Medium CLF-C02 practice questions

A data analytics team needs to run SQL queries against large volumes of log files stored in Amazon S3. The team wants to analyze the data without having to load it into a database or manage any infrastructure. Which AWS service should they use?

A company has a web application that receives customer orders. The application currently writes orders directly to a database, but during peak traffic periods, the database becomes overwhelmed and order processing fails. The development team wants to decouple the order submission from order processing to ensure no orders are lost during traffic spikes. Which AWS service should they implement?

A company runs a web application on EC2 instances in a single AWS Region. The operations team wants to protect the application from the failure of a single data center while keeping all resources within that same Region. What should the team do?

A finance team wants to be notified by email whenever the company's AWS spending is forecasted to exceed $5,000 for the month, so they can take action before the bill is finalized. Which AWS tool lets them define this threshold and receive proactive alerts?

A healthcare startup must confirm that AWS meets specific regulatory attestations (such as HIPAA and SOC) before storing patient data. The compliance officer wants an authoritative, self-service way to understand which AWS services and Regions are covered by these third-party audit programs. Which statement about AWS compliance programs is accurate and helps the officer proceed?

A healthcare company stores millions of documents in Amazon S3 and is concerned that some buckets may contain personally identifiable information (PII) such as patient records that are not properly classified or protected. They want an automated service that uses machine learning to discover, classify, and alert on sensitive data stored in S3. Which AWS service should they use?

A financial services company runs a public-facing web application behind an Application Load Balancer and Amazon CloudFront. After experiencing a large-scale distributed denial-of-service (DDoS) attack, leadership wants enhanced protection that includes 24/7 access to a DDoS response team and financial protection against scaling charges caused by attacks. Which AWS service should the company use?

A company is running a critical application on AWS that uses third-party software installed on EC2 instances. The development team needs guidance on interoperability issues between AWS services and this third-party software. They also require a response time of less than 1 hour for production system outages. Which AWS Support plan is the most cost-effective option that meets these requirements?

A company wants an automated way to receive recommendations that flag security gaps in their AWS account, such as security groups with unrestricted access to specific ports, exposed access keys, and whether MFA is enabled on the root account. Which AWS service provides these best-practice checks?

A retail company wants to build a conversational chatbot for its website that can understand customer questions in natural language, recognize intent (such as checking order status), and respond with voice and text. Which AWS service is designed specifically to build this conversational interface?

A gaming company needs to store and retrieve player leaderboard data that updates frequently during gameplay. The application must support millisecond response times for both read and write operations, handle millions of concurrent users, and automatically scale based on demand. The data structure is simple key-value pairs with player IDs and scores. Which AWS database service should the company use?

A retail company is building an e-commerce application that requires a database to store shopping cart data. The cart data needs to be retrieved and updated with millisecond latency as customers add or remove items. The data structure is simple key-value pairs, and the application must scale automatically to handle unpredictable traffic spikes during sales events. Which AWS database service should the company use?

A startup wants to launch a new product feature but is unsure whether customer demand will justify the investment. With their current on-premises data center, provisioning new servers takes six to eight weeks. Which benefit of the AWS Cloud most directly addresses this challenge?

A company currently runs its applications in an on-premises data center where it purchases servers, networking equipment, and storage arrays up front every few years. The CFO wants to move to AWS specifically to stop making large periodic hardware purchases and instead pay only for the computing resources the company actually consumes each month. Which cloud economics concept BEST describes this financial benefit?

A retail company currently operates its e-commerce platform on-premises with servers sized to handle peak holiday traffic. During most of the year, the servers run at only 20% capacity. The company is considering migrating to AWS. Which cloud economics principle would provide the MOST significant cost benefit for this scenario?

A gaming startup based in North America is launching a new mobile game. Based on early marketing, they expect strong demand from players in Europe and Asia at launch and want those players to experience low latency without the startup building or leasing data centers in those regions. Which benefit of the AWS Cloud most directly addresses this need?

A retail company runs its own data center and must purchase servers months in advance of major sales events. Some years they buy too much hardware that sits idle, and other years they run out of capacity during peak demand and lose sales. Which benefit of the AWS Cloud most directly addresses this problem?

A DevOps team needs to provision identical development, testing, and production environments consisting of EC2 instances, security groups, and an RDS database. They want to define this infrastructure in a template file that can be version-controlled and reused to create the environments consistently and repeatably. Which AWS service should they use?

A financial services company must demonstrate to auditors exactly who made changes to AWS resources, what actions were taken, and when each action occurred across all AWS accounts. Which AWS service provides a record of API calls and account activity for this purpose?

A development team manually builds, tests, and deploys their application every time a developer pushes code changes. They want an AWS service that automatically orchestrates the entire release process, connecting source, build, and deploy stages into a single automated workflow. Which service should they use?

A compliance officer at a financial services company needs to continuously assess, audit, and evaluate the configurations of AWS resources over time. Specifically, they want to see a history of how a security group's rules have changed and be alerted when a resource drifts from a desired configuration. Which AWS service should they use?

A company runs multiple projects across different departments using various AWS resources. The finance team needs to track costs separately for each department to allocate budgets accurately. Which AWS feature should they implement to categorize and track costs by department?

A company runs multiple projects across different departments using a single AWS account. The finance team needs to track AWS costs separately for each department to implement an internal chargeback system. Which AWS feature should they use to categorize resources and generate detailed cost reports by department?

A finance team needs the most comprehensive and granular set of AWS cost and usage data available, including hourly line-item detail for every service and resource, so they can ingest it into their own data warehouse for custom analysis. Which AWS billing resource should they use?

A financial analyst at a manufacturing company needs to analyze AWS spending patterns over the past 12 months to identify cost trends and forecast future expenses for budget planning. The analyst requires detailed visualizations of costs broken down by service, region, and linked accounts. Which AWS tool should the analyst use?