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Salesforce DEV 401 Quizzes Dumps preparing certified

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SALESFORCE DEV-401 Certification Evaluation 2

Question 1 of 59

1

What can a lightning component contain in its resource bundle?
Choose 2 answers.

Select one or more of the following:

  • CSS styles scoped to the component.

  • Custom Client-side rendering behavior.

  • Build scripts for minification.

  • Properties files with global settings.

Explanation

Question 2 of 59

1

A custom object has an organization-wide default setting of private with Grant Access Using Hierarchies check box turned off. Which users can select the Sharing button on record for that object?

Select one of the following:

  • The record owner, a user shared to the record, any user above the record owner in the role hierarchy administrator profile

  • The record owner, a user above the record owner in the role hierarchy, and a user with the system

  • Only the record owner and a user with the System Administrator profile

  • The record owner, a user with the System Administrator profile, and a user shared to the record.

Explanation

Question 3 of 59

1

In the Lightning Component framework, which resource can be used to fire events?
Choose 2 answers.

Select one or more of the following:

  • Visualforce controller actions.

  • Third-party web service code.

  • Third-party JavaScript code.

  • JavaScript controller actions.

Explanation

Question 4 of 59

1

A 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 records?

Select one of the following:

  • Create an account formula field that display the task information.

  • Nothing. The task is automatically displayed on the Account page

  • Create a workflow Rule to relate the Task to the Contact`s Account.

  • Nothing. The Task cannot be related to an Account and a Contact.

Explanation

Question 5 of 59

1

A Visualforce page has a standard controller for an object that has a lookup relationship to a parent object.

How can a developer display data from the parent record on the page?

Select one of the following:

  • By using SOQL on the Visualforce page to query for data from the parent record.

  • By using merge field syntax to retrieve data from the parent record.

  • By adding a second standard controller to the page for the parent record.

  • By using a roll-up formula field on the child record to include data from the parent record.

Explanation

Question 6 of 59

1

A developer runs the following anonymous code block:

List<Account> acc = [SELECT ID FROM Account LIMIT 10];

Delete acc;

Database.emptyRecycleBin(acc);

System.debug(Limits.getDMLStatements()+’, ‘+Limits.getLimitDMLStatements());

What is the result?

Select one of the following:

  • 11, 150

  • 150, 2

  • 150, 11

  • 2, 150

Explanation

Question 7 of 59

1

Which statement about change set deployments is accurate?

Choose 3 answers

Select one or more of the following:

  • They can be used only between related organizations.

  • They require a deployment connection.

  • They use an all or none deployment model.

  • They can be used to transfer Contact records.

  • They can be used to deploy custom settings data.

Explanation

Question 8 of 59

1

Which action can a developer perform in a before update trigger?

Choose 2 answers.

Select one or more of the following:

  • Update the original object using an update DML operation.

  • Delete the original object using a delete DML operation.

  • Change field values using the Trigger.new context variable.

  • Display a custom error message in the application interface.

Explanation

Question 9 of 59

1

A reviewer is required to enter a reason in the comments field only when a candidate is which action can a developer take to enforce this requirement?

Select one of the following:

  • Create a required comments field.

  • Create a formula field.

  • Create a validation rule.

  • Create a required Visualforce component.

Explanation

Question 10 of 59

1

What is a capability of formula fields?

Choose 3 answers.

Select one or more of the following:

  • Display the previous value for a field using the PRIORVALUE function.

  • Return and display a field value from another object using the VLOOKUP function

  • Determine which of three different images to display using the IF function.

  • Generate a link using the HYPERLINK function to specific record in a legacy system.

  • Determine if a datetime field has passed using the NOW function.

Explanation

Question 11 of 59

1

Where can a developer call external JavaScript in a Visualforce page?

Choose 2 answers.

Select one or more of the following:

  • <apex:includeScript>

  • <link>

  • <apex:define>

  • <script>

Explanation

Question 12 of 59

1

When the value of a field in an account record is updated, which method will update the value of a custom field related opportunities?

Choose 2 answers.

Select one or more of the following:

  • An apex trigger on the account object.

  • A process builder on the account object.

  • A cross-object formula field on the Account object.

