EMT Practice Test

1. Question Content...

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Question1: A developer is trying to decide between creating a Visualforce component or a Lightning component for a custom screen. Which functionality consideration impacts the final decision?

Question2: A developer wants to use an Aura Component with a Custom Action.
What should be considered in order to do this?

Question3: Recently a Salesforce org's integration failed because it exceeded the number of allowed API calls in a 24-hour period. The integration handles a near real-time, complex insertion of data into Salesforce. The flow of data is as follows: * The integration looks up Contact records with a given email address and, if found, the integration adds a Task to the first matching Contact it finds. If a match is not found, the integration looks up Lead records with a given email address and, if found, the integration adds a Task to the first matching Lead it finds. * If a match is not found, the integration will create a Lead and a Task for that newly created Lead. What is one way in which the integration can stay near real-time, but not exceed the number of allowed API calls in a 24-hour period?

Question4: An org has a requirement that an Account must always have one and only one Contact listed as Primary. So selecting one Contact will de-select any others. The client wants a checkbox on the Contact called 'Is Primary' to control this feature. The client also wants to ensure that the last name of every Contact is stored entirely in uppercase characters. What is the optimal way to implement these requirements?

Question5: How should a developer assert that a trigger with an asynchronous process has successfully run?

Question6: A Visualforce page loads slowly due to the large amount of data it displays. Which strategy can a developer use to improve the performance?

Question7: A company represents their customers as Accounts that have an External ID field called Customer_Number__c. They have a custom Order (Order__c) object, with a Lookup to Account, to represent Orders that are placed in their external order management system (OMS). When an order is fulfilled in the OMS, a REST call to Salesforce should be made that creates an Order record in Salesforce and retates it to the proper Account. What is the optimal way to implement this?

Question8: For compliance purposes, a company is required to track long-term product usage in their org. The information that they need to log will be collected from more than one object and. over time, they predict they will have hundreds of millions of records.
What should a developer use to implement this?

Question9: A developer needs to send Account records to an external system for backup purposes. The process must take a snapshot of Accounts as they are saved and then make a callout to a RESTful web service. The web service can only receive, at most, one record per call. Which feature should be used to implement these requirements?

Question10: Global with sharing class MyRemoter { public String accountName { get; set; } public static Account account { get; set; } public AccountRemoter(} {} @RemoteAction global static Account getAccount (String acccuntName) { account = [SELECT Id, Name, NumberOfEmployees FROM Account WHERE Name = :accountName]; return account; } } Consider the Apex class above that defines a RemoteAction used on a Visualforce search page. Which code snippet will assert that the remote action returned the correct Account?

Question11: The use of the transient keyword In Visualforce Page Controllers helps with which common performance issued?

Question12: Universal Containers wants to use an external Web Service provided by a third-party vendor to validate that shipping and billing addresses are correct. The current vendor uses basic password authentication, but Universal Containers might switch to a different vendor who uses OAuth. What would allow Universal Containers to switch vendors without updating the code to handle authentication?

Question13: Line 1 public class AttributeTypes Line 2 { Line 3 private final String[] arrayItems; Line 4 Line 5 @AuraEnabled Line 6 public List<String> getStringArray() { Line 7 Strings+ arrayItems = new String*+, 'red', 'green', 'blue' -; Line 8 return arrayItems; Line 9 } Line 10 } Consider the Apex controller above that is called from a Lightning Aura Component. What is wrong with it?

Question14: How should a developer verify that a specific Account record is being tested in a test class for a visualforce controller?

Question15: A company has a web page that needs to get Account record information, given its Salesforce record ID, from JavaScript on the page and then display it. Which method of integration is optimal?

Question16: Universal Containers wants to use a Customer Community with Customer Community Plus licenses so their customers can track how many of containers they are renting and when they are due back. Many of their customers are global companies with complex Account hierarchies, representing various departments within the same organization. One of the requirements is that certain community users within the same Account hierarchy be able to see several departments' containers, based on a junction object that relates the Contact to the various Account records that represent the departments. Which solution solves these requirements?

Question17: An Apex trigger creates an Order__c record every time an Opportunity is won by a Sales Rep. Recently the trigger is creating two orders. What is the optimal method for a developer to troubleshoot this?

Question18: A developer receives an error when trying to call a global server-side method using the @remoteAction decorator. How can the developer resolve the error?

Question19: What is a benefit of JavaScript remoting over Visualforce Remote Objects?

Question20: A developer wrote an Apex class to make several callouts to an external system.
If the URLs used in these callouts will change often, which feature should the developer use to minimize changes needed to the Apex class?

