Online Access Free PDII Exam Questions

No.# It's "Queries" not "Records" bro

No.# Correct answer is A.
Execute a SOQL query for Amount, Probability, Stage, and Close Date on the OpportunityHistory object.

OpportunityHistory is a standard Salesforce object that automatically tracks changes to key fields like Amount, Stage, Probability, and Close Date.
You can query it directly to retrieve historical change records with timestamps, perfect for displaying field change timelines.

No.# Correct Answer Should be >>
Import the @salesforce/i18n module and use the firstDayOfWeek internationalization property.

This option is not mention for above question.

Explanation:
UserInfo.getLocale() – Returns locale like "en_US" but not the first day of the week. You’d still need to map it yourself manually, which is unnecessary.

https://salesforce.stackexchange.com/questions/292069/how-to-find-first-day-of-the-week-by-locale?
https://developer.salesforce.com/docs/platform/lwc/guide/create-i18n.html

No.# Ans is b Use "FOR UPDATE" in a soql query

Account acc = [SELECT Id, Is_Registered__c FROM Account WHERE Id = :accountId FOR UPDATE];
if (!acc.Is_Registered__c) {
acc.Is_Registered__c = true;
// ...set other fields...
update acc;
}

Using 'FOR UPDATE' in your SOQL query will place a row-level lock on the queried Account record. This ensures that:
No other transaction can modify that record until your transaction completes.
It prevents race conditions where two users could read the same unregistered Account and both proceed to update it simultaneously.


Database.update(account, false) --> false suppresses errors for partial updates but does not prevent record collision or overwrites.
Add a try/catch block --> Useful for handling errors after they occur, but does not prevent concurrent modification.
Use upsert instead of update --> upsert is used to insert or update based on record existence — not useful for handling concurrent updates to existing records.

No.# The correct answer is: C. Use @Cache annotation

✅ Explanation:
When the requirement is to show the cached results that were first accessed, even if the data is updated elsewhere, you're essentially looking to retain and serve stale data temporarily to maintain consistency during user navigation. Let's break down each option:

🔹 A. Use OFFSET in SOQL queries
What it does: OFFSET is used to skip a number of rows in a SOQL query, useful for pagination.

Limitation: It doesn’t cache data—every query hits the database and gets fresh results, which violates the requirement of showing cached data.

✅ Good for pagination, ❌ bad for caching.

🔹 B. Use OFFSET WITH CACHE in SOQL queries
Fact: This is not a valid SOQL syntax.

There’s no such thing as OFFSET WITH CACHE in Salesforce SOQL.

❌ Invalid option.

🔹 C. Use @Cache annotation
Usage: The @AuraEnabled(cacheable=true) annotation (for Lightning Web Components or Aura) caches the Apex method result on the client-side.

Once data is fetched, the same result is served from the cache when the method is re-invoked unless explicitly refreshed.

✅ Best fit for requirement: Ensures that even if backend data changes, users still see the same cached data during pagination or navigation.

🔹 D. Use a StandardSetController
Usage: Useful for standard pagination with VF pages.

It retrieves live data on each query.

It doesn’t cache results, so if data changes in the backend, the user sees new data, not what was originally accessed.

❌ Not aligned with the caching requirement.

✅ Final Answer: C. Use @Cache annotation
Would you like a sample Apex method and LWC example that demonstrates this behavior?...

I passed my PDII exam at first try.

No.# Correct but the correct syntaxe must be : import updateAccounts from "@salesforce/apex/namespace.AccountController.updateAccounts";

PDII file is 100% valid!!Took test today and passed. PDII exam is difficult.

No.# Option A
import firstDayOfWeek from '@salesforce/i18n/firstDayOfWeek';
https://developer.salesforce.com/docs/platform/lwc/guide/create-i18n.html

It's so interesting to learn the PDII exam. Thanks to those who achieve a better success who just encouraged me to get prepared and pass the PDII exam!

No.# Correct answer
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_triggers_order_of_execution.htm

No.# C D E are correct
https://developer.salesforce.com/docs/platform/lwc/guide/apex-call-imperative.html

No.# Should be "C".

No.# A is correct
https://help.salesforce.com/s/articleView?id=sf.opp_history.htm&type=5

No.# A, B is correct
https://trailhead.salesforce.com/content/learn/modules/asynchronous_apex/async_apex_batch

No.# A B E is correct
https://www.infallibletechie.com/2016/08/convertcurrency-in-salesforce.html#:~:text=Use%20convertCurrency()%20in%20a,organization%20is%20multi%2Dcurrency%20enabled.&text=Use%20convertCurrency()%20in%20the,fields%20to%20the%20user's%20currency.

No.# B is correct
https://help.salesforce.com/s/articleView?id=sf.code_dev_console_view_system_log.htm&type=5

No.# D is correct

https://developer.salesforce.com/docs/atlas.en-us.integration_patterns_and_practices.meta/integration_patterns_and_practices/integ_pat_batch_data_sync.htm

No.# B is correct
https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_controller_extension.htm

No.# A and D is correct
https://developer.salesforce.com/docs/atlas.en-us.platform_events.meta/platform_events/platform_events_publish.htm