C5-08-五星到一星学习优先级
1-★★★★★-核心内容
资料口径：本模块以用户提供的 719 道 CLF-C02 题库与前序 C1/C2 项目资料为基础。题库的
correct_answer、社区投票与评论用于发现考点和争议，不自动等于当前 AWS 官方结论；本模块没有在生成过程中擅自用外部常识覆盖题库内容。凡现有项目已经明确标记为[UPDATED]、[LEGACY]、[CURRENT-OUT-OF-SCOPE]的内容，会继续保留这些状态提示。正式考试前，涉及当前产品状态和 Support 计划等时效信息仍应再对照 AWS 官方页面。
综合分数 = 总曝光 + 2.2×正确选项 + 0.35×错误选项。星级是本项目学习排序，不是 AWS 官方权重。
| 排名 | 优先级 | 服务 | 综合分 | 总曝光 | 正确 | 错误 | 章节 |
|---|---|---|---|---|---|---|---|
| 1 | ★★★★★ | Amazon EC2 | 272.6 | 175 | 31 | 84 | C2-02 |
| 2 | ★★★★★ | AWS IAM | 181.7 | 76 | 38 | 63 | C2-08 |
| 3 | ★★★★★ | Amazon S3 | 178.0 | 83 | 29 | 89 | C2-04 |
| 4 | ★★★★★ | Reserved Instances | 95.7 | 45 | 17 | 38 | C2-15 |
| 5 | ★★★★★ | Amazon RDS | 79.7 | 42 | 13 | 26 | C2-05 |
| 6 | ★★★★★ | Spot Instances | 79.4 | 41 | 13 | 28 | C2-15 |
| 7 | ★★★★★ | On-Demand Instances | 74.8 | 46 | 8 | 32 | C2-15 |
| 8 | ★★★★★ | AWS Trusted Advisor | 65.8 | 41 | 6 | 33 | C2-10 |
| 9 | ★★★★★ | Amazon DynamoDB | 65.2 | 36 | 9 | 27 | C2-05 |
| 10 | ★★★★★ | AWS Support | 63.6 | 32 | 8 | 40 | C2-15 |
| 11 | ★★★★★ | Amazon VPC | 61.9 | 37 | 7 | 27 | C2-06 |
| 12 | ★★★★★ | AWS WAF | 59.0 | 33 | 8 | 24 | C2-09 |
| 13 | ★★★★★ | Security Group | 56.1 | 30 | 9 | 18 | C2-06 |
| 14 | ★★★★★ | AWS Direct Connect | 56.0 | 28 | 10 | 17 | C2-07 |
| 15 | ★★★★★ | AWS Lambda | 55.9 | 31 | 7 | 27 | C2-03 |
| 16 | ★★★★ | AWS CloudTrail | 54.2 | 27 | 10 | 15 | C2-10 |
| 17 | ★★★★ | AWS CloudFormation | 51.5 | 25 | 10 | 13 | C2-10 |
| 18 | ★★★★ | Amazon GuardDuty | 50.6 | 35 | 2 | 32 | C2-09 |
| 19 | ★★★★ | Amazon CloudWatch | 49.9 | 29 | 6 | 22 | C2-10 |
| 20 | ★★★★ | Amazon CloudFront | 49.2 | 26 | 8 | 16 | C2-07 |
| 21 | ★★★★ | Amazon Inspector | 47.9 | 30 | 4 | 26 | C2-09 |
| 22 | ★★★★ | AWS Organizations | 46.5 | 24 | 8 | 14 | C2-10 |
| 23 | ★★★★ | AWS Storage Gateway | 45.5 | 19 | 10 | 13 | C2-04 |
| 24 | ★★★★ | AWS Shield | 45.0 | 26 | 5 | 23 | C2-09 |
| 25 | ★★★★ | AWS Cost Explorer | 43.3 | 23 | 7 | 14 | C2-15 |
| 26 | ★★★★ | Amazon Aurora | 43.0 | 25 | 5 | 20 | C2-05 |
| 27 | ★★★★ | AWS Budgets | 41.8 | 20 | 8 | 12 | C2-15 |
| 28 | ★★★★ | Shared Responsibility Model | 41.4 | 41 | 0 | 1 | C2-16 |
| 29 | ★★★★ | AWS Artifact | 39.6 | 17 | 9 | 8 | C2-09 |
| 30 | ★★★★ | AWS Config | 39.3 | 25 | 3 | 22 | C2-10 |
| 31 | ★★★★ | AWS CAF | 38.4 | 33 | 2 | 3 | C2-16 |
| 32 | ★★★★ | AWS Snow Family | 36.8 | 15 | 8 | 12 | C2-14 |
| 33 | ★★★★ | Amazon Connect | 36.6 | 23 | 3 | 20 | C2-13 |
| 34 | ★★★★ | Savings Plans | 35.9 | 17 | 7 | 10 | C2-15 |
| 35 | ★★★★ | AWS Systems Manager | 33.4 | 22 | 2 | 20 | C2-10 |
| 36 | ★★★ | AWS Outposts | 32.9 | 15 | 7 | 7 | C2-14 |
