Task Statement 4.1: Configure the Collection, Aggregation, and Storage of Logs and Metrics. DOP-C02 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A company runs a custom application on an EC2 instance. The application writes logs to a file in /var/log/myapp/. The DevOps team wants to collect these logs in real time and send them to CloudWatch Logs. What is the simplest way to achieve this?

   • AUse the AWS SDK in the application to send logs directly to CloudWatch Logs.
   • BUse the AWS CLI to manually upload the log file to CloudWatch Logs.
   • CCreate a cron job that runs every minute to upload the log file to CloudWatch Logs.
   • DInstall the CloudWatch agent on the instance and configure it to tail the log file.
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2. 2foundation · easy

   Which CloudWatch Logs feature allows you to stream log events in real time to other AWS services?

   • ALog subscription
   • BLog group export
   • CMetric filter
   • DCloudWatch alarm
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4. 3application · medium

   A DevOps engineer needs to deliver CloudWatch metrics to an external monitoring tool that requires data in a specific format. The tool can consume data from Amazon S3. The engineer wants to avoid writing custom code. What is the simplest way to get CloudWatch metrics into S3?

   • AUse the CloudWatch API to periodically fetch metrics and write them to S3 using a script.
   • BCreate a CloudWatch metric stream that delivers metrics to an Amazon Kinesis Data Firehose delivery stream that writes to S3.
   • CCreate a CloudWatch Logs subscription that delivers metrics to S3.
   • DUse the CloudWatch agent to send metrics directly to S3.
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5. 4foundation · easy

   Which type of AWS KMS key can be used to encrypt CloudWatch Logs data?

   • AAWS owned key
   • BSymmetric key only
   • CCustomer managed key
   • DAWS managed key
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6. 5application · medium

   A DevOps engineer needs to track the number of HTTP 500 errors returned by an application that writes JSON access logs to CloudWatch Logs. The logs contain a field named "status" with the HTTP status code. The engineer wants to create a CloudWatch metric that counts these errors and then alert when the count exceeds a threshold in a 5-minute period. What is the most efficient way to accomplish this?

   • AUse CloudWatch Logs Insights to run a query that counts status=500 events and publish the result as a metric.
   • BCreate a Lambda function that reads the log stream and publishes a custom metric for each 500 error.
   • CCreate a metric filter on the log group that matches { $.status = 500 } and set the metric value to 1.
   • DConfigure the CloudWatch agent to parse the log file and emit a metric named HTTP_500_Count.
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