[Apr-2024] Exam Sure Pass Salesforce Certification with DEX-450 exam questions
Real Salesforce DEX-450 Exam Questions Study Guide
NEW QUESTION # 122
Given the code below:
What should a developer do to correct the code so that there is no chance of hitting a governor limit?
- A. Rework the code and eliminate the for loop.
- B. combine the two SELECT statements into a single SOQL statement.
- C. Add a WHERE clause to the first SELECT SOQL statement.
- D. Add a LIMIT clause to the first SELECT SOQL statement.
Answer: D
NEW QUESTION # 123
Given the following trigger implementation:
trigger leadTrigger on Lead (before update){
final ID BUSINESS_RECORDTYPEID = '012500000009Qad';
for(Lead thisLead : Trigger.new){
if(thisLead.Company != null && thisLead.RecordTypeId != BUSINESS_RECORDTYPEID){ thisLead.RecordTypeId = BUSINESS_RECORDTYPEID;
}
}
}
The developer receives deployment errors every time a deployment is attempted from Sandbox to Production.
What should the developer do to ensure a successful deployment?
- A. Ensure BUSINESS_RECORDTYPEID is pushed as part of the deployment components.
- B. Ensure a record type with an ID of BUSINESS_RECORDTYPEID exists on Production prior to deployment.
- C. Ensure the deployment is validated by a System Admin user on Production.
- D. Ensure BUSINESS_RECORDTYPEID is retrieved using Schema.Describe calls.
Answer: B
NEW QUESTION # 124
A developer uses a loop to check each Contact in a list. When a Contact with the Title of
"Boss" is found, the Apex method should jump to the first line of code outside of the for loop.
Which Apex solution will let the developer implement this requirement?
- A. Exit
- B. Continue
- C. break;
- D. Next
Answer: C
NEW QUESTION # 125
Refer to the following code snippet for an environment that has more than 200 Accounts belonging to the Technology' industry:
which three statements are accurate about debug logs?
Choose 3 answers
- A. Debug log levels are cumulative, where FINE log level includes all events logged at the DEBUG, INFO, WARN, and ERROR levels.
- B. The maximum size of a debug log is 5 MB.
- C. System debug logs are retained for 24 hours.
- D. Debug logs can be set for specific users, classes, and triggers.
- E. Only the 20 most recent debug logs for a user are kept.
Answer: C,D,E
NEW QUESTION # 126
A developer wants to create a custom object to track Customer Invoices.How should Invoices and Accounts be related to ensure that all Invoices are visible to everyone with access to an Account?
- A. The Invoice should have a Master-Detail relationship to the Account
- B. The Account should have a Lookup relationship to the Invoice
- C. The Invoice should have a Lookup relationship to the Account Previous
- D. The Account should have a Master-Detail relationship to the Invoice.
Answer: A
NEW QUESTION # 127
In which order does Salesforce execute events upon saving a record?
- A. Before Triggers; Validation Rules; After Triggers; Workflow Rules; Assignment Rules; Commit
- B. Before Triggers; Validation Rules; After Triggers; Assignment Rules; Workflow Rules; Commit
- C. Validation Rules; Before Triggers; After Triggers; Workflow Rules; Assignment Rules; Commit
- D. Validation Rules; Before Triggers; After Triggers; Assignment Rules; Workflow Rules; Commit
Answer: B
NEW QUESTION # 128
In the following example, which sharing context will myMethod execute when it is invoked?
- A. Sharing rules will be enforced for the running user.
- B. Sharing rules will not be enforced for the running user.
- C. Sharing rules will be Inherited from the calling context.
- D. Sharing rules will be enforced by the instantiating class.
Answer: C
NEW QUESTION # 129
The following automations already exist on the Account object;
* A workflow rule that updates a field when a certain criteria is met
* A custom validation on a field
* A How that updates related contact records
A developer created a trigger on the Account object.
What should the developer consider while testing the trigger code?
- A. A workflow rule field update will cause the custom validation to run again.
- B. The trigger may fire multiple times during a transaction.
- C. The flow may be launched multiple times.
- D. Workflow rules will fire only after the trigger has committed all DML operations to the database.
Answer: B
NEW QUESTION # 130
Which three code lines are required to create a Lightning component on a Visualforce page? Choose 3 answers
- A. <apex:slds/>
- B. $Lightning.createComponent
- C. $Lightning.useComponent
- D. <apex:includeLightning/>
- E. $Lightning.use
Answer: B,D,E
NEW QUESTION # 131
What is the debug output of the following Apex code?
Decimal theValue;
System.debug (theValue);
- A. 0
- B. null
- C. Undefined
- D. 0.0
Answer: B
NEW QUESTION # 132
A developer creates an Apex helper class to handle complex trigger logic. How can the helper class warn users when the trigger exceeds DML governor limits?
- A. By using Messaging.sendEmail() to continue toe transaction and send an alert to the user after the number of DML statements is exceeded.
- B. By using AmexMessage.Messages() to display an error message after the number of DML statements is exceeded.
- C. By using PageReference.setRedirect() to redirect the user to a custom Visualforce page before the number of DML statements is exceeded.
- D. By using Limits.getDMLRows() and then displaying an error message before the number of DML statements is exceeded.
Answer: D
NEW QUESTION # 133
A developer wants to list all of the Tasks for each Account on the Account detail page. When a task is created for a Contact, what does the developer need to do to display the Task on the related Account record?
- A. Create a Workflow rule to relate the Task to the Contact's Account.
- B. Nothing. The Task cannot be related to an Account and a Contact.