  • A workflow rule on the account object.

Explanation

Question 13 of 59

1

What is the result of following code block?

integer x = 1;

integer y = 0;

while(x < 10){

y++;

}

What is the output?

Select one of the following:

  • Error

  • 9

  • 0

  • 10

Explanation

Question 14 of 59

1

What features are available when writing apex test classes?

Choose 2 answers.

Select one or more of the following:

  • The ability to select error types to ignore in the developer console.

  • The ability to write assertions to test after a @future method.

  • The ability to set and modify the CreatedDate field in apex tests.

  • The ability to set breakpoints to freeze the execution at a given point.

  • The ability to select testing data using .csv files stored in the system.

Explanation

Question 15 of 59

1

A developer writes a SOQL query to find child records for a specific parent. How many levels can be returned in a single query?

Select one of the following:

  • 3

  • 5

  • 1

  • 7

Explanation

Question 16 of 59

1

A developer needs to know if all tests currently pass in a Salesforce environment. Which feature can the developer use?

Choose 2 answers.

Select one or more of the following:

  • Developer console

  • ANT Migration Tool

  • Salesforce UI Apex Test Execution.

  • Workbench Metadata Retrieval

Explanation

Question 17 of 59

1

Which of these statements are true about the "view state" inspector?
Select all that apply.

Select one or more of the following:

  • Shows components contributing to view state

  • Must be enabled on a user profile

  • Is displayed only when using <apex: form>

  • Is controlled by the Role Hierarchy

Explanation

Question 18 of 59

1

Which statement would a developer use when creating test data for products and pricebooks?

Select one of the following:

  • List Object = Test.loadData(Account.sOjbectType, 'myResource');

  • Pricebook pb = new Pricebook();

  • Id pricebookId = Test.getStandardPricebookId();

  • IsTest(seeAllData=false)

Explanation

Question 19 of 59

1

On which object can an administrator create a roll-up summary field?

Select one of the following:

  • Any object that is on the master side of a master-detail relationship.

  • Any object that is on the parent side of a lookup relationship.

  • Any object that is on the detail side of a master-detail relationship.

  • Any object that is on the child side of a lookup relationship.

Explanation

Question 20 of 59

1

Which code block returns the listview of an Account object using the following debug statement?

system.debug(controller.getListViewOptions());

Select one of the following:

  • ApexPages.StandardSetController controller = new Apexpages.StandardSetController([SELECT id FROM Account LIMIT 1]);

  • ApexPages.StandardController controller = new ApexPages.StandardController

    (Database.getQueryLocator('select id from account limit 1')).

  • ApexPages.StandardController controller = new ApexPages.StandardController ([SELECT id FROM Account LIMIT 1]);

  • ApexPages.StandardSetController controller = new

    ApexPages.StandardSetController(database.getQueryLocator('select id from Account Limit 1')).

Explanation

Question 21 of 59

1

A developer has the following code.

try {

List<String> nameList;

Account a;

String s = a.Name;

nameList.add( s );

}
catch ( ListException le ){

System.debug('List Exception');

}
catch ( NullPointerException npe ){

System.debug('NullPointer Exception');

}
catch ( Exception e ){
System.debug('Generic Exception');

}
What message would be logged?

Select one of the following:

  • No message is logged

  • Generic Exception

  • List Exception

  • NullPointer Exception

Explanation

Question 22 of 59

1

Which user can edit a record after it has been locked for approval?

Choose 2 answers.

Select one or more of the following:

  • An administrator.

  • Any user who approved the record previously.

  • A user who is assigned as the current approver.

  • Any user with a higher role in the hierarchy.

Explanation

Question 23 of 59

1

Visualforce components are similar to which type of tag library containing tag namespace prefixes?

Select one of the following:

  • ASP tag library

  • JSP tag library

  • ASP log file

  • DL JSP log file

Explanation

Question 24 of 59

1

Which of these statements is true for encrypted custom fields?
Select all that apply.

Select one or more of the following:

  • Encrypted fields can be included in Search results.

  • Encrypted fields can be included in report results.

  • Encrypted fields are not available in filters for list views, reports, and Roll-up summary fields.

  • Encrypted fields are not available for validation rules or Apex scripts.

