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Salesforce Certified Platform Developer I - Winter '18 Release Exam

1 of 6. In which two ways does Lightning Data Service (LDS) eliminate redundant server calls in Lightning Components?

Choose 2 answers
 
A.  LDS allows each component within an app to make independent, but concurrent, calls to perform CRUD operations on the same record data.
B.  LDS can be configured as a publisher hub with simple Apex code.
C.  LDS identifies requests that involve the same record data and sends a single shared data request that updates all relevant components.
D.  LDS acts as a publisher hub that notifies components of data changes.

Answer : A,C


2 of 6. In which two ways does Salesforce DX facilitate source-driven development?
  Choose 2 answers
 
A.  Salesforce DX provides an integrated, end-to-end life cycle designed for high-performance agile development.
B.  Salesforce DX provides an efficient, end-to-end life cycle designed for waterfall development.
C.  Salesforce DX shifts the source of truth from the org to the version control system.
D.  Salesforce DX allows agile, local test runs.

 Answer : A,C
3 of 6. Which Content Security Policy (CSP) configuration is required to access the Streaming API and call Apex methods from within a Lightning container component?
  
A.  CSP set to Lightning
B.  CSP set to custom
C.  CSP set to minimum

D.  CSP set to low

 Answer :  D

 4 of 6. What is the correct annotation to indicate test classes that can run in parallel?
  
A.  @isTest(isParallel=true)
B.  @isTest
C.  @isTest(runParallel=true)

D.  @isTest(isParallelrun=true)

 Answer : A

 5 of 6. What are two valid scenarios for automatic recompilation of Apex classes?
  Choose 2 answers
  
A.  Specific Apex classes are automatically recompiled before completing a metadata deploy.
B.  All Apex classes are automatically recompiled before completing a metadata deploy.
C.  All Apex classes are automatically recompiled when Apex transactions are run.
D.  All Apex classes are automatically recompiled before a package is installed.
Answer B,D

 6 of 6. Which two statements are true regarding Lightning component JavaScript code validation?
  Choose 2 answers
  
A.  Code validations can be temporariy disabled by setting the component version to API 40.0 or earlier.
B.  Code validations enforce all ESlint rules.
C.  Code validations are applied only to components set to API version 41.0 and later.
D.  The validation service ensures good software design and prevent bugs.
 Mark this item for later review.
 Answer: A,C
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