Salesforce crt-450 practice test

A developer needs to confirm that a Contact trigger works correctly without changing the
organization's dat
a. what should the developer do to test the Contact trigger?

• A. Use the New button on the Salesforce Contacts Tab to create a new Contact record.
• B. Use the Open execute Anonymous feature on the Developer Console to run an 'insert Contact' DML statement
• C. Use Deploy from the VSCode IDE to display an 'insert Contact' Apex class.
• D. Use the Test menu on the Developer Console to run all test classes for the Contact trigger

Assuming that name; is a String obtained by an <apex:inputText> tag on a Visualforce page.
Which two SOQL queries performed are safe from SOQL injections? Choose 2 answers

• A. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + name.noQuotes() + '%\''; List<Account> results = Database.query(query);
• B. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + String.escapeSingleQuotes(name) + '%\''; List<Account> results = Database.query(query);
• C. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + name + '%\''; List<Account> results = Database.query(query);
• D. String query = '%' + name + '%'; List<Account> results = [SELECT Id FROM Account WHERE Name LIKE :query];

A team of developers is working on a source-driven project that allows them to work independently,
with many different org configurations. Which type of Salesforce orgs should they use for their
development?

• A. Developer sandboxes
• B. Scratch orgs
• C. Full Copy sandboxes
• D. Developer orgs

Which code displays the content of Visualforce page as PDF?

• A. <apex:page renderAs=”pdf”>
• B. <apex:page readeras’’ application/pdf’’>
• C. <apex:page readerAs= ‘’application/pdf’’>
• D. <apex:page contentype ‘’ application/pdf’’)

A developer needs to implement the functionality for a service agent to gather multiple
pieces of information from a customer in order to send a replacement credit card.
Which automation tool meets these requirements?

• A. Flow Builder

What does the Lightning Component framework provide to developers?

• A. Extended governor limits for applications
• B. Prebuilt component that can be reused.
• C. Templates to create custom components.
• D. Support for Classic and Lightning UIS.

Which two are phases in the Salesforce Application Event propagation framework? Choose
2 answers

• A. Bubble
• B. Default
• C. Capture

A developer must create a DrawList class that provides capabilities defined in the Sortable and
Drawable interfaces. public interface Sortable { void sort(); } public interface Drawable { void draw(); }
Which is the correct implementation?

• A. Public class DrawList implements Sortable, Implements Drawable { public void sort() { /*implementation*/} public void draw() { /*implementation*/} ]
• B. Public class DrawList extends Sortable, Drawable { public void sort() { /*implementation*/} public void draw() { /*implementation*/} }
• C. Public class DrawList implements Sortable, Drawable { public void sort() { /*implementation*/} public void draw() { /*implementation*/} }
• D. Public class DrawList extends Sortable, extends Sortable, extends Drawable { public void sort() { /*implementation*/ } public void draw() { /* implementation */}

Given the following Anonymous Block:

Which one do you like?
What should a developer consider for an environment that has over 10,000 Case records?

• A. The transaction will fail due to exceeding the governor limit.
• B. The try/catch block will handle any DML exceptions thrown.
• C. The transaction will succeed and changes will be committed.
• D. The try/catch block will handle exceptions thrown by governor limits.

A developer needs to prevent the creation of Request_c records when certain conditions exist in the
system. A RequestLogic class exists to checks the conditions. What is the correct implementation?

• A. Trigger RequestTrigger on Request (after insert) { RequestLogic.validateRecords {trigger.new}; }
• B. Trigger RequestTrigger on Request (before insert) { RequestLogic.validateRecords {trigger.new}; }
• C. Trigger RequestTrigger on Request (before insert) { if (RequestLogic.isvalid{Request}) Request.addError {'Your request cannot be created at this time.'}; }
• D. Trigger RequestTrigger on Request (after insert) { if (RequestLogic.isValid{Request}) Request.addError {'Your request cannot be created at this time.'}; }