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Firebase Hosting & CDN Mastery Hub: The Industry Foundation

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Q1Domain Verified
When deploying a single-page application (SP
`"headers": [ { "source": "**/*.json", "headers": [ {"key": "Cache-Control", "value": "public, max-age=3600"} ] } ]`
`"hosting": { "ignore": [ "firebase.json", ".firebaserc" ] }`
`"rewrites": [ { "source": "**", "destination": "/index.json" } ]`
with client-side routing to Firebase Hosting, which configuration in `firebase.json` is crucial to ensure all routes are correctly served by `index.json` and not treated as 404 errors by the CDN? A) `"public": "build"`
Q2Domain Verified
A core concept of Firebase Hosting's Global CDN is its edge network. If a user in Tokyo accesses a site hosted on Firebase Hosting, and the closest edge server to Tokyo has a cached version of the `app.js` file that is 24 hours old, what is the most likely outcome based on default caching headers and the CDN's behavior?
The edge server will immediately fetch the latest `app.js` from the origin server in the US.
The edge server will serve the cached `app.js` file to the user in Tokyo.
The CDN will issue a `304 Not Modified` response to the user.
The user's browser will be instructed to revalidate the cache with the origin server.
Q3Domain Verified
You are optimizing a Firebase Hosting deployment for a performance-critical e-commerce site. You notice that certain dynamic API responses, which are not intended to be cached by the CDN, are still being served from edge locations with stale dat
Using a wildcard rewrite in `firebase.json` to direct API calls to a Cloud Function.
Which Firebase Hosting configuration, applied judiciously, is the most effective way to prevent this caching of non-static, time-sensitive content? A) Implementing aggressive `Cache-Control: no-cache` headers on the API endpoints at the origin server.
Setting `max-age=0` for all assets served through Firebase Hosting.
Configuring `public` directory settings in `firebase.json` to exclude API response files.

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This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.

This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.

This domain protocol is rigorously covered in our 2026 Elite Framework. Every mock reflects direct alignment with the official assessment criteria to eliminate performance gaps.

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