Question21: Universal Containers wants to be able to bring up an Account detail page and view a table of containers currently being rented. The user wants to be able to dick on a container In the table and quickly edit and save the location of the container.
In addition to this, the page should have a section that shows the location of each container on a map. Universal Containers wants the map to re-render whenever the location of a container is changed.
What can a developer use to accomplish this task?

Question22: Consider the controller code above that is called from a Lightning component and returns data wrapped in a class.

Consider the controller code above that is called from a Lightning component and returns data wrapped in a class.
The developer verified that the Queries return a single record each and there is error handing in the Lightning component, but the component is not getting anything back when calling the controller getSomeData().
What is wrong?

Question23: A developer gets an error saying 'Maximum Trigger Depth Exceeded.' What is a possible reason to get this error message?

Question24: An Apex class does not achieve expected code coverage. The testSetup method explicitly calls a method in the Apex class. How can the developer generate the code coverage?

Question25: Given a list of Opportunity records named opportunityList, which code snippet is best for querying all Contacts of the Opportunity's Account?
A)

B)

C)

D)

Question26: A developer has a test class that creates test data before making a mock call-out, but now receives a you have uncommitted work pending. Please commit or callout before calling out error.
What step should be taken to resolve the error?

Question27: A company has many different unit test methods that create Account records as part of their data setup. A new required field was added to the Account and now all of the unit tests fail. What is the optimal way for a developer to fix the issue?

Question28: A developer needs to implement a system audit feature that allows users, assigned to a custom profile named "Auditors", to perform searches against the historical records in the Account object. The developer must ensure the search is able to return history records that are between 12 and 24 months old.
Given the code below, which select statement should be inserted below as a valid way to retrieve the Account History records ranging from 12 to 24 month old?
A)

B)

C)

D)

Question29: A company notices that their unit tests in a test class with many methods to create many records for prerequisite reference data are slow. What can a developer to do address the issue?

Question30: Lightning Aura Component

Given the code above, which two changes need to be made in the Apex Controller for the code to work' Choose 2 answers

Question31: A company processes Orders within their Salesforce instance. When an Order's status changes to 'Paid' it must notify the company's order management system (OMS). The OMS exposes SOAP web service endpoints to listen for when to retrieve the data from Salesforce. What is the optimal method to implement this?

Question32: A company has a Request__c object that has a lookup to the Opportunity object and a custom field. Status__c, with values of Open,' Closed, and Invalid.' An Opportunity should not be allowed to be deleted if there are any Request__c records related to it that have a Status__c value of Open or 'Closed.' what is the optimal way to enforce the requirement to prevent deletion?

Question33: A developer is inserting, updating, and deleting multiple lists of records in a Single transaction and wants to ensure that any error prevents all execution.
How should the developer implement error exception handling in their code to handle this?

Question34: What can be done to improve the performance of the insert trigger shown above?

Question35: What is the optimal technique a developer should use to programmatically retrieve Global Picklist options in a Test Method?

Question36: A company wants to incorporate a third-party web service to set the Address fields when an Account is inserted, if they have not already been set. What is the optimal way to achieve this?

Question37: Which interface needs to be implemented by a Lightning Component so that it may be displayed in modal dialog by clicking a button on a Lightning Record page?

Question38: Users report that a button on a custom Lightning Web Component is not working. However, there are no other details provided. What should the developer use to ensure error messages are properly displayed?

Question39: Which statement is considered a best practice for writing bulk safe Apex Triggers?

Question40: What are two benefits of using External IDs? Choose 2 answers

Question41: A company uses a custom-built enterprise resource planning (ERP) system to handle order management. The company wants Sales Reps to know the status of orders so that if a customer calls to ask about their shipment, the Sales Rep can advise the customer about the order's status and tracking number if it is already shipped.
Which two methods can make this ERP order data visible in Salesforce? Choose 2 answers

Question42: Consider the above trigger intended to assign the Account to the manager of the Account''s region. Which two changes should a developer make in this trigger to adhere to best practices? Choose 2 answers

Question43: A developer is developing a reuseable Aura Component that will reside on an sObject Lightning Page with the following HTML snippet:
<aura:component implements="force:hasRecordId,flexipage:availableForAIIPageTypesM>
<div>Hello!</div>
</aura:component>
How can the component's Controller get the context of the Lightning Page that the sObject is on without requiring additional test coverage?

Question44: A user receives the generic "An internal server error has occurred" while interacting with a custom Lightning Component. What should the developer do to ensure a more meaningful message?

Question45: A developer wants to call an Apex Server-side Controller from a Lightning Aura Component. What are two limitations to the data being returned by the Controller? Choose 2 answers