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The KCNA Book

You're reading from   The KCNA Book Pass the Kubernetes and Cloud Native Associate exam in style

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Product type Paperback
Published in Jun 2023
Publisher
ISBN-13 9781835080399
Length 197 pages
Edition 1st Edition
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Author (1):
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Nigel Poulton Nigel Poulton
Author Profile Icon Nigel Poulton
Nigel Poulton
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Toc

Table of Contents (12) Chapters Close

1. Getting started 2. 1: Setting the scene FREE CHAPTER 3. 2: Cloud native architecture 4. 3: Container orchestration 5. 4: Kubernetes Fundamentals 6. 5: Cloud native application delivery 7. 6: Cloud native observability 8. The exam 9. 8: Sample test
10. What next Appendix A: Chapter quiz answers 1. Appendix B: Sample Test answers

Exam essentials

Telemetry
Telemetry is jargon for the monitoring-related outputs generated by a system. They include logs, metrics, and traces. High-quality telemetry is vital for troubleshooting, tweaking, and understanding the behaviour of cloud native apps.
OpenTelemetry
The OpenTelemetry project is an incubating CNCF project that defines specifications and instrumentation aimed at making high-quality telemetry part of all cloud native apps.
Logs
Logs are a form of telemetry relating to application events and are one of the best places to look when things break. For example, application restarts, failed logins, dropped connections, and more will all be logged as events. Log data is often structured and formatted as JSON to make it easy to read and search. It’s also commonly categorised according to severity, with common severity levels including info, warning, error, and critical.
Metrics
Metrics are usually performance related data captured over long...
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