Web & App Analytics Interview Questions & AnswersAnalytics & Measurement Interview Questions & Answers

GA4 Events vs. Parameters

GA4 (May 2025 docs) states that every event can carry up to ______ parameters by default.

25

unlimited

50

100

Google’s 2025 developer page reminds that each event supports 25 parameters without additional configuration.

Which reserved GA4 parameter supplies the page title for automatically collected events?

link_domain

event_name

page_title

content_group

The dev reference lists page_title as a default event parameter populated automatically for web streams.

The recommended approach in 2025 for sending user‑generated content metadata is via ______ scoped custom dimension.

Session

User

Event

Item

GA4 recommends mapping the parameter to an Event‑scoped custom dimension for on‑page content data.

Google’s April 2025 tagging guide notes that parameters are case‑______.

Insensitive

Converted to lowercase

Sensitive

Randomised

Parameter keys must match the exact case used in custom definition names.

Which Measurement Protocol field must mirror the 'event_name' in order to attribute parameters correctly?

event

cid

engagement_time_msec

uid

The event_name (event) ties all accompanying parameters to the correct GA4 event hit.

Items array parameters such as 'item_id' and 'price' are sent under which 'event_name' for ecommerce in 2025?

scroll

view_item

login

purchase

The purchase event bundles item‑level parameters for each product in the transaction.

GA4 automatically collects the parameter 'session_id' on events that include ______.

engaged_session

scroll depth

gclid parameter

ga_session_id cookie value

The analytics.js sets ga_session_id which populates session_id parameter in events.

'link_id' and 'link_domain' parameters appear on ______ events.

page_view

scroll

click

file_download

Outbound click events include link metadata parameters as listed in the 2025 automatic events help page.

Setting 'value' parameter on a key event is primarily used for ______ reports in GA4.

Tech

Realtime

Monetisation and ROI

DebugView

The generic value parameter feeds monetisation calculations for non‑commerce conversions.

According to 2025 quota guidelines, parameter values longer than ______ characters are truncated.

256

100

50

500

Google trims excessively long parameter strings beyond 100 characters to conserve resources.

Starter

Review the concepts and try again.

Solid

You’re on the right track – refine details to master this area.

Expert!

Excellent understanding of the material.

To excel at GA4 Events vs Parameters Interview Questions, you’ll need to explain when to use each data model and how they impact your reporting. Start with the Web & App Analytics Interview Questions hub for clear examples and sample prompts. Next, sharpen your real-time insight skills by reviewing the Real-Time Dashboards practice questions, test your metric calculations in the Engagement Rate Math quiz, and explore advanced tagging setups with the Enhanced Measurement deep dive. Working through these resources will give you the confidence to discuss when and why to choose events over parameters in any analytics interview.

Hi, I am Aniruddh Sharma. I’m a digital and growth marketing professional who loves transforming complex strategies into simple, interactive learning experiences. At QuizCrest, I design marketing quizzes that cover SEO, Google Ads, Meta Ads, analytics,…

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