CloudWatch metrics in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the namespace when creating a CloudWatch metric.

AWS

metric = cloudwatch.Metric(namespace=[1], metric_name="PageViews")

Drag options to blanks, or click blank then click option'

A"MyApp/Metrics"

B"AWS/EC2"

C"EC2"

D"CloudWatch"

Attempts:

3 left

💡 Hint

Common Mistakes

Using AWS default namespaces for custom metrics

Omitting quotes around the namespace string

The namespace groups metrics logically. Custom metrics often use a custom namespace like "MyApp/Metrics".

2fill in blank

medium

Complete the code to create a CloudWatch alarm that triggers when CPU utilization exceeds 80%.

AWS

alarm = cloudwatch.Alarm(threshold=[1], comparison_operator="GreaterThanThreshold")

Drag options to blanks, or click blank then click option'

A50

B100

C20

D80

Attempts:

3 left

💡 Hint

Common Mistakes

Setting threshold too low or too high

Confusing comparison operators

The alarm triggers when CPU utilization is greater than 80%, so the threshold must be 80.

3fill in blank

hard

Fix the error in the code to correctly publish a custom metric value to CloudWatch.

AWS

cloudwatch.put_metric_data(Namespace="MyApp", MetricData=[[1]])

Drag options to blanks, or click blank then click option'

A{"MetricName": "Errors", "Values": [5]}

B{"Name": "Errors", "Value": 5}

C{"MetricName": "Errors", "Value": 5}

D{"Metric": "Errors", "Value": 5}

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect key names like 'Name' or 'Metric'

Using 'Values' instead of 'Value'

The MetricData list requires dictionaries with keys MetricName and Value. Option C is correct.

4fill in blank

hard

Fill both blanks to create a CloudWatch metric filter that matches error logs and extracts the error code.

AWS

filter = cloudwatch.MetricFilter(log_group_name=[1], filter_pattern=[2])

Drag options to blanks, or click blank then click option'

A"/aws/lambda/my-function"

B"ERROR"

C"[timestamp, level=ERROR, message, errorCode]"

D"[timestamp, level=INFO, message]"

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect filter pattern syntax

Using wrong log group names

The log group name must be a valid string, and the filter pattern must match error logs and extract the errorCode field.

5fill in blank

hard

Fill all three blanks to define a CloudWatch dashboard widget showing average CPU utilization for an EC2 instance.

AWS

widget = cloudwatch.DashboardWidget(type=[1], properties={"metrics": [[[2], "CPUUtilization", "InstanceId", [3]]], "period": 300, "stat": "Average"})

Drag options to blanks, or click blank then click option'

A"metric"

B"AWS/EC2"

C"i-1234567890abcdef0"

D"log"

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'log' instead of 'metric' for widget type

Using incorrect namespace or instance ID format

The widget type for metrics is "metric". The namespace for EC2 is "AWS/EC2". The instance ID must be a string identifying the EC2 instance.