Cloud Monitoring overview in GCP - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Cloud Monitoring in Google Cloud Platform?

Cloud Monitoring is a service that collects metrics, events, and metadata from Google Cloud resources and applications to help you understand system performance and health.

beginner

Name two key features of Cloud Monitoring.

1. Dashboards to visualize metrics.
2. Alerts to notify when issues occur.

beginner

What is a metric in Cloud Monitoring?

A metric is a time-ordered set of data points that measure a specific aspect of a resource or application, like CPU usage or request count.

intermediate

How does Cloud Monitoring alerting help your system?

Alerting sends notifications when metrics cross thresholds, helping you quickly detect and fix problems before users notice.

beginner

What is the role of dashboards in Cloud Monitoring?

Dashboards display visual charts and graphs of metrics, making it easy to see system health and trends at a glance.

What does Cloud Monitoring primarily collect?

A Metrics, events, and metadata

B Source code

C User passwords

D Billing information

Cloud Monitoring collects metrics, events, and metadata to track system performance and health.

Which feature helps you get notified when something goes wrong?

A Logging

B Dashboards

C Alerting

D Storage

Alerting sends notifications based on metric thresholds to inform you of issues.

What is a metric in Cloud Monitoring?

A A time-ordered set of data points measuring resource behavior

B A type of alert

C A visual dashboard

D A user account

Metrics are data points collected over time that measure resource or application behavior.

Which Google Cloud service is used to visualize metrics?

A Cloud Storage

B Cloud SQL

C Cloud Functions

D Cloud Monitoring Dashboards

Cloud Monitoring Dashboards provide visual charts and graphs of metrics.

Why is Cloud Monitoring important for your applications?

A To write code faster

B To detect and fix issues quickly

C To store backups

D To manage user permissions

Cloud Monitoring helps detect and fix issues quickly by tracking system health and sending alerts.

Explain what Cloud Monitoring is and why it is useful.

Think about how you check if a machine or app is working well.

Describe the roles of dashboards and alerts in Cloud Monitoring.

One shows info, the other warns you.

Practice

1. What is the main purpose of Cloud Monitoring in Google Cloud Platform?

easy

A. To watch and track the health and performance of cloud resources

B. To create virtual machines automatically

C. To store large amounts of data securely

D. To manage user permissions and roles

Solution

1. Step 1: Understand Cloud Monitoring's role

   Cloud Monitoring is designed to observe and report on the status and performance of cloud resources.

2. Step 2: Compare options with this role

   Options B, C, and D describe other services like Compute Engine, Cloud Storage, and IAM, not monitoring.

3. Final Answer:

   To watch and track the health and performance of cloud resources -> Option A

4. Quick Check:

   Cloud Monitoring = watch cloud health [OK]

Hint: Monitoring means watching resource health and performance [OK]

Common Mistakes:

• Confusing monitoring with storage or VM creation
• Thinking monitoring manages user access
• Assuming monitoring creates resources automatically

2. Which command correctly lists all alert policies using the gcloud tool?

easy

A. gcloud alert-policies show

B. gcloud monitoring alerts list

C. gcloud monitoring alert-policies list

D. gcloud monitoring policies get

Solution

1. Step 1: Recall gcloud command structure for alert policies

   The correct command to list alert policies is under 'monitoring alert-policies list'.

2. Step 2: Verify each option's correctness

   gcloud monitoring alert-policies list matches the correct syntax. Options A, B, and D use incorrect verbs or resource names.

3. Final Answer:

   gcloud monitoring alert-policies list -> Option C

4. Quick Check:

   List alert policies = gcloud monitoring alert-policies list [OK]

Hint: Use 'gcloud monitoring alert-policies list' to see alerts [OK]

Common Mistakes:

• Using 'alerts' instead of 'alert-policies'
• Using 'show' instead of 'list' to list policies
• Mixing command verbs and resource names

3. What will be the output of this command?

gcloud monitoring metrics list --filter="metric.type=compute.googleapis.com/instance/cpu/utilization" --limit=1

medium

A. Deletes the CPU utilization metric

B. Shows an error because the filter syntax is wrong

C. Lists all metrics without filtering

D. Lists one metric descriptor for CPU utilization of Compute Engine instances

Solution

1. Step 1: Understand the command components

   The command lists metric descriptors filtered by CPU utilization metric type, limiting output to one.

2. Step 2: Analyze expected output

   The output will show one metric descriptor matching the filter. No deletion or error occurs.

3. Final Answer:

   Lists one metric descriptor for CPU utilization of Compute Engine instances -> Option D

4. Quick Check:

   Filter + limit = one matching metric listed [OK]

Hint: Filter with --filter and limit results with --limit [OK]

Common Mistakes:

• Assuming filter syntax is invalid
• Expecting all metrics without filter
• Confusing list with delete command

4. You tried to create an alert policy with this command:

gcloud monitoring alert-policies create --notification-channels=1234567890 --condition-display-name="High CPU" --condition-filter="metric.type=compute.googleapis.com/instance/cpu/utilization" --condition-threshold-value=0.8

But it failed. What is the likely error?

medium

A. Missing required flag --condition-aggregations

B. Notification channel ID is invalid or missing

C. Condition filter syntax is incorrect

D. Threshold value must be a string, not a number

Solution

1. Step 1: Check notification channel usage

   The notification channel ID must be a valid existing channel; '1234567890' is likely a placeholder or invalid.

2. Step 2: Verify other flags

   Flags like condition filter and threshold value are syntactically correct; aggregation is optional.

3. Final Answer:

   Notification channel ID is invalid or missing -> Option B

4. Quick Check:

   Invalid notification channel causes failure [OK]

Hint: Check notification channel IDs exist before using [OK]

Common Mistakes:

• Assuming aggregation is always required
• Misformatting condition filter
• Using wrong data type for threshold

5. You want to create a dashboard that shows CPU utilization and memory usage for your Compute Engine instances. Which steps should you follow?

hard

A. Use Cloud Console to create a dashboard, add widgets for CPU and memory metrics, then save

B. Run gcloud commands to create a dashboard and add metrics in one command

C. Create alert policies for CPU and memory, then dashboards are created automatically

D. Use Cloud Storage to upload a JSON file with dashboard configuration

Solution

1. Step 1: Understand dashboard creation process

   Dashboards are created in Cloud Console by adding widgets for desired metrics.

2. Step 2: Evaluate options for dashboard creation

   Use Cloud Console to create a dashboard, add widgets for CPU and memory metrics, then save describes the correct manual process. Run gcloud commands to create a dashboard and add metrics in one command is incorrect as gcloud does not support full dashboard creation in one command. Create alert policies for CPU and memory, then dashboards are created automatically confuses alerts with dashboards. Use Cloud Storage to upload a JSON file with dashboard configuration misuses Cloud Storage.

3. Final Answer:

   Use Cloud Console to create a dashboard, add widgets for CPU and memory metrics, then save -> Option A

4. Quick Check:

   Dashboards made via Console with widgets [OK]

Hint: Create dashboards in Console by adding metric widgets [OK]

Common Mistakes:

• Thinking gcloud can create dashboards fully
• Confusing alert policies with dashboards
• Uploading dashboard configs to Cloud Storage