Programmatic Development using Apex and Visualforce in Lightning Experience exam dumps, DEX-450 dumps torrent

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q158-Q163):

NEW QUESTION # 158
A developer creates a batch Apex job to update a large number of records, and receives reports of the job timing out and not completing.
What is the first step towards troubleshooting the issue?

A. Check the asynchronous job monitoring page to view the job status and logs.
B. Check the debug logs for the batch job.
C. Disable the batch job and recreate it with a smaller number of records.
D. Decrease the batch size to reduce the load on the system.

Answer: A

Explanation:
When a batch Apex job is timing out and not completing, the first step in troubleshooting is to check the job's status and logs in the Asynchronous Job Monitoring page. This page provides information about all asynchronous Apex jobs, including batch Apex, scheduled Apex, future methods, and queueable Apex.
Option D: Check the asynchronous job monitoring page to view the job status and logs.
Correct Approach.
The Asynchronous Job Monitoring page (also known as the Apex Jobs page) in Salesforce Setup allows developers to see the status of all asynchronous Apex jobs.
By checking this page, the developer can see whether the batch job is still running, failed, or completed.
If the job has failed, the page provides error messages that can help identify the cause of the failure.
This is the first step to determine what is happening with the batch job.
While checking the debug logs can provide detailed information, it is more efficient to first check the job status on the asynchronous job monitoring page.
Debug logs can be large and may not be generated if the job did not execute properly.
After identifying the job's status and any error messages, the developer can then decide if checking debug logs is necessary.
Option C: Decrease the batch size to reduce the load on the system.
Possible Solution, Not First Step.
Decreasing the batch size may help prevent timeouts by processing fewer records at a time.
However, before making changes to the batch job, the developer should first investigate the cause of the timeout.
Option A: Disable the batch job and recreate it with a smaller number of records.
Not Recommended as First Step.
Disabling and recreating the batch job without understanding the issue may not resolve the problem.
It's important to diagnose the issue before making changes.
Conclusion:
The first step towards troubleshooting a batch Apex job that is timing out is to check the asynchronous job monitoring page to view the job's status and any error messages.
This provides immediate insight into what is happening with the job and guides the next steps in troubleshooting.
Reference:
Monitor Asynchronous Apex
Apex Jobs Page
Option B: Check the debug logs for the batch job.
Next Step, Not First Step.

NEW QUESTION # 159
A developer needs to create a custom button for the Account object that, when clicked, will perform a series of calculation and redirect the user to a custom visualforce page.
Which three attributes need to be defined with values in the <apex:page> tag to accomplish this?
Choose 3 answers

A. standard Controller
B. extensions
C. Action
D. readOnly
E. renderAs

Answer: A,C,E

NEW QUESTION # 160
What is the result of the following code snippet?
public word doWork(Account acct) {
for (Integer i = 0; i <= 2007 i++) {
insert acct;
}

A. 200 Accounts are inserted.
B. Account is inserted.
C. 201 Accounts are inserted.
D. Accounts are inserted.

Answer: D

NEW QUESTION # 161
Which code in a Visualforce page and/or controller might present a security vulnerability?

A. <apex:outputfield value="(!ctrl.userinput)" rendered="(!isfditable}" />
B. <apex:outputText value="{!SCurrentPage.parameters.useriInput}" />
C. <apex:outputField value="{'ctrl.userInput}" />
D. <apex:outputText escape="false" value="{!sCurrentPage.parameters.userInput}" />

Answer: D

NEW QUESTION # 162
What are two features of Heroku Connect? Choose 2 answers

A. Near Real Time Sync between Heroku Postgres and Salesforce
B. Real Time Sync between Salesforce and Postgres
C. Displaying data from an external data store via External Objects.
D. Bidirectional syncs, allowing data to be written into Salesforce

Answer: A,D

NEW QUESTION # 163
......

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