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Question 178 - DVA-C02 discussion

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A company has a web application that is hosted on Amazon EC2 instances The EC2 instances are configured to stream logs to Amazon CloudWatch Logs The company needs to receive an Amazon Simple Notification Service (Amazon SNS) notification when the number of application error messages exceeds a defined threshold within a 5-minute period

Which solution will meet these requirements?

A.
Rewrite the application code to stream application logs to Amazon SNS Configure an SNS topic to send a notification when the number of errors exceeds the defined threshold within a 5-minute period
Answers
A.
Rewrite the application code to stream application logs to Amazon SNS Configure an SNS topic to send a notification when the number of errors exceeds the defined threshold within a 5-minute period
B.
Configure a subscription filter on the CloudWatch Logs log group. Configure the filter to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period.
Answers
B.
Configure a subscription filter on the CloudWatch Logs log group. Configure the filter to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period.
C.
Install and configure the Amazon Inspector agent on the EC2 instances to monitor for errors Configure Amazon Inspector to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period
Answers
C.
Install and configure the Amazon Inspector agent on the EC2 instances to monitor for errors Configure Amazon Inspector to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period
D.
Create a CloudWatch metric filter to match the application error pattern in the log data. Set up a CloudWatch alarm based on the new custom metric. Configure the alarm to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period.
Answers
D.
Create a CloudWatch metric filter to match the application error pattern in the log data. Set up a CloudWatch alarm based on the new custom metric. Configure the alarm to send an SNS notification when the number of errors exceeds the defined threshold within a 5-minute period.
Suggested answer: D

Explanation:

CloudWatch for Log Analysis:CloudWatch is the best fit here because logs are already centralized. Here's the process:

Metric Filter: Create a metric filter on the CloudWatch Logs log group. Design a pattern to specifically identify application error messages.

Custom Metric: This filter generates a new custom CloudWatch metric (e.g.,ApplicationErrors). This metric tracks the error count.

CloudWatch Alarm: Create an alarm on theApplicationErrorsmetric. Configure the alarm with your desired threshold and a 5-minute evaluation period.

SNS Action: Set the alarm to trigger an SNS notification when it enters the alarm state.

CloudWatch Metric Filters:https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/MonitoringLogData.html

CloudWatch Alarms:https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/AlarmThatSendsEmail.html

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asked 16/09/2024
Shafqat Balouch
29 questions
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