Google Analytics GA4 Event and Conversion Tracking 2 — Questions and Answers
Question 1: In GA4, how do you mark an existing event as a conversion (key event)?
- Toggle it on in Admin > Events or Key events (Correct answer)
- Edit the gtag.js config snippet
- Submit it to Google Ads first
- Rename the event with a 'conv_' prefix
Correct answer: Toggle it on in Admin > Events or Key events
You flag any event as a key event/conversion using the toggle in the Admin Events (or Key events) list.
Question 2: What is the maximum number of event-scoped custom dimensions allowed in a standard GA4 property?
- 25
- 50 (Correct answer)
- 100
- 200
Correct answer: 50
Standard GA4 properties allow up to 50 event-scoped custom dimensions.
Question 3: Which GA4 event is automatically collected when a user first opens an app or visits a site?
- session_start
- first_visit (Correct answer)
- page_view
- user_engagement
Correct answer: first_visit
The first_visit event is triggered automatically the first time a user visits or opens the app.
Question 4: What is the purpose of GA4's 'Modify event' feature?
- Rename or alter incoming events without code changes (Correct answer)
- Delete historical event data
- Export events to BigQuery
- Schedule events to fire later
Correct answer: Rename or alter incoming events without code changes
Modify event lets you change parameters or rename events at collection time without editing the website code.
Question 5: How many parameters can be sent with a single GA4 event by default (excluding automatic ones)?
- 10
- 25 (Correct answer)
- 50
- Unlimited
Correct answer: 25
GA4 allows up to 25 custom parameters per event.
Question 6: Which reserved event name prefix is NOT allowed for custom events in GA4?
- my_
- app_
- ga_ (Correct answer)
- user_
Correct answer: ga_
Prefixes like 'ga_', 'google_', and 'firebase_' are reserved and cannot be used for custom events.
Question 7: After marking an event as a conversion in GA4, when does conversion counting begin?
- Retroactively for all past data
- Only going forward from that point (Correct answer)
- After 24 hours of validation
- Once linked to Google Ads
Correct answer: Only going forward from that point
Conversion counting only applies to events collected after the event is marked, not retroactively.
Google Analytics GA4 Event and Conversion Tracking 2
In GA4, how do you mark an existing event as a conversion (key event)?