- A
Disable real-time synchronization with Microsoft Entra ID
Why wrong: Entra ID sync is unrelated to app performance.
- B
Replace the model-driven app with a canvas app
Why wrong: Both app types use similar data loading; the issue is delegation.
- C
Increase the Dataverse storage capacity
Why wrong: Storage capacity does not affect query performance.
- D
Implement delegation in the gallery to filter data on the server
Delegation ensures large datasets are processed server-side, improving performance.
- E
Add a search box to filter the gallery by using a delegable filter
Filtering with delegation reduces data load.
Question 838 of 976
Model-Driven App Performance Optimization with Delegation
This PL-900 practice question tests your understanding of demonstrate the capabilities of power apps. 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.
Contoso, Ltd. is a multinational company with a global sales team. They use Microsoft Power Apps to build a model-driven app for managing customer accounts and opportunities. The app uses Microsoft Dataverse as the data source. The sales team accesses the app on mobile devices while traveling. Recently, users have reported that the app is slow when loading large numbers of opportunities. The app has a custom page that displays a list of all opportunities without any filters. The page uses a gallery that loads all records at once. The app also uses several custom connectors to external systems, but the slowness is primarily observed when loading the opportunities list. The IT team has confirmed that the Dataverse environment is in the same region as the users, and network latency is not an issue. They need to improve the performance of the app. Which two actions should the IT team take? (Choose two.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Implement delegation in the gallery to filter data on the server
The correct answers are D and E. Implementing delegation in the gallery (D) ensures that filtering and sorting operations are performed server-side in Dataverse, reducing the amount of data transferred and improving load times. Adding a search box with a delegable filter (E) allows users to search for specific opportunities, and when the filter is delegable, the filtering happens on the server, further reducing the data retrieved. Option A is incorrect because disabling real-time synchronization with Microsoft Entra ID would not address data loading performance and could cause authentication issues. Option B is incorrect because simply replacing a model-driven app with a canvas app does not inherently improve performance; both app types can be optimized, and the issue is with data loading, not the app type. Option C is incorrect because increasing Dataverse storage capacity does not affect query execution speed; it only increases available storage space.
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.
- ✗
Disable real-time synchronization with Microsoft Entra ID
Why it's wrong here
Entra ID sync is unrelated to app performance.
- ✗
Replace the model-driven app with a canvas app
Why it's wrong here
Both app types use similar data loading; the issue is delegation.
- ✗
Increase the Dataverse storage capacity
Why it's wrong here
Storage capacity does not affect query performance.
- ✓
Implement delegation in the gallery to filter data on the server
Why this is correct
Delegation ensures large datasets are processed server-side, improving performance.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Add a search box to filter the gallery by using a delegable filter
Why this is correct
Filtering with delegation reduces data load.
Related concept
Read the scenario before looking for a memorised answer.
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
Similar concept trap
Both app types use similar data loading; the issue is delegation.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Quick reference
Common DNS Record Types
| Record | Purpose | Example |
|---|---|---|
| A | IPv4 address mapping | example.com → 93.184.216.34 |
| AAAA | IPv6 address mapping | example.com → 2606:2800::1 |
| CNAME | Alias to another hostname | www → example.com |
| MX | Mail server for domain | example.com → mail.example.com (priority 10) |
| TXT | Text data (SPF, DKIM, verification) | v=spf1 include:_spf.example.com ~all |
| NS | Authoritative name servers | example.com NS ns1.example.com |
| PTR | Reverse DNS (IP → hostname) | 34.216.184.93.in-addr.arpa → example.com |
| SOA | Zone authority record | Primary NS, admin email, serial, TTL defaults |
What to study next
Got this wrong? Here's your next step.
Identify which PL-900 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.
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FAQ
Questions learners often ask
What does this PL-900 question test?
Demonstrate the capabilities of Power Apps — This question tests Demonstrate the capabilities of Power Apps — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Implement delegation in the gallery to filter data on the server — The correct answers are D and E. Implementing delegation in the gallery (D) ensures that filtering and sorting operations are performed server-side in Dataverse, reducing the amount of data transferred and improving load times. Adding a search box with a delegable filter (E) allows users to search for specific opportunities, and when the filter is delegable, the filtering happens on the server, further reducing the data retrieved. Option A is incorrect because disabling real-time synchronization with Microsoft Entra ID would not address data loading performance and could cause authentication issues. Option B is incorrect because simply replacing a model-driven app with a canvas app does not inherently improve performance; both app types can be optimized, and the issue is with data loading, not the app type. Option C is incorrect because increasing Dataverse storage capacity does not affect query execution speed; it only increases available storage space.
What should I do if I get this PL-900 question wrong?
Identify which PL-900 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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 21, 2026
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