引自旁边链接的来源,并限于该来源覆盖的期间——凡是我们尚未核实来源的,都会直接说明并且不给数字。