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| Section | Objectives |
|---|---|
| Advanced Apex Programming | - Advanced Apex design patterns
|
| Testing, Debugging, and Deployment | - Test-driven development
|
| Integration and APIs | - External system integration
|
| Asynchronous Apex | - Scheduled and future methods
|
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NEW QUESTION # 143
A developer is asked to find a way to store secret data with an ability to specify which profiles and users can access which secrets. What should be used to store this data?
Answer: A
Explanation:
When a requirement involves storing configuration or "secret" data that needs to vary based on the specific user or profile, Hierarchy Custom Settings (Option C) are the correct choice. Unlike Custom Metadata (Option B), which is available to the entire organization regardless of the user, Hierarchy Custom Settings use a built-in logic to provide values based on the "most specific" level defined.
The hierarchy follows a specific order: User > Profile > Organization. If a secret key is defined at the User level, that value is returned for that specific user. If not, the system looks for a value defined at the user's Profile level, and finally falls back to the Organization-wide default. This allows a developer to store sensitive keys or flags and restrict or vary them dynamically based on the current user's identity.
Custom Metadata is better suited for application-wide configurations that need to be deployable via packages, but it lacks the granular per-user/per-profile override capability inherent to Hierarchy Custom Settings. Static Resources (Option A) are public to anyone with access to the resource, and Cookies (Option D) are stored on the client side, making them insecure for "secret" data. Therefore, Custom Settings provide the best balance of security and hierarchical flexibility for this use case.
NEW QUESTION # 144
Universal Containers wants to use an external Web Service provided by a third-party vendor to validate that shipping and billing addresses are correct. The current vendor uses basic password authentication, but Universal Containers might switch to a different vendor who uses OAuth.
What would allow Universal Containers to switch vendors without updating the code to handle authentication?
Answer: B
NEW QUESTION # 145
A developer is writing a Jest test for a Lightning web component that conditionally displays child components based on a user's checkbox selections. What should the developer do to properly test that the correct components display and hide for each scenario?
Answer: A
Explanation:
Comprehensive and Detailed 150 to 14250 words of Explanation:
Jest tests for Lightning Web Components (LWC) run in a virtual browser environment called JSDOM. In this environment, the document.body persists across individual test cases (it or test blocks) within a single test file.
If a developer mounts a component to the DOM in the first test and doesn't remove it, the component's state and DOM elements will still be present when the second test starts, leading to "leaked" data and unreliable test results.
To ensure test isolation-which is critical for testing conditional rendering-the developer must clean up the DOM after every test. The standard best practice is to use the afterEach() hook (Option D). Within this hook, the developer should execute a loop that removes all child elements from document.body. This ensures that each test begins with a completely "clean slate." Option A is too vague; "teardown block" is a general term, but afterEach() is the specific Jest implementation.
Option B is for organizing tests but doesn't handle DOM cleanup. Option C is unnecessary as the LWC testing utility manages the JSDOM instance. By using afterEach() to reset the DOM, the developer can accurately verify that the component correctly shows or hides child components based on the specific inputs provided in each individual test case.
NEW QUESTION # 146
Consider the following code snippet:
A developer needs to built an interactive Aura component that responds to the user's input by hiding or showing sections according the user preferences.
What are two best practices the developer can implement to hide or show the powerVserView and s-rar.daraVserView inner components, based on the value of the attribute isPowexUser?
Choose 2 answers
A)
B)
C)
D)
Answer: D
NEW QUESTION # 147
How should a developer verify that a specific Account record is being tested in a test class for a Visualforce controller?
Answer: A
Explanation:
Explanation/Reference: https://salesforce.stackexchange.com/questions/48336/test-class-apex-page-parameters
NEW QUESTION # 148
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