Preview channels in Firebase - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is a Preview Channel in Firebase Hosting?

A Preview Channel is a temporary URL where you can test your website changes before making them live. It helps you see how your site looks and works without affecting the main site.

beginner

How long does a Firebase Preview Channel stay active by default?

By default, a Firebase Preview Channel stays active for 7 days before it expires and is deleted automatically.

beginner

Why use Preview Channels instead of deploying directly to production?

Preview Channels let you test changes safely without affecting your live website. This helps catch errors and get feedback before users see the updates.

beginner

How do you create a Preview Channel using Firebase CLI?

You run the command firebase hosting:channel:deploy CHANNEL_ID where CHANNEL_ID is a name you choose for your preview.

intermediate

Can multiple Preview Channels exist at the same time?

Yes, you can create multiple Preview Channels to test different versions or features of your site independently.

What is the main purpose of a Firebase Preview Channel?

A To backup your website data

B To permanently host your website

C To speed up website loading

D To test website changes before going live

Preview Channels provide a temporary URL to test changes safely before publishing them to the live site.

How do you deploy to a Preview Channel using Firebase CLI?

A firebase hosting:channel:deploy CHANNEL_ID

B firebase hosting:disable

C firebase init hosting

D firebase deploy --only hosting

The command 'firebase hosting:channel:deploy CHANNEL_ID' creates or updates a preview channel with your site changes.

How long does a Firebase Preview Channel last by default?

A 30 days

B 1 day

C 7 days

D Indefinitely

Preview Channels expire automatically after 7 days unless extended or deleted earlier.

Can you have multiple Preview Channels active at the same time?

A Yes, multiple preview channels can exist

B No, only one preview channel is allowed

C Only if you pay for a premium plan

D Only for Firebase projects with less than 5 users

Firebase allows multiple preview channels so you can test different versions or features independently.

What happens if you deploy directly to production without using a Preview Channel?

A Your changes are tested automatically

B Your live site updates immediately

C Your site is backed up first

D Your site is put into maintenance mode

Deploying directly to production updates your live website immediately, which can cause issues if there are errors.

Explain what a Firebase Preview Channel is and why it is useful.

Think about how you test changes before sharing with others.

Describe the steps to create and use a Preview Channel with Firebase CLI.

Focus on the command and what happens after deployment.