Objective 2.3
CDLDiscuss how smart analytics, business intelligence tools, and streaming analytics can add value in different business use cases.
Objective 2.3 sits in Exploring Data Transformation with Google Cloud, which carries 18% of the Cloud Digital Leader exam. The questions below are original, written from the official objective title above, and each explanation cites the Google Cloud page it rests on.
Objective title verbatim from the official objectives. Google Cloud exam page ↗
A worked example
Shown solved, with the whole explanation open: this is what every question here carries.
A team wants the producers of events to stop waiting on the services that process them. What does Pub/Sub provide?
Correct.
Concept
Coupling in time is a separate problem from coupling in interface. Removing the wait lets each side fail, scale and deploy without the other noticing.
Why A
Pub/Sub is an asynchronous and scalable messaging service that separates services producing messages from services processing them, with latency typically near 100 milliseconds.
Source
Google Cloud: What is Pub/Sub?, checked August 2026Pub/Sub is an asynchronous and scalable messaging service that decouples services producing messages from services processing those messages. Pub/Sub allows services to communicate asynchronously, with latencies typically on the order of 100 milliseconds.
Now you: objective 2.3 questions
No account needed. The explanation opens when you answer.
Sample question 1 of 3
A team comparing Pub/Sub with a partition-based messaging system asks how the two differ on concurrency. What does Pub/Sub do?
Sample question 2 of 3
A company wants to send messages between a mobile app and a backend service. What does Google Cloud point to in place of Pub/Sub?
Sample question 3 of 3
A team runs instances of a service in several zones, all subscribing to one common topic. What happens when the service fails in one of those zones?
Full Cloud Digital Leader question bank coming
We’re writing the complete bank from the official objectives right now. Leave your email and we’ll tell you when it ships, nothing else, ever.
Read the sources
These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.