Explanation

Question 25 of 59

1

A developer creates an apex helper class to handle complex trigger logic. How can the helper class warm users when the trigger exceeds DML governor limits?

Select one of the following:

  • By using ApexMessage.Message() to display an error message after the number of DML

  • By using Messaging.sendEmail() to continue the transaction and send an alert to the user after the number of DML statements is exceeded.

  • By using PageReference.setRedirect() to redirect the user to a custom Visualforce page before the number of DML statements is Exceeded

  • By using limits.getDMLRows() and then displaying an error message before the number of DML statement exceeded

Explanation

Question 26 of 59

1

Which declarative method helps ensure quality data?

Choose 3 answers.

Select one or more of the following:

  • Exception handling.

  • Workflow alerts.

  • Validation rules.

  • Lookup filters.

  • Page layouts.

Explanation

Question 27 of 59

1

A hierarchy custom setting stores a specific URL for each profile in Salesforce.

Which statement can a developer use to retrieve the correct URL for the current user's profile and display this Visualforce page?

Select one of the following:

  • {!$Setup.Url_Settings__c.Instance[Profile.Id].URL_CC}

  • {!$Setup.Url_Settings__c.URL__c}

  • {!$Setup.Url_Settings__c[Profile.Id].URL__c}

  • {!$Setup.Url_Settings__c[$Profile.Id].URL__c}

Explanation

Question 28 of 59

1

A developer has the following query:

Contact c = [SELECT id, firstname, lastname, email FROM Contact WHERE lastname = ’Smith’];

What does the query return if there is no Contact with the last name “Smith”?

Select one of the following:

  • A contact with empty values.

  • A contact initialized to null.

  • An empty list of contacts.

  • An error that no rows are found.

Explanation

Question 29 of 59

1

Which developer tool can be used to create a data model?
Select all that apply.

Select one or more of the following:

  • Schema Builder

  • Force.com Data Loader

  • Application Data Model wizard

  • Force.com IDE

Explanation

Question 30 of 59

1

What is the proper process for an apex unit test?

Select one of the following:

  • Query for test data using SeeAllData =true. Call the method being tested. Verify that the results are correct.

  • Create data for testing. Execute runAllTests(). Verify that the results are correct.

  • Create data for testing. Call the method being tested. Verify that the results are correct.

  • Query for test data using SeeAllData = true. Execute runAllTests(). Verify that the results are correct.

Explanation

Question 31 of 59

1

How would a developer determine if a CustomObject__c record has been manually shared with the current user in Apex?
Select all that apply.

Select one or more of the following:

  • By calling the isShared() method for the record.

  • By querying the role hierarchy.

  • By querying CustomObject__share.

  • By calling the profile settings of the current user.

Explanation

Question 32 of 59

1

What is an accurate statement about variable scope?

Choose 3 answers.

Select one or more of the following:

  • Sub-block cannot reuse a parent block`s variable name.

  • A variable can be defined at any point in a block.

  • Parallel blocks can use the same variable name.

  • Sub-blocks can reuse a parent block’s variable name if their value is null.

  • A static variable can restrict the scope to the current block if its value is null.

Explanation

Question 33 of 59

1

Which data type or collection of data types can SOQL statements populate or evaluate to?

Choose 3 answers.

Select one or more of the following:

  • A Boolean.

  • An integer.

  • A List of SObjects

  • A single SObject

  • A string

Explanation

Question 34 of 59

1

Which scenario is invalid for execution by unit tests?

Select one of the following:

  • Executing methods for negative tests scenarios.

  • Executing methods as different users.

  • Loading test data in place of user input for Flows.

  • Loading the standard pricebook ID using a system method.

Explanation

Question 35 of 59

1

What is a good practice for a developer to follow when writing a trigger?
Choose 2 answers.

Select one or more of the following:

  • Using the Map data structure to hold query results by ID.

  • Using @ future methods to perform DML operations.

  • Using the Set data structure to ensure distinct records.

  • Using synchronous callouts to call external systems.

Explanation

Question 36 of 59

1

What is a capability of the Force.com IDE?
Choose 2

Select one or more of the following:

  • Edit metadata components.

  • Run Apex tests.

