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| Section | Objectives |
|---|---|
| Topic 1: Data Modeling and Management | - Data access and security
|
| Topic 2: Integration and APIs | - External system integration
|
| Topic 3: Testing and Deployment | - Testing strategies
|
| Topic 4: Application Development | - Asynchronous processing
|
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NEW QUESTION # 179
A developer wrote an Apex class to make several callouts to an external system.
If the URLs used in these callouts will change often, which feature should the developer use to minimize changes needed to the Apex class?
Answer: A
Explanation:
The correct feature to use is C, Named Credentials. Named Credentials are a secure way of storing the endpoint and authentication details for callouts to external services. When URLs change frequently, using Named Credentials allows you to manage the endpoint URL in one place without changing the Apex code.
Named Credentials
NEW QUESTION # 180
A Salesforce org has more than 50,000 contacts. A new business process requires a calculation that aggregates data from all of these contact records. This calculation needs to run once a day after business hours.
which two steps should a developer take to accomplish this?
Choose 2 answers
A)
B)
C)
D)
Answer: B,C
Explanation:
When dealing with large datasets and the need to perform complex calculations or data aggregation, batch Apex and scheduling are typically used to efficiently process records in batches and to execute the process during off-peak hours.
Option B is correct because using the @future annotation allows you to run methods in the background, but it is not suitable for operations that need to process more than 50,000 records, which is the governor limit for future methods.
Option C is correct because implementing the Schedulable interface allows you to schedule the class to run at specified times, such as after business hours, which is a requirement for this scenario.
Option A is incorrect because Queueable is typically used for chaining jobs and handling asynchronous processing of individual transactions, not for processing large datasets at scheduled times.
Option D is incorrect because the Database.Batchable interface is what's needed for processing large datasets, not Database.Stateful. The Database.Stateful interface is used to maintain state across batch job transactions.
Salesforce Developer Documentation on Using Batch Apex: Using Batch Apex Salesforce Developer Documentation on Scheduling Apex: Scheduling Apex
NEW QUESTION # 181
Instead of waiting to send emails to support personnel directly from the finish method of a batch Apex process, Universal Containers wants to notify an external system in the event that an unhandled exception occurs.
What is the appropriate publish/subscribe logic to meet this requirement?
Answer: B
Explanation:
Use BatchApexErrorEvent for notifications. It's automatically triggered for unhandled exceptions in batch Apex. No need for manual publishing. External systems can subscribe to this event to receive notifications.
NEW QUESTION # 182
Consider the following code snippet:
As part of the deployment cycle, a developer creates the following test class:
When the test class runs, the assertion fails. Which change should the developer implement in the Apex test method to ensure the test method executes successfully? A)
B)
C)
D)
Answer: B
Explanation:
To ensure that test methods execute successfully and are able to verify the behavior of the code, it is important to set up the proper context and to make sure that the test covers the expected outcomes accurately.
Option B is correct because enclosing the method call within Test.startTest() and Test.stopTest() ensures that any asynchronous operations are completed before the assertions are made. This is crucial when the code being tested is expected to perform operations that may run after the initial transaction, such as future methods, queueable jobs, or batch operations.
Options A, C, and D are incorrect because they do not address the issue of ensuring that all operations are completed before the assertion is made. Option A incorrectly suggests modifying the test setup code, while Options C and D suggest changes that are not related to the test execution flow.
Salesforce Developer Documentation on Testing Best Practices: Apex Testing Best Practices
NEW QUESTION # 183
A developer wrote the following method to find all the test accounts in the org:
What should be used to fix this failing test?
Answer: A
Explanation:
https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_SOSL.htm
NEW QUESTION # 184
......
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