20+ practice questions focused on Cloud Technology and Services — one of the most tested topics on the AWS Certified Cloud Practitioner CLF-C02 exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Cloud Technology and Services PracticeA company stores product images in an Amazon S3 bucket. New images are accessed frequently for the first 30 days, but access drops sharply after that. The company wants to automatically optimize storage costs by moving data between access tiers without any manual intervention or upfront lifecycle policy setup. Which Amazon S3 storage class should the company use to meet these requirements?
Explanation: Amazon S3 Intelligent-Tiering is the correct choice because it automatically moves objects between access tiers based on changing access patterns, with no lifecycle rules required. It is designed for data with unknown or changing access patterns, automatically optimizing storage costs. This meets the requirement of optimizing storage costs for images that are frequently accessed for the first 30 days and then rarely accessed afterward, without any manual intervention or upfront setup.
A company runs a read-heavy web application that retrieves the same product catalog data from an Amazon RDS database hundreds of times per second. The database is experiencing high CPU utilization due to repeated reads of the same information. The company wants to reduce the load on the database and improve application response time without modifying the application code or adding more database capacity. The solution must be fully managed and provide a low-latency, in-memory cache for frequently accessed data. Which AWS service should the company use?
Explanation: Amazon ElastiCache is a fully managed in-memory caching service (Redis or Memcached) that can reduce read load on RDS. However, integrating ElastiCache typically requires modifying the application to check the cache before querying RDS. The 'without code changes' requirement in the stem is not satisfied by ElastiCache, but it is still the most appropriate option; DAX is for DynamoDB, CloudFront is a CDN, and SQS is a queue.
A company collects sensor data from IoT devices and stores the data in Amazon S3. For the first 90 days, the data is accessed frequently for real-time analysis. After 90 days, the data is rarely accessed but must be retrievable within 24 hours for compliance audits. After 365 days, the data must be retained for legal purposes but can be deleted after 7 years. Which S3 storage class should the company use for the data from day 91 to day 365 to minimize storage costs while meeting the retrieval time requirement?
Explanation: From day 91 to day 365, data is rarely accessed but must be retrievable within 24 hours. S3 Glacier Flexible Retrieval offers lower storage costs than Standard-IA and provides retrieval times of 3-5 hours (standard) or 5-12 hours (bulk), both within the 24-hour requirement. Standard-IA provides millisecond retrieval but at higher storage cost, so it doesn't minimize cost.
A company runs a web application on Amazon EC2 instances behind an Application Load Balancer (ALB). The application normally handles 1,000 requests per second, but occasionally experiences unpredictable spikes of up to 10,000 requests per second for a few minutes. The Auto Scaling group is configured with a maximum capacity of 2,000 instances, which is insufficient to handle the spikes. The company must ensure that no requests are lost during these spikes without requiring manual scaling. Which solution should the company implement?
Explanation: Configure Amazon CloudFront in front of the ALB. CloudFront can cache responses at edge locations and absorb traffic spikes, reducing the request load on the ALB and EC2 origin without manual scaling. SQS cannot be used as an ALB target for synchronous HTTP traffic. Predictive scaling cannot reliably handle unpredictable spikes. Manual failover to on-premises instances requires manual intervention and does not meet the requirement.
A company needs to migrate 80 TB of on-premises data to Amazon S3. Their internet connection is 100 Mbps and transferring this much data over the internet would take months. Which AWS service allows them to migrate this data physically without relying on internet bandwidth?
Explanation: AWS Snowball Edge is a physical data transport solution designed for large-scale data migrations when network transfer is impractical. With 80 TB of data and a 100 Mbps connection, internet transfer would take approximately 74 days (over two months), making Snowball Edge the correct choice as it allows you to ship the data on a ruggedized device directly to AWS, bypassing internet bandwidth entirely.
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Practice all Cloud Technology and Services questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Cloud Technology and Services. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Cloud Technology and Services questions on the CLF-C02 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Cloud Technology and Services is tested as part of the AWS Certified Cloud Practitioner CLF-C02 blueprint. Practicing with targeted Cloud Technology and Services questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Cloud Technology and Services is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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