AWS Certified Cloud Practitioner (CLF-C02) — Practice

测验题目

1. 1. A startup wants the lowest possible compute cost for a fault-tolerant batch workload that can be interrupted. Which EC2 pricing option fits best?
   1. On-Demand Instances
   2. Reserved Instances
   3. Spot Instances
   4. Dedicated Hosts
2. 2. Under the AWS shared responsibility model, who is responsible for patching the guest operating system on an EC2 instance?
   1. AWS
   2. The customer
   3. AWS Support
   4. The hardware vendor
3. 3. Which AWS service provides object storage with virtually unlimited capacity and 11 nines of durability?
   1. Amazon EBS
   2. Amazon EFS
   3. Amazon S3
   4. Amazon FSx
4. 4. Which AWS service automatically distributes incoming traffic across multiple targets?
   1. Amazon Route 53
   2. AWS Global Accelerator
   3. Elastic Load Balancing
   4. Amazon CloudFront
5. 5. A company wants to centrally manage billing across multiple AWS accounts and benefit from volume discounts. Which feature should they use?
   1. AWS Cost Explorer
   2. AWS Organizations with consolidated billing
   3. AWS Budgets
   4. AWS Trusted Advisor
6. 6. Which Well-Architected pillar focuses on running and monitoring systems to deliver business value, and continually improving processes and procedures?
   1. Reliability
   2. Operational Excellence
   3. Performance Efficiency
   4. Cost Optimization
7. 7. Which service should be used to define and provision AWS infrastructure as code using JSON or YAML templates?
   1. AWS CodeDeploy
   2. AWS CloudFormation
   3. AWS OpsWorks
   4. AWS Systems Manager
8. 8. A user needs programmatic, time-limited access to AWS resources from an application running on EC2. What is the recommended approach?
   1. Embed an IAM access key in the application code
   2. Attach an IAM role to the EC2 instance
   3. Share the root account credentials
   4. Store the credentials in a public S3 bucket
9. 9. Which AWS service provides a managed relational database supporting engines such as PostgreSQL and MySQL?
   1. Amazon DynamoDB
   2. Amazon RDS
   3. Amazon Redshift
   4. Amazon ElastiCache
10. 10. A workload requires a globally distributed, low-latency NoSQL key-value store with single-digit millisecond performance. Which service fits?
    1. Amazon RDS
    2. Amazon Aurora
    3. Amazon DynamoDB
    4. Amazon Neptune
11. 11. Which AWS support plan is the minimum requirement to access a dedicated Technical Account Manager (TAM)?
    1. Developer
    2. Business
    3. Enterprise On-Ramp
    4. Basic
12. 12. What is the primary purpose of an AWS Availability Zone?
    1. A single physical data center within a Region
    2. One or more physically separate data centers with redundant power and networking, within a Region
    3. A geographic Region containing multiple countries
    4. An edge location used only by CloudFront
13. 13. Which service helps identify underutilized or idle resources to reduce AWS spend?
    1. AWS Trusted Advisor
    2. Amazon CloudWatch Logs
    3. AWS Config
    4. AWS X-Ray
14. 14. Which characteristic best describes 'elasticity' in cloud computing?
    1. The ability to scale resources up and down to match demand
    2. The maximum throughput of a network link
    3. The geographic spread of data centers
    4. The duration of a Reserved Instance commitment
15. 15. Which AWS service is used to deliver content with low latency by caching it at edge locations worldwide?
    1. Amazon S3
    2. Amazon CloudFront
    3. AWS Direct Connect
    4. AWS Global Accelerator