About this blog

Tech Blog is a personal blog of study notes on zero trust networking, written by UY.

The posts here are lab notes: short write-ups made while preparing for the Zscaler Digital Transformation Engineer (ZDTE) certification, and whatever turns up along the way in ZIA, ZPA and ZDX. Each one tries to explain a single idea clearly enough that it can be redrawn on a whiteboard.

How the posts are written

• Every post starts from official, public material: the exam blueprint, the course outline and the product Help pages.
• Practice questions and examples are original. Nothing is copied from an exam, and no exam content is shared here.
• Numbers that change, such as sizing and limits, are left to the vendor's Help pages. Check them there before relying on them.
• Mistakes get corrected in place, with the post's date updated.

The study group

A small invite-only study group uses a private study planner alongside this blog. It needs a sign-in and is not open to the public.

Independence

UY is a pen name. This blog is written in a personal capacity. It does not speak for any employer and is not affiliated with, sponsored by or endorsed by Zscaler, Inc.