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No.# To be included in a dashboard, a Visualforce page must use a custom controller, use a standard or custom list controller, or not have a controller. You can’t add a Visualforce page with a standard controller to a dashboard.
=> B, C, E

No.# Answers are B and C

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No.# • B. Limited to 5 GB of data: A partial copy sandbox is limited to a maximum of 5 GB of data storage, whereas a full sandbox can contain the full data of the production environment.
• D. More frequent refreshes: Partial sandboxes can be refreshed more frequently (every 5 days) compared to full sandboxes, which can only be refreshed every 29 days.

No.# • C. Sub-blocks cannot reuse a parent block’s variable name: This is accurate because a variable declared in a parent block cannot be redeclared in a child block within the same scope. The sub-block has access to the parent block’s variables and cannot redefine them.
• D. Parallel blocks can use the same variable name: This is true because parallel (or sibling) blocks are separate scopes, so they can each have their own variable with the same name without conflict.
• E. A variable can be defined at any point in a block: This is accurate. Variables can be declared anywhere within a block, and their scope will extend from the point of declaration to the end of the block.

No.# A. System Assert statements that do not increase code coverage contribute important feedback in unit tests.

• Explanation: System Assert statements are essential in unit tests as they validate the behavior and outcomes of the code being tested. Even if they do not directly increase code coverage, they ensure the correctness of the code, which is crucial for reliable software.

C. Increased test coverage requires large test classes with many lines of code in one method.

• Explanation: While this statement is partially true, it’s often more effective to have multiple, well-organized, and focused test methods rather than large test classes with many lines of code in one method. However, the statement implies a common misconception; good practice actually involves creating concise and modular test methods to ensure thorough and maintainable test coverage.

No.# C. Controller.js

• Correct: Contains client-side logic, including event handlers for user actions like button clicks. Functions defined here can be referenced by the onclick attribute.

No.# A. Write a SOQL for loop that iterates on the RecordType object.

• This is a valid approach. You can write a SOQL query to fetch the RecordType records for the Opportunity object and then iterate over the results to collect the labels.

B. Obtain describe object results for the Opportunity object.

• This is also a valid approach. Using the Schema.DescribeSObjectResult class, a developer can retrieve metadata about the Opportunity object, including its record types and their labels.

No.# C. The standardController attribute must be set to the object.

• Correct: When overriding standard buttons (like New, Edit, View) with a Visualforce page, the standardController attribute of the <apex:page> tag must be set to the object being overridden. This ensures that the Visualforce page uses the standard controller for the object.

No.# 100, 150
• SOQL Query Limit: The governor limit for SOQL queries is 100 queries per transaction.
• DML Statement Limit: The governor limit for DML statements is 150 DML statements per transaction.

No.# To update an unrelated object when a record gets saved, the developer should create triggers that run after the record is inserted or updated. This ensures that the trigger has access to the record’s ID and other fields that may be necessary to perform the update on the unrelated object. Therefore, the correct trigger types to create are:

A. After insert

B. After update

These types of triggers ensure that the record in the object being triggered upon is fully committed and its final state is available, which is crucial for reliably updating unrelated objects.

No.# B. By using an object standard set controller action

• This approach involves creating a PageReference by specifying the action associated with a standard set controller. For example:
PageReference pageRef = new PageReference('/apex/YourPageName');

C. By using ApexPages.currentPage()

• This method returns a PageReference object that refers to the current Visualforce page. For example:
PageReference currentPage = ApexPages.currentPage();

No.# D StandardController: This attribute specifies the standard controller for the Opportunity object, allowing the page to use the built-in functionality and data of the Opportunity object.
C Extensions: This attribute specifies any controller extensions that provide additional functionality, such as calling a web service and handling the redirection.
A Action: This attribute specifies the action method to be executed when the page is loaded, which in this case could be the method that calls the web service and handles the redirection.

<apex:page standardController="Opportunity" extensions="MyControllerExtension" action="{!myActionMethod}">
<!-- Page content here -->
</apex:page>

No.# 1. Define the class with a constructor that takes an instance of StandardController as a parameter.

This is necessary to extend the functionality of the standard controller and to gain access to its methods and properties.

2. Create a method named Save with a return data type of PageReference.

This method will override the default Save action. The return type of PageReference allows you to control the navigation after the Save action is performed.

Therefore, the correct answers are:

B. Create a method named Save with a return data type of PageReference.

D. Define the class with a constructor that takes an instance of StandardController as a parameