The answer is that both workspaces are on the same shared capacity node, and the Sales dataset refresh consumes node resources, slowing Marketing. This is correct because in Power BI, shared capacity operates on a multi-tenant architecture where resources like CPU and memory are pooled across workspaces; a long-running refresh in one workspace can throttle performance for others on the same node, even if that workspace is assigned to Premium capacity. The key technical concept here is capacity contention—Premium capacity is isolated from shared capacity nodes, but the scenario describes the Sales workspace on Premium and Marketing on Shared, yet they share the same underlying node, meaning the Premium refresh’s resource drain directly impacts the shared node’s ability to handle Marketing’s queries. For the PL-300 exam, this tests your understanding of capacity isolation versus shared resource pools, a common trap where candidates assume Premium always means full isolation. Remember the memory tip: “Premium is a private pool, but a shared node is a public pool—long swims tire everyone.”
PL-300 Manage and secure Power BI Practice Question
This PL-300 practice question tests your understanding of manage and secure power bi. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Refer to the exhibit. The Power BI admin portal shows capacity usage. The Sales workspace is on Premium capacity and the Marketing workspace is on Shared capacity. The admin notices that the Sales dataset refresh takes 45 minutes, and the Marketing dataset refresh takes 10 minutes. Users complain that during the Sales dataset refresh, the Marketing report becomes slow. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Both workspaces are on the same shared capacity node, and the Sales dataset refresh consumes node resources, slowing Marketing
Option B is correct because on Shared capacity, refreshes can be throttled by system load, and a long-running Premium refresh (Sales) can impact the shared capacity node's performance, affecting Marketing. Option A is wrong because Premium capacity is isolated; it would not directly slow Marketing. Option C is wrong because Marketing is on Shared, not Premium. Option D is wrong because the issue is not about licenses but about capacity contention.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
The Marketing workspace should be moved to Premium capacity to avoid contention
Why it's wrong here
Moving to Premium would isolate it, but the exhibit shows Marketing is on shared, and the issue is on shared.
✗
The Sales dataset is too large and consumes Premium capacity resources, leaving no resources for Marketing
Why it's wrong here
Premium capacity is separate from shared capacity; they don't share resources.
✓
Both workspaces are on the same shared capacity node, and the Sales dataset refresh consumes node resources, slowing Marketing
Why this is correct
On shared capacity, workspaces share underlying resources; a heavy refresh can impact others.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The Marketing dataset requires a Pro license, which is not assigned
Why it's wrong here
License assignment is not the cause of slow performance.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
Moving to Premium would isolate it, but the exhibit shows Marketing is on shared, and the issue is on shared.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which PL-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Manage and secure Power BI — This question tests Manage and secure Power BI — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Both workspaces are on the same shared capacity node, and the Sales dataset refresh consumes node resources, slowing Marketing — Option B is correct because on Shared capacity, refreshes can be throttled by system load, and a long-running Premium refresh (Sales) can impact the shared capacity node's performance, affecting Marketing. Option A is wrong because Premium capacity is isolated; it would not directly slow Marketing. Option C is wrong because Marketing is on Shared, not Premium. Option D is wrong because the issue is not about licenses but about capacity contention.
What should I do if I get this PL-300 question wrong?
Identify which PL-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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