| 37 | ★★★ | AWS Elastic Beanstalk | 32.7 | 16 | 6 | 10 | C2-02 |
| 38 | ★★★ | Amazon EBS | 32.4 | 21 | 2 | 20 | C2-04 |
| 39 | ★★★ | Network ACL | 32.4 | 16 | 6 | 9 | C2-06 |
| 40 | ★★★ | AWS Marketplace | 31.7 | 15 | 6 | 10 | C2-15 |
| 41 | ★★★ | Amazon Cognito | 31.7 | 18 | 4 | 14 | C2-08 |
| 42 | ★★★ | AWS Secrets Manager | 31.4 | 15 | 6 | 9 | C2-09 |
| 43 | ★★★ | Amazon Route 53 | 30.9 | 16 | 5 | 11 | C2-07 |
| 44 | ★★★ | MFA | 30.8 | 14 | 7 | 4 | C2-08 |
| 45 | ★★★ | EC2 Auto Scaling | 30.7 | 15 | 6 | 7 | C2-02 |
| 46 | ★★★ | AWS IAM Identity Center | 30.5 | 13 | 7 | 6 | C2-08 |
| 47 | ★★★ | AWS Fargate | 30.0 | 14 | 6 | 8 | C2-03 |
| 48 | ★★★ | Amazon Redshift | 29.9 | 18 | 3 | 15 | C2-12 |
| 49 | ★★★ | AWS Well-Architected Framework | 28.8 | 27 | 0 | 5 | C2-16 |
| 50 | ★★★ | Amazon Q | 28.7 | 13 | 6 | 7 | C2-13 |
| 51 | ★★★ | AWS DataSync | 28.5 | 17 | 3 | 14 | C2-14 |
| 52 | ★★★ | Amazon QuickSight | 28.3 | 13 | 6 | 6 | C2-12 |
| 53 | ★★★ | Amazon Macie | 28.1 | 14 | 5 | 9 | C2-09 |
| 54 | ★★★ | Elastic Load Balancing | 28.0 | 15 | 4 | 12 | C2-02 |
| 55 | ★★★ | Amazon Athena | 27.6 | 15 | 4 | 11 | C2-12 |
| 56 | ★★★ | Dedicated Hosts | 27.5 | 19 | 1 | 18 | C2-15 |
| 57 | ★★★ | AWS Pricing Calculator | 27.0 | 12 | 6 | 5 | C2-15 |
| 58 | ★★★ | AWS DMS | 26.3 | 14 | 4 | 10 | C2-14 |
| 59 | ★★★ | Amazon EFS | 25.3 | 16 | 2 | 14 | C2-04 |
| 60 | ★★★ | AWS Site-to-Site VPN | 25.3 | 16 | 2 | 14 | C2-07 |
| 61 | ★★★ | AWS Security Hub | 25.3 | 16 | 2 | 14 | C2-09 |
| 62 | ★★★ | AWS Service Catalog | 24.5 | 14 | 3 | 11 | C2-10 |
| 63 | ★★★ | Amazon Neptune | 23.6 | 12 | 4 | 8 | C2-05 |
| 64 | ★★★ | IAM Role | 23.4 | 11 | 5 | 4 | C2-08 |
| 65 | ★★★ | AWS Global Accelerator | 23.3 | 9 | 6 | 3 | C2-07 |
| 66 | ★★ | Amazon FSx | 22.6 | 11 | 4 | 8 | C2-04 |
| 67 | ★★ | Amazon Rekognition | 21.8 | 12 | 3 | 9 | C2-13 |
| 68 | ★★ | AWS Compute Optimizer | 21.6 | 11 | 4 | 5 | C2-10 |
| 69 | ★★ | Amazon SQS | 21.4 | 12 | 3 | 8 | C2-11 |
| 70 | ★★ | Internet Gateway | 20.1 | 11 | 3 | 7 | C2-06 |
| 71 | ★★ | Amazon SNS | 20.1 | 11 | 3 | 7 | C2-11 |
| 72 | ★★ | AWS Transit Gateway | 20.1 | 8 | 5 | 3 | C2-07 |
| 73 | ★★ | AWS Application Discovery Service | 20.1 | 8 | 5 | 3 | C2-14 |
| 74 | ★★ | AWS Application Migration Service | 19.9 | 12 | 2 | 10 | C2-14 |
| 75 | ★★ | Amazon ECS | 19.4 | 13 | 1 | 12 | C2-03 |
| 76 | ★★ | Amazon Lightsail | 18.6 | 11 | 2 | 9 | C2-02 |
| 77 | ★★ | AWS Health | 18.1 | 9 | 3 | 7 | C2-10 |
| 78 | ★★ | Amazon Detective | 18.0 | 12 | 1 | 11 | C2-09 |
| 79 | ★★ | AWS Cost and Usage Report | 16.7 | 11 | 1 | 10 | C2-15 |
| 80 | ★★ | AWS KMS | 16.4 | 8 | 3 | 5 | C2-09 |
