Salesforce Salesforce Certifications CRT-450 Questions & Answers

• Question 501:

  What are two features of Heroku Connect? Choose 2 answers

  A. Displaying data from an external data store via External Objects.

  B. Real Time Sync between Salesforce and Postgres

  C. Bidirectional syncs, allowing data to be written into Salesforce

  D. Near Real Time Sync between Heroku Postgres and Salesforce

  Correct Answer: CD

• Question 502:

  Which collection type provides unique key/value pairings of data?

  A. Map

  B. List

  C. Array

  D. Set

  Correct Answer: A

• Question 503:

  A developer created a helper class with a method that can be called from Visualforce pages, web services, triggers, and of even anonymous code. When the method is called from a trigger, the developer needs to execute logic that should not be executed If the method Is called from anywhere else. How can the developer determine if the code Is executed in a trigger context?

  A. Check if System.executionContext =='Trigger'.

  B. Use the executeOnTrigger annotation on the method definition.

  C. Check if Trigger.isExecuting ==true

  D. Check if Trigger.newMap !=null.

  Correct Answer: C

• Question 504:

  What are three ways for a developer to execute tests in an org? Choose 3.

  A. Bulk API

  B. ToolingAPI

  C. Metadata API

  D. Setup Menu

  E. SalesforceDX

  Correct Answer: BDE

  https://developer.salesforce.com/docs/atlas.en-us.sfdx_dev.meta/sfdx_dev/sfdx_dev_testing.htm https://developer.salesforce.com/docs/atlas.en-us.api_tooling.meta/api_tooling/tooling_api_objects_apextestsuite.htm

• Question 505:

  A developer is tasked to perform a security review of the ContactSearch Apex class that exists in the system. Whithin the class, the developer identifies the following method as a security threat: List performSearch(String lastName){ return Database.query('Select Id, FirstName, LastName FROM Contact WHERE LastName Like %'+lastName+'%); }

  What are two ways the developer can update the method to prevent a SOQL injection attack? Choose 2 answers

  A. Use variable binding and replace the dynamic query with a static SOQL.

  B. Use the escapeSingleQuote method to sanitize the parameter before its use.

  C. Use a regular expression expression on the parameter to remove special characters.

  D. Use the @Readonly annotation and the with sharing keyword on the class.

  Correct Answer: AB

• Question 506:

  Universal Containers implemented a private sharing model for the Account object. A custom Account search tool was developed with Apex to help sales representatives find accounts that match multiple criteria they specify. Since its release, users of the tool report they can see Accounts they do not own.

  What should the developer use to enforce sharing permission for the currently logged-in user while using the custom search tool?

  A. Use the schema describe calls to determine if the logged-in user has access to the Account object.

  B. Use the without sharing keyword on the class declaration.

  C. Use the UserInfo Apex class to filter all SOQL queries to returned records owned by the logged-in user.

  D. Use the with sharing keyword on the class declaration.

  Correct Answer: D

  Use the with sharing keyword on the class declaration. The with sharing keyword ensures that the Apex code respects the object-level, field-level, and record-level sharing settings for the user who is running the Apex code. This means that the code will only return records that the user has access to, according to their Sharing Settings. You can find more information about the with sharing keyword in the official Salesforce documentation (https://developer.salesforce.com/docs/ atlas.en- us.apexcode.meta/apexcode/apex_classes_keywords_sharing.htm).

• Question 507:

  Which three web technologies can be integrated into a Visualforce page? Choose 3 answares

  A. HTML

  B. Java

  C. PHP

  D. CSS

  E. JavaScript

  Correct Answer: ADE

• Question 508:

  A developer has an integer variable called maxAttempts. The developer meeds to ensure that once maxAttempts is initialized, it preserves its value for the lenght of the Apex transaction; while being able to share the variable's state between trigger executions. How should the developer declare maxAttempts to meet these requirements?

  A. Declare maxattempts as a member variable on the trigger definition.

  B. Declare maxattempts as a private static variable on a helper class

  C. Declare maxattempts as a constant using the static and final keywords

  D. Declare maxattempts as a variable on a helper class

  Correct Answer: C

• Question 509:

  A developer must create a DrawList class that provides capabilities defined in the Sortableand Drawable interfaces.

  

  Which is the correct implementation?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: D

• Question 510:

  Which statement generates a list of Leads and Contacts that have a field with the phrase 'ACME'?

  A. List searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);

  B. List> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);

  C. Map searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);

  D. List> searchList = (SELECT Name, ID FROM Contact, Lead WHERE Name like '%ACME%');

  Correct Answer: B