  • Download debug logs.

  • Roll back deployments

Explanation

Question 37 of 59

1

Universal containers has included its orders as an external data object into Salesforce. You want to create a relationship between Accounts and the Orders object (one-to-many relationship) leveraging a key field for account which is on both external object and Account. Which relationship do you create?

Select one of the following:

  • Indirect Lookup Relationship

  • External Lookup Relationship

  • Hierarchical Relationship

  • Lookup Relationship

  • Master-Detail Relationship

Explanation

Question 38 of 59

1

A customer wants to add a custom validation to the "contact save" process. Before a contact is created, the customer wants to include the validation, which checks if the associated account is active. This validation should be active for all UI as well as integration requests. Which design accomplishes this goal?

Select one of the following:

  • A custom Web service

  • A "before insert" Trigger

  • A custom Visualforce controller

  • A client-side S-control

Explanation

Question 39 of 59

1

Where can debug log filter settings be set?
Choose 2 answers.

Select one or more of the following:

  • The Filters link by the monitored user's name within the web UI.

  • The show more link on the Debug log's record.

  • On the monitored user's name.

  • The log filters tab on a class or trigger detail page.

Explanation

Question 40 of 59

1

Which type of information is provided by the checkpoints tab in the developer Console?
Choose2 answers.

Select one or more of the following:

  • Exception

  • Debug statement.

  • Namespace

  • Time

Explanation

Question 41 of 59

1

How many times does 'str' is added to the list?

List<String> strLst = new List<String>();

for(Integer i=0;i<99;i++) {

strLst.add('str'+i);

}

strLst.add('str'+'100');

Select one of the following:

  • 100

  • 102

  • 0

  • 101

Explanation

Question 42 of 59

1

What is a capability of a StandardSetController?
Choose 2 answers.

Select one or more of the following:

  • It extends the functionality of a standard or custom controller.

  • It allows pages to perform mass updates of records.

  • It allows pages to perform pagination with large record sets.

  • It enforces fields-level security when reading large record sets.

Explanation

Question 43 of 59

1

What is an important consideration when developing in a multi-tenant environment?

Select one of the following:

  • Polyglot persistence provides support for a global, multilingual user base in multiple orgs on multiple instances.

  • Governor Limits prevent tenants from impacting performance in multiple orgs on the same instance.

  • Unique domain name takes the place of namespaces for code developed for multiple orgs on multiple.

  • Org-wide data security determines whether other tenants can see data in multiple orgs on the same instances.

Explanation

Question 44 of 59

1

In a single record, a user selects multiple values from a multi-select picklist.

How are the selected values represented in apex?

Select one of the following:

  • As a string with each value separated by a comma.

  • As a List<string> with each value as an element in the list.

  • As a String with each value separated by a semicolon.

  • As a Set<String> with each value as an element in the set.

Explanation

Question 45 of 59

1

A developer creates an Apex class that includes private methods. What can the developer do to ensure that the private method can be accessed by the test class?

Select one of the following:

  • Add the TestVisible attribute to the Apex class.

  • Add the SeeAllData attribute to the test methods.

  • Add the SeeAllData attribute to the test class.

  • Add the TestVisible attribute to the Apex methods.

Explanation

Question 46 of 59

1

Which statement about the lookup Relationship between a custom object and a Standard object?

Select one of the following:

  • The lookup relationship on the custom object can prevent the deletion of the standard object.

  • The lookup Relationship cannot be marked as required on the page layout for the custom.

  • The custom object will be deleted when the referenced Standard Object is deleted.

  • The custom object inherits security from the referenced Standard Object.

Explanation

Question 47 of 59

1

How would a developer use Schema Builder to delete a custom field from the account object that was required for prototyping but is no longer needed?

Select one of the following:

  • Remove all the references in the code and then the field will be removed from Schema Builder.

  • Remove all references from the code and then delete the custom field from Schema Builder.

  • Mark the field for deletion in Schema Builder and then delete it from the declarative UI.

  • Delete the field from Schema Builder and then all references in the code will be removed.

Explanation

Question 48 of 59

1

Where can custom roll-up summary fields be created using Standard object relationship?
Choose 3 answers.

