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CRT-450 : Salesforce Certified Platform Developer I Exam

Salesforce CRT-450 Questions & Answers

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killexams.com Salesforce CRT-450


Salesforce Certified Platform Developer I


https://killexams.com/pass4sure/exam-detail/CRT-450


Question: 375


Which approach should be used to provide test data for a test class?

  1. Query for existing records in the database.

  2. Execute anonymous code blocks that create data.

  3. Use a test data factory class to create test data.

  4. Access data in @TestVisible class variables.


Answer: C


Question: 376


Which three declarative fields are correctly mapped to variable types in Apex? (Choose three.)

  1. Number maps to Decimal.

  2. Number maps to Integer.

  3. TextArea maps to List of type String.

  4. Date/Time maps to Dateline.

  5. Checkbox maps to Boolean.


Answer: A,D,E


Question: 377

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

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

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

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

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


Answer: C


Question: 378


Which type of information is provided by the Checkpoints tab in the Developer Console? (Choose 2)

  1. Namespace

  2. Time

  3. Exception

  4. Debug Statement


Answer: A, B

Question: 379


Which resource can be included in a Lightning Component bundle? Choose 2 answers

  1. Apex class

  2. Adobe Flash

  3. JavaScript

  4. Documentation


Answer: C, D


Question: 380


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

  1. Apex Trigger

  2. Apex Class

  3. Process Builder

  4. User

  5. Visualforce


Answer: A,B,D


Question: 381


A lead object has a custom field Prior_Email c.


The following trigger is intended to copy the current Email into the Prior_Email c field any time the Email field is changed:



Which type of exception will this trigger cause?

  1. A null reference exception

  2. A compile time exception

  3. A DML exception

  4. A limit exception when doing a bulk update


Answer: C


Question: 382

A developer needs to test an Invoicing system integration. After reviewing the number of transactions required for the test, the developer estimates that the test data will total about 2 GB of data storage. Production data is not required for the integration testing.


Which two environments meet the requirements for testing? (Choose two.)

  1. Developer Sandbox

  2. Full Sandbox

  3. Developer Edition

  4. Partial Sandbox

  5. Developer Pro Sandbox


Answer: B,D


Question: 383


A developer encounters APEX heap limit errors in a trigger.


Which two methods should the developer use to avoid this error? (Choose two.)

  1. Use the transient keyword when declaring variables.

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

  3. Remove or set collections to null after use.

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


Answer: A,D


Question: 384


Which set of roll-up types are available when creating a roll-up summary field?

  1. COUNT, SUM, MIN, MAX

  2. AVERAGE, SUM, MIN, MAX

  3. SUM, MIN, MAX

  4. AVRAGE, COUNT, SUM, MIN, MAX


Answer: A


Question: 385


A developer wrote a unit test to confirm that a custom exception works properly in a custom controller, but the test failed due to an exception being thrown.


Which step should the developer take to resolve the issue and properly test the exception?

  1. Use try/catch within the unit test to catch the exception.

  2. Use the finally bloc within the unit test to populate the exception.

  3. Use the database methods with all or none set to FALS

E. Use Test.isRunningTest() within the custom controller.

Answer: A


Question: 386

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

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

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

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

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


Answer: C,D


Question: 387


How should a developer prevent a recursive trigger?

  1. Use a “one trigger per object” pattern.

  2. Use a static Boolean variable.

  3. Use a trigger handler.

  4. Use a private Boolean variable.


Answer: D


Question: 388


What is an accurate statement about variable scope? (Choose 3)

  1. Parallel blocks can use the same variable name.

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

  3. Sub-blocks cannot reuse a parent block’s variable name.

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

  5. A static variable can restrict the scope to the current block of its value is null.


Answer: A, B, C


Question: 389

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

  1. As a List<String> with each value as an element in the list

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

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

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

Answer: C


Question: 390


A Platform Developer needs to write an Apex method that will only perform an action if a record is assigned to a specific Record Type.


Which two options allow the developer to dynamically determine the ID of the required Record Type by its name? (Choose two.)

A. Make an outbound web services call to the SOAP AP

  1. Hardcode the ID as a constant in an Apex class.

  2. Use the getRecordTypeInfosByName() method in the DescribeSObjectResult class.

  3. Execute a SOQL query on the RecordType object.


Answer: C,D


Question: 391


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

  1. Process Builder actions

  2. Workflow rules

  3. Standard objects

  4. Date fields


Answer: A,B


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