Salesforce crack4sure crt-450 Actual Questions by Dario q132 vce pdf

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Salesforce CRT-450 Exam Overview :

Exam Name:	Salesforce Certified Platform Developer I (WI25)
Exam Code:	CRT-450 Dumps
Vendor:	Salesforce	Certification:	Developers
Questions:	235 Q&A's	Shared By:	dario

Question 48

Universal Containers has a Visualforce page that displays a table of every Container___c being rented by a given Account. Recently this page is failing with a view state limit because some of the customers rent over 10,000 containers.

What should a developer change about the Visualforce page to help with the page load errors?

Options:

Implement pagination with an OffsetController.

Use JavaScript remoting with SOQL Offset.

Implement pagination with a StandardSetController.

Use lazy loading and a transient List variable.

Discussion

Answer:

Explanation:

To address the view state limit error caused by loading over 10,000 records in a Visualforce page, the developer should implement pagination with a StandardSetController.

StandardSetController: This controller allows developers to easily paginate large sets of records in Visualforce pages.

"A StandardSetController object contains a reference to a list of records with pagination support, similar to the display in a list view."— Apex Developer Guide: StandardSetController Class

Benefits:

Efficient Data Handling: It retrieves only a subset of records at a time, reducing the amount of data held in view state.

Built-in Pagination: Provides methods to navigate through pages of records (next, previous, etc.).

View State Limit: Visualforce pages have a view state limit of 170KB. Loading all records at once exceeds this limit.

"To optimize your Visualforce pages, minimize your use of view state. The view state of a Visualforce page is limited to 170KB."— Visualforce Developer Guide: View State in Visualforce Pages

Why Not Other Options:

A. Implement pagination with an OffsetController: There's no standard OffsetController in Visualforce. Implementing custom pagination with offsets is less efficient and can be complex.

B. Use JavaScript remoting with SOQL Offset: While JavaScript remoting can reduce view state size, using SOQL OFFSET is not efficient for large offsets (over 2,000 records).

"When using OFFSET with a large number of records, performance degrades significantly."— SOQL and SOSL Reference: OFFSET Clause

D. Use lazy loading and a transient List variable: Lazy loading can help, but it doesn't solve the issue of handling large datasets efficiently. Transient variables reduce view state but do not manage data retrieval or pagination.

Conclusion: Implementing pagination with a StandardSetController is the recommended solution to handle large datasets efficiently in Visualforce pages and prevent view state limit errors.

Question 49

A developer wants to import 500 Opportunity records into a sandbox.

Why should the developer choose to use Data Loader instead of Data Import Wizard?

Options:

Data Import Wizard does not support Opportunities.

Data Loader automatically relates Opportunities to Accounts.

Data Loader runs from the developer's browser,

Data Import Wizard can not import all 500 records.

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Question 50

A company decides to implement a new process where every time an Opportunity is created, a follow up Task should be created and assigned to the Opportunity Owner.

What is the most efficient way for a developer to implement this?

Options:

Apex trigger on Task

Record-triggered flow on opportunity

Auto-launched flow on Task

Task actions

Discussion

Answer:

Explanation:

To implement a process where every time an Opportunity is created, a follow-up Task should be created and assigned to the Opportunity Owner, the most efficient method is to use a Record-Triggered Flow on the Opportunity object.

Option B: Record-triggered flow on Opportunity

Declarative Solution: Salesforce Flows provide a powerful, declarative way to automate business processes without writing code.

Triggering Event: The flow is configured to trigger when a new Opportunity record is created.

Create Task Record: The flow includes an element to create a new Task record.

Set the Assigned To field to the Opportunity Owner.

Populate other Task fields as necessary (e.g., Subject, Due Date).

Efficiency: Flows are more efficient than Apex triggers for simple automation and are easier to maintain.

Best Practice: Salesforce recommends using Flows over Workflow Rules and Process Builders for new automations.

[:, Record-Triggered Flows, Flow Builder, Why Other Options are Less Efficient or Incorrect:, Option A: Apex trigger on Task, Incorrect Object: An Apex trigger on Task does not fulfill the requirement, as the trigger needs to be on Opportunity creation., Code Maintenance: Requires writing and maintaining Apex code, which is less efficient for this use case., Reference: Apex Triggers, Option C: Auto-launched flow on Task, Incorrect Trigger: Auto-launched flows do not automatically trigger on record creation unless explicitly invoked., Does Not Meet Requirement: Does not trigger upon Opportunity creation to create a Task., Reference: Auto-Launched Flows, Option D: Task actions, Ambiguous Term: "Task actions" is not a specific Salesforce feature., Possible Misinterpretation: Could refer to Workflow Actions, which are being deprecated in favor of Flows., Reference: Workflow Rules and Actions, Conclusion:, Using a Record-Triggered Flow on the Opportunity object is the most efficient and recommended approach., It leverages Salesforce's declarative tools and aligns with best practices for automation., ]

Question 51

When importing and exporting data into Salesforce, which two statements are true? Choose 2 answers

Options:

Developer and Developer Pro sandboxes have different storage limits.

Bulk API can be used to bypass the storage limits when importing large data volumes in development environments.

Bulk API can be used to import large data volumes in development environments without bypassing the storage limits.

Data import wizard is an application that is instalied on your computer.