| 81 | ★★ | AWS Migration Hub | 15.8 | 9 | 2 | 7 | C2-14 |
| 82 | ★★ | AWS CodeDeploy | 15.8 | 9 | 2 | 7 | C2-11 |
| 83 | ★★ | Migration Evaluator | 15.5 | 6 | 4 | 2 | C2-14 |
| 84 | ★★ | AWS Glue | 15.0 | 7 | 3 | 4 | C2-12 |
| 85 | ★★ | Amazon SageMaker AI | 14.5 | 8 | 2 | 6 | C2-13 |
| 86 | ★★ | Amazon Polly | 14.5 | 8 | 2 | 6 | C2-13 |
| 87 | ★★ | VPC Endpoint | 14.0 | 9 | 1 | 8 | C2-06 |
| 88 | ★★ | AWS Certificate Manager | 13.5 | 10 | 0 | 10 | C2-09 |
| 89 | ★★ | AWS Backup | 13.2 | 7 | 2 | 5 | C2-04 |
| 90 | ★★ | AWS PrivateLink | 12.6 | 8 | 1 | 7 | C2-07 |
| 91 | ★ | Amazon ElastiCache | 12.2 | 9 | 0 | 9 | C2-05 |
| 92 | ★ | NAT Gateway | 11.3 | 7 | 1 | 6 | C2-06 |
| 93 | ★ | Amazon EventBridge | 11.3 | 7 | 1 | 6 | C2-11 |
| 94 | ★ | AWS Batch | 10.9 | 7 | 1 | 5 | C2-02 |
| 95 | ★ | VPC Peering | 9.9 | 6 | 1 | 5 | C2-06 |
| 96 | ★ | Amazon Comprehend | 9.9 | 6 | 1 | 5 | C2-13 |
| 97 | ★ | AWS Control Tower | 9.9 | 6 | 1 | 5 | C2-10 |
| 98 | ★ | Amazon EKS | 9.4 | 7 | 0 | 7 | C2-03 |
| 99 | ★ | AWS Wavelength | 9.4 | 7 | 0 | 7 | C2-14 |
| 100 | ★ | AMI | 9.2 | 6 | 1 | 3 | C2-02 |
| 101 | ★ | Amazon Kendra | 9.1 | 4 | 2 | 2 | C2-13 |
| 102 | ★ | Amazon Personalize | 8.6 | 5 | 1 | 4 | C2-13 |
| 103 | ★ | Amazon Kinesis | 8.1 | 6 | 0 | 6 | C2-12 |
| 104 | ★ | Amazon DocumentDB | 8.1 | 6 | 0 | 6 | C2-05 |
| 105 | ★ | AWS CodeBuild | 8.1 | 6 | 0 | 6 | C2-11 |
| 106 | ★ | Amazon Lex | 7.2 | 4 | 1 | 3 | C2-13 |
| 107 | ★ | AWS Step Functions | 7.2 | 4 | 1 | 3 | C2-11 |
| 108 | ★ | IAM Policy | 6.8 | 2 | 2 | 1 | C2-08 |
| 109 | ★ | Amazon EMR | 6.8 | 5 | 0 | 5 | C2-12 |
| 110 | ★ | AWS CodePipeline | 6.8 | 5 | 0 | 5 | C2-11 |
| 111 | ★ | Amazon Transcribe | 5.9 | 3 | 1 | 2 | C2-13 |
| 112 | ★ | AWS Transfer Family | 5.4 | 4 | 0 | 4 | C2-14 |
| 113 | ★ | AWS RAM | 5.4 | 4 | 0 | 4 | C2-10 |
| 114 | ★ | EC2 Instance Store | 4.5 | 2 | 1 | 1 | C2-04 |
| 115 | ★ | Amazon Textract | 4.0 | 3 | 0 | 3 | C2-13 |
| 116 | ★ | Amazon OpenSearch Service | 4.0 | 3 | 0 | 3 | C2-12 |
| 117 | ★ | Amazon API Gateway | 4.0 | 3 | 0 | 3 | C2-11 |
| 118 | ★ | AWS Data Exchange | 4.0 | 3 | 0 | 3 | C2-12 |
| 119 | ★ | AWS SCT | 3.2 | 1 | 1 | 0 | C2-14 |
| 120 | ★ | AWS Lake Formation | 2.7 | 2 | 0 | 2 | C2-12 |
| 121 | ★ | Capacity Reservations | 1.4 | 1 | 0 | 1 | C2-15 |
| 122 | ★ | Amazon SES | 1.4 | 1 | 0 | 1 | C2-11 |
| 123 | ★ | AWS Well-Architected Tool | 1.4 | 1 | 0 | 1 | C2-16 |
| 124 | ★ | AWS IoT Core | 1.4 | 1 | 0 | 1 | C2-13 |
| 125 | ★ | Service Control Policies | 1.0 | 1 | 0 | 0 | C2-08 |
| 126 | ★ | Amazon Translate | 0.0 | 0 | 0 | 0 | C2-13 |
| 127 | ★ | Amazon ECR | 0.0 | 0 | 0 | 0 | C2-03 |