Salesforce Plat-Dev-301 Certification Exam Sample Questions

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Salesforce Plat-Dev-301 Sample Questions:

01. Which approach best supports multi-currency conversions in Apex without hardcoding exchange rates?
a) Use static variables in a utility class for exchange rates
b) Query the DatedConversionRate object
c) Use Custom Settings to store currency values
d) Retrieve rates from the Multi-Currency Metadata API
 
02. Which two techniques allow a Lightning Web Component to communicate events up to its parent?
Select two answers.
a) Using @wire(CurrentPageReference)
b) Using Aura application events
c) Dispatching a CustomEvent from the child
d) Using Lightning Message Service
 
03. A Lightning Web Component requires reactive updates when a record field changes. Which mechanism should the developer use?
a) @wire with getRecord
b) @api properties only
c) Imperative Apex method without refresh
d) LDS form event dispatching
 
04. Which two statements describe benefits of using Named Credentials in Apex integrations?
Select two answers.
a) Removes need to hardcode authentication data
b) Enables automatic retry logic for failed callouts
c) Simplifies callout configuration through a logical alias
d) Forces all callouts to occur synchronously
 
05. Which custom metadata feature supports storing complex reusable logic definitions that must remain versioned across deployments?
a) Protected metadata records
b) External ID fields
c) List Custom Settings
d) Custom Metadata Relationships
 
06. When working with multi-currency orgs, which object should a developer query to retrieve dated exchange rates for historical transactions?
a) CurrencyRate
b) ExchangeRateHistory
c) DatedConversionRate
d) CurrencyType
 
07. Which two steps are required for LWC to import and use a JavaScript file stored as a static resource?
Select two answers.
a) Use loadScript from lightning/platformResourceLoader
b) Import the resource with @salesforce/resourceUrl
c) Reference the static resource directly via <script> in HTML
d) Add the script to the LWC template using inline <script> tags
 
08. A developer notices frequent “Too many SOQL queries: 101” errors due to deeply nested loops. What is the best solution?
a) Add more governor limits via Salesforce Support
b) Increase heap size
c) Reduce test data volume
d) Query all records once and store them in a map
 
09. Which two patterns reduce performance issues associated with callouts in high-throughput systems?
Select two answers.
a) Using Continuations
b) Moving callouts into Queueable jobs
c) Performing sequential callouts inside loops
d) Using dynamic SOQL to batch callouts
 
10. What is the main benefit of using Custom Metadata Types over List Custom Settings?
a) Users can modify values at runtime
b) They support packaging and deployment between orgs
c) They support user-specific overrides
d) They store large data volumes more efficiently

Answers:

Question: 01
Answer: b		 Question: 02
Answer: c, d		 Question: 03
Answer: a		 Question: 04
Answer: a, c		 Question: 05
Answer: d
Question: 06
Answer: c		 Question: 07
Answer: a, b		 Question: 08
Answer: d		 Question: 09
Answer: a, b		 Question: 10
Answer: b

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