Grafana: From Discovery to Expertise

Chapter Introduction and Architecture · Alloy: From Discovery to Expertise

1. Which Alloy component allows scraping Prometheus metrics?

prometheus.scrape otelcol.receiver.prometheus loki.source.file remote_write

Chapter Traces (Tempo) · Alloy: From Discovery to Expertise

2. What is the command to automatically format an Alloy configuration file?

alloy format alloy fmt alloy check alloy --fix

3. Which environment variable defines the default admin password at first launch?

GF_ADMIN_PASSWORD GF_SECURITY_ADMIN_PASSWORD GRAFANA_PASS ADMIN_PWD

4. What is the use of the 'Repeat' mode for a Row or a Panel?

Retry the query in case of error Automatically duplicate the chart for each value selected in a variable (e.g., one graph per disk) Loop a video Nothing

5. Which is NOT a standard visualization type?

Time series Gauge Bar chart Movie Player

6. Can Grafana be used without any time series database?

No, it is mandatory Yes, with plugins like Infinity (JSON/CSV) or SQL sources Only with Excel Only in demo mode

7. What does 'Grafana Scenes' (advanced development) allow you to do?

Create movies Develop complex web applications within Grafana using React Change the dashboard theme Manage home automation

8. What is 'Grafana OnCall'?

A telephony plugin A tool for managing on-call duties and staff rotations following alerts A technical support service A mobile app to see graphs

Chapter Use cases

9. What is the name of the AI query interface launched in 2024?

Grafana Brain Grafana Assistant Monitoring GPT SRE Bot

10. Which transformation allows extracting data from a JSON field contained in a column?

Extract JSON Extract fields Unfold data JSON to Table

11. Which of these keyboard shortcuts allows entering full screen mode (Cycle view mode)?

Ctrl + S d v Shift + F Escape

12. What is the 'Grafana Enterprise' extension for?

To have more colors To access proprietary plugins (ServiceNow, Oracle, Datadog) and advanced security features To remove advertising To install Grafana on Windows

Chapter Introduction and Architecture · Alloy: From Discovery to Expertise

13. What is the main difference between Grafana and Kibana?

Grafana is paid, Kibana is free Kibana is optimized for Elasticsearch logs, Grafana is agnostic and multi-source There is no difference Grafana does not handle logs

Chapter Traces (Tempo) · Alloy: From Discovery to Expertise

14. What is the main advantage of 'Mimir' compared to a standard Prometheus?

Mimir is prettier Mimir offers long-term storage, is horizontally scalable, and multi-tenant Mimir does not require a disk Mimir is free, Prometheus is paid

Chapter Traces (Tempo) · Alloy: From Discovery to Expertise

15. Which of these elements is NOT a natively supported data source by Grafana?

Prometheus Elasticsearch MySQL Adobe Photoshop

Chapter Introduction and Architecture · Alloy: From Discovery to Expertise

16. What is the name of the configuration language used by Grafana Alloy?

YAML River HCL Python

17. The default Grafana authentication at first launch is:

admin / admin root / root admin / password guest / guest

Chapter Traces (Tempo) · Alloy: From Discovery to Expertise

18. What is the command to check the syntax of an Alloy configuration without running it?

alloy test alloy check alloy validate alloy inspect

19. In the 'Table' panel, what does 'Pagination' mean?

Writing a book Dividing a large table into multiple pages to improve readability and performance Sorting by name Hiding the table

20. What is the benefit of 'Provisioning' Data Sources?

It's prettier Automate the creation of connections (e.g., to Prometheus) when deploying via Docker/Kubernetes Hide passwords Speed up queries