CRT-450 Practice Test Questions

A developer encounters APEX heap limit errors in a trigger. Which two methods should the developer use to avoid this error? (Choose two.)

A. Use the transient keyword when declaring variables.

B. Query and store fields from the related object in a collection when updating related objects.

C. Remove or set collections to null after use.

D. Use SOQL for loops instead of assigning large queries results to a single collection and looping through the collection.

For which three items can a trace flag be configured? (Choose three.)

A. Apex Trigger

B. Apex Class

C. Process Builder

D. User

E. Visualforce

A newly hired developer discovers that there are multiple triggers on the case object. What should the developer consider when working with triggers?

A. Developers must dictate the order of trigger execution.

B. Unit tests must specify the trigger being tested.

C. Trigger execution order is not guaranteed for the same sObject.

D. Trigger execution order is not guaranteed for the same sObject.

A developer executes the following query in Apex to retrieve a list of contacts for each account: List accounts = [Select ID, Name, (Select ID, Name from Contacts) from Account] ; Which two exceptions may occur when it executes? (Choose two.)

A. CPU limit exception due to the complexity of the query.

B. SOQL query row limit exception due to the number of contacts.

C. SOQL query limit exception due to the number of contacts.

D. SOQL query row limit exception due to the number of accounts.

In a single record, a user selects multiple values from a multi-select picklist. How are the selected values represented in Apex?

A. As a List with each value as an element in the list

B. As a String with each value separated by a comma

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

D. As a Set with each value as an element in the set

Which two platform features align to the Controller portion of MVC architecture? (Choose two.)

A. Process Builder actions

B. Workflow rules

C. Standard objects

D. Date fields

Which two Apex data types can be used to reference a Salesforce record ID dynamically? (Choose two.)

A. ENUM

B. Object

C. External ID

D. String

When is an Apex Trigger required instead of a Process Builder Process?

A. When a record needs to be created

B. When multiple records related to the triggering record need to be updated

C. When a post to Chatter needs to be created

D. When an action needs to be taken on a delete or undelete, or before a DML operation is executed.

What are two uses for External IDs? (Choose two.)

A. To create relationships between records imported from an external system.

B. To create a record in a development environment with the same Salesforce ID as in another environment

C. To identify the sObject type in Salesforce

D. To prevent an import from creating duplicate records using Upsert

Which two statements are true about using the @testSetup annotation in an Apex test class? (Choose two.)

A. The @testSetup annotation cannot be used when the @isTest(SeeAllData=True) annotation is used.

B. Test data is inserted once for all test methods in a class.

C. Records created in the @testSetup method cannot be updates in individual test methods.

D. The @testSetup method is automatically executed before each test method in the test class is executed.