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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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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

Virtualisation

In the distant past we deployed one application per physical server. This was a huge waste of physical resources and company capital. It also delayed the rollout of applications while physical servers were procured, racked, patched into the network, and had an operating system installed.

Virtualisation technologies like VMware came along and opened the door for us to run multiple applications on a single physical server. This meant we didn’t have to buy a new server for every new app, we could deploy apps very quickly to virtual machines on existing servers and avoid all of the following:

  • No more waiting for finance to approve server purchases
  • No more waiting for the datacenter team to rack and cable servers
  • No more waiting for the network team to authorise servers on the network
  • No more waiting for sysadmins to install operating systems

Almost immediately we went from wasting money on over-powered physical servers that took ages to purchase and install...

You have been reading a chapter from
The KCNA Book
Published in: Jun 2023
Publisher:
ISBN-13: 9781835080399
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