Challenge your understanding of AWS S3 monitoring and logging using CloudWatch metrics and tools. This quiz is designed to reinforce your knowledge of best practices, metrics, configurations, and event tracking for effective S3 storage monitoring.
Which type of S3 storage metric is automatically collected for all buckets and visible in CloudWatch without additional configuration?
Explanation: Storage metrics provide size and object count data and are enabled by default for all buckets without extra setup. Request metrics require enabling on each bucket to collect operation data. Cost allocation metrics are related to billing, not S3-specific metrics. Bucket policy metrics is not a standard S3 metric type, making it an incorrect option.
What must you do before you can view S3 request metrics such as PUT or GET operation counts in CloudWatch for a bucket?
Explanation: Request metrics are not collected by default and require that you explicitly enable them on a per-bucket basis. Upgrading storage tiers or changing storage classes does not affect metrics collection. Deleting and recreating the bucket is unnecessary and unrelated to metric visibility.
Suppose you want to get notified if PUT operations to your bucket exceed 500 in an hour. What CloudWatch feature should you use?
Explanation: A CloudWatch alarm is designed to monitor chosen metrics and send notifications when thresholds are exceeded. Dashboards show metric visualizations but do not alert. Event streams process operational events, not metric thresholds. Metric Math is for complex computations but does not generate notifications directly.
If you want to record detailed information about requests made to objects in your S3 bucket for auditing purposes, which feature should you enable?
Explanation: Access logging captures comprehensive request details and stores log files in a target bucket, which is best for auditing access. Versioning saves object versions, not access information. Lifecycle policies manage data retention, while Requester pays controls who pays for data access, not logging.
You want to trigger a workflow when a new object is uploaded to a bucket. Which S3 feature allows you to send notifications based on this event?
Explanation: Event notifications can alert external systems or services when certain actions, like uploads, occur in a bucket. Replication is for copying objects, not event handling. CORS relates to cross-origin requests settings, and data transfer acceleration is focused on speeding up transfers, not workflow triggering.
Which statement best describes the benefit of using CloudWatch dashboards with S3 metrics?
Explanation: Dashboards consolidate and display key metrics from one or more S3 buckets, helping users monitor storage, requests, and more visually. They do not influence security (encryption or public access) and have no effect on transfer speeds between buckets. The other options describe unrelated features.
Which logging feature helps track individual API requests, including GET and PUT, for detailed object-level access monitoring in S3?
Explanation: CloudTrail data events can log individual operations such as GET and PUT for detailed monitoring at the object level. Lifecycle rules manage object transitions and retention, not logging accesses. Intelligent tiering is a storage cost-optimization feature. While server access logging provides summaries, it does not offer the granularity of object-level data events.
What is the default granularity (frequency) for S3 request metrics when enabled in CloudWatch?
Explanation: When enabled, S3 request metrics are collected and reported every minute for high resolution. Five minutes or one hour are default intervals for some other metrics but not for S3 request data. One day is too infrequent and not supported for S3 request granularity.
If you want to monitor the total number of bytes downloaded from a bucket, which S3 CloudWatch metric should you check?
Explanation: BytesDownloaded indicates the volume of data fetched from a bucket, helping track data egress. BytesUploaded tracks uploads, NumberOfObjects counts stored items, and 4xxErrors tracks client-side error request counts rather than download statistics.
After you disable S3 request metrics on a bucket, which of the following will happen?
Explanation: Disabling request metrics prevents new request data (like GET or PUT counts) from being pushed to CloudWatch, but it does not delete objects or affect other features. Storage metrics and replication continue as usual, so the distractors describe effects that won't happen.