Select one or more of the following:

  • On account using case records

  • On account using opportunity records.

  • On opportunity using opportunity product records.

  • On quote using order records.

  • On campaign using campaign member records.

Explanation

Question 49 of 59

1

What happens when a workflow is re-evaluated?
Pick 3.

Select one or more of the following:

  • Other Workflow types

  • Previous Workflows

  • Validation

  • Cross-object sharing rules

Explanation

Question 50 of 59

1

Which statement about declarations is correct?

Select one of the following:

  • A developer can use define constant with final keyword.

  • A developer can extend a class that is declared with virtual keyword

  • A developer can’t use class or method using final keyword

  • All of the above

Explanation

Question 51 of 59

1

How can a developer determine, from the DescribeSobjectResult, if the current user will be able to create record an object in Apex?

Select one of the following:

  • By using the hasAccess() method.

  • By using the isCreatable() method.

  • By using the isInsertable() method.

  • By using the canCreate() method.

Explanation

Question 52 of 59

1

What is an accurate constructor for a custom controller named "MyController"?

Select one of the following:

  • public MyController(){

    account = new Account();

    }

  • Public MyController(SObject obj){

    account = (Account) obj;

    }

  • public MyController(List<SObject> objects) {

    accounts = (List<Account>)objects;

    }

  • Public MyController(ApexPages.Standardcontroller stdcontroller) {

    account = (Account) stdcontroller.getRecord();

    }

Explanation

Question 53 of 59

1

The sales management team requires that the lead source field of the lead record be populated when a lead is converted.

What would a developer use to ensure that a user populates the lead source field prior to converting a lead?

Select one of the following:

  • Process builder.

  • Validation rule.

  • Formula Field

  • Workflow rule.

Explanation

Question 54 of 59

1

When can a developer use a custom Visualforce page in a Force.com Application?
Choose 2 answers.

Select one or more of the following:

  • To create components for dashboards and layouts.

  • To deploy components between two organizations.

  • To generate a PDF document with application data.

  • To modify the page layout settings for a custom object.

Explanation

Question 55 of 59

1

The sales management team hire a new intern. The intern is not allowed to view opportunities, but needs to see the most recent closed date of all child opportunities when viewing an account record. What would a developer do to meet this requirement?

Select one of the following:

  • Create a work rules on the opportunity object that updates a field on the parent account.

  • Create a formula field on the account object that performs a MAX on the opportunity close date field.

  • Create a roll-up summary field on the account object that performs a MAX on the opportunity close date field.

  • Create a trigger on the Account object that queries the close date of the most recent opportunities.

Explanation

Question 56 of 59

1

A company wants recruiting app that models candidates and interviews; displays the total number of interviews each candidate record; and defines security on interview records that is independent from the security on candidate records.

What would a developer do to accomplish this task?

Choose 2 answers.

Select one or more of the following:

  • Create a roll-up summary field on the candidate object that counts interview records.

  • Create a master-detail relationship between the candidate and interview objects.

  • Create a lookup relationship between the candidate and interview objects.

  • Create a trigger on the interview object that updates a field on the candidate object.

Explanation

Question 57 of 59

1

Which statement should a developer avoid using inside procedural loops?
Choose 2 answers

Select one or more of the following:

  • System.debug('Amount of CPU time (in ms) used so far: '+ Limits.getCpuTime());

  • update contactList;

  • List<Contact> contacts = [select id,saluation, firstname, lastname, email from Contact where accountId = :a.Id];

  • if(o.accountid == a.id)

Explanation

Question 58 of 59

1

What is the value of x after the code segment executes?

String x= 'A';

Integer i =10;

if(i<15){

i=15;

x='B';

} else

if( i <20){

X = 'C';

}else {

X ='D';

}

Select one of the following:

  • B

  • C

  • D

  • A

Explanation

Question 59 of 59

1

A developer needs to create a Visualforce page that will override the standard account edit button. The page will be used to validate the account`s address using a SOQL query. The page will also allow the user to make edits to the address.

Where would the developer write the Account address verification logic?

Select one of the following:

  • In a Controller Extension.

  • In a Custom Controller.

  • In a Standard controller.

  • In a Standard Extension.

Explanation

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