- C. Nothing. The task is automatically displayed on the Account page.
- D. Create an Account formula field that displays the Task information.
Answer: C
NEW QUESTION # 134
A developer needs to provide a Visualforce page that lets users enter Product-specific details during a Sales cycle. How can this be accomplished? (Choose 2)
- A. Download a Managed Package from the AppExhange that provides a custom Visualforce page to modify.
- B. Copy the standard page and then make a new Visualforce page for Product data entry.
- C. Download an Unmanaged Package from the AppExchange that provides a custom Visualforce page to modify.
- D. Create a new Visualforce page and an Apex controller to provide Product data entry.
Answer: C,D
NEW QUESTION # 135
A developer creates a method in an Apex class and needs to ensure that errors are handled properly.What would the developer use? (There are three correct answers.)
- A. A try/catch construct
- B. ApexPages.addErrorMessage()
- C. .addError()
- D. A custom exception
- E. Database.handleException()
Answer: A,C,D
NEW QUESTION # 136
Which two are best practices when it comes to component and application event handling? Choose 2 answers
- A. Reuse the event logic in a component bundle, by putting the logic in the helper. (Missed)
- B. Handle low-level events in the event handler and re-fire them as higher-level events. (Missed)
- C. Use component events to communicate actions that should be handled at the application level.
- D. Try to use application events as opposed to component events.
Answer: A,B
NEW QUESTION # 137
What are two testing consideration when deploying code from a sandbox to production? Choose 2 answers
- A. 75% of test must execute without failure
- B. Apex code requires 75% coverage
- C. Apex code requires 100% coverage
- D. 100% of test must execute without failure
Answer: B,D
NEW QUESTION # 138
When can a developer use a custom Visualforce page in a Force.com application? (Choose 2)
- A. To modify the page layout settings for a custom object
- B. To create components for dashboards and layouts
- C. To deploy components between two organizations
- D. To generate a PDF document with application data
Answer: B,D
NEW QUESTION # 139
A workflow updates the value of a custom field for an existing Account.
How can a developer access the updated custom field value from a trigger?
- A. By writing an After Insert trigger and accessing the field value from Trigger.old
- B. By writing an After Update trigger and accessing the field value from Trigger.old
- C. By writing, a Before Update trigger and accessing the field value from Trigger.new
- D. By writing a Before Insert trigger and accessing the field value from Trigger.new
Answer: C
NEW QUESTION # 140
A developer of Universal Containers is tasked with implementing a new Salesforce application that must be able to by their company's Salesforce administrator.
Which three should be considered for building out the business logic layer of the application? Choose 3 answers
- A. Process Builder
- B. validation Rules
- C. Scheduled Jobs
- D. Workflows
- E. Invocable Actions
Answer: A,B,D
NEW QUESTION # 141
A Lightning component has a wired property, searchResults, that stores a list of Opportunities. Which definition of the Apex method, to which the searchResults property is wired, should be used?
- A. @AuraEnabled(cacheable=true)
public List<Opportunity> search(String term) { /*implementation*/ } - B. @AuraEnabled(cacheable=true)
public static List<Opportunity> search(String term) { /* implementation*/ } - C. @AuraEnabled(cacheable=false)
public static List<Opportunity> search(String term) { /*implementation*/ } - D. @AuraEnabled(cacheable=false)
public List<Opportunity> search(String term) { /*implementation*/ }
Answer: B
NEW QUESTION # 142
A developer working on a time management application wants to make total hours for each timecard available to applications users. A timecard entry has a Master-Detail relationship to a timecard. Which approach should the developer use to accomplish this declaratively?
- A. A visualforce page that calculates the total number of hours for a timecard and displays it on the page.
- B. A Process Builder process that updates a field on the timecard entry is created.
- C. A Roll-up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard.
- D. An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field.
Answer: C
NEW QUESTION # 143
Universal Containers stores the availability date on each Line Item of an Order and Orders are only shipped when all of the Line Items are available. Which method should be used to calculate the estimated ship date for an Order?
- A. Use a LATEST formula on each of the latest availability date fields.
- B. Use a CEILING formula on each of the Latest availability date fields.
- C. Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.
- D. Use a Max Roll-Up Summary field on the Latest availability date fields.
Answer: D
NEW QUESTION # 144
A developer has created a Visualforce Page and Apex Controller that uses the With Sharing keyword. The page will be used of by Sales Managers and should only display Accounts owned by Sales Representatives who report to the running Sales Manager. The organization-wide sharing for Accounts is set to Private. Which additional set of stops should the developer take?
- A. Create two Profiles, one Permission Set, and one Role.
- B. Create one Profile, two Permission Sets, and one Role.
- C. Create one Profile, one Permission Set, and one Role.
- D. Create one Profile, one Permission Set, and two Roles.
Answer: D
NEW QUESTION # 145
What is an accurate statement about variable scope? (Choose 3)
- A. Sub-blocks cannot reuse a parent block's variable name.
- B. A variable can be defined at any point in a block.
- C. Parallel blocks can use the same variable name.
- D. Sub-blocks can reuse a parent block's variable name if it's value is null.
- E. A static variable can restrict the scope to the current block of its value is null.
Answer: A,B,C
NEW QUESTION # 146
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Salesforce DEX-450 certification is recognized globally and is highly valued in the industry. It demonstrates that the certified professional has the knowledge and skills required to build custom applications on the Salesforce platform using Apex and Visualforce. Programmatic Development using Apex and Visualforce in Lightning Experience certification also demonstrates that the professional is committed to keeping up-to-date with the latest developments in the Salesforce platform.
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