Salesforce Updated CRT-450 Exam Questions and Answers by sylvia

Option B: Apex Flex Queue.

Monitors batch jobs waiting for execution.

Option C: Apex Jobs.

Shows all asynchronous Apex jobs, including batch and future methods.

Why Not Other Options:

Option A: Developer Console doesn't provide job status.

Option D: Paused Flow Interviews are unrelated to Apex jobs.

References:

Apex Jobs Monitoring:

"The Apex Jobs page displays information about all Apex jobs—batch jobs, future methods, scheduled Apex, and Apex test jobs."— Salesforce Help: Monitor Your Scheduled Jobs

In the provided code snippet:

Boolean isOK;

Integer x;

String theString = 'Hello';

if (isOK == false && theString == 'Hello') {

x = 1;

} else if (isOK == true && theString == 'Hello') {

x = 2;

} else if (isOK != null && theString == 'Hello') {

x = 3;

} else {

x = 4;

}

Variable Initialization:

Boolean isOK; → Declared but not initialized, so isOK is null.

Integer x; → Declared but not initialized.

String theString = 'Hello'; → Initialized to 'Hello'.

Evaluation of Conditions:

First Condition:

if (isOK == false && theString == 'Hello')

isOK == false → Since isOK is null, this evaluates to false.

Overall condition: false && true → false.

Second Condition:

else if (isOK == true && theString == 'Hello')

isOK == true → Since isOK is null, this evaluates to false.

Overall condition: false && true → false.

Third Condition:

else if (isOK != null && theString == 'Hello')

isOK != null → Since isOK is null, this evaluates to false.

Overall condition: false && true → false.

Else Block:

else {

x = 4;

}

Since none of the previous conditions are met, the else block is executed.

x is assigned the value 4.

Conclusion:

The variable x is assigned the value 4.

References:

Variable Initialization:

"Instance variables are initialized to null. Local variables are not initialized, so their value is undefined until you assign a value."— Apex Developer Guide: Variables

Conditional Statements and Null Values:

"In Apex, comparisons with null are straightforward. If you compare null to a value, the result is false."— Apex Developer Guide: Expressions

Defining the Order Number field as an External ID and marking it as Unique ensures:

External ID:

Allows the field to be used for matching during data import.

Helps in upsert operations.

Unique:

Ensures no duplicate Order Numbers exist.

Maintains data integrity.

Why Not Other Options:

Option A: Direct Lookup is not a valid field type for this scenario.

Option B: Lookup fields create relationships, not suitable here.

Option D: Indirect Lookup is used with external objects.

References:

External IDs:

"An external ID is a custom field that has the External ID attribute, meaning that it contains unique record identifiers from a system outside of Salesforce."— Salesforce Help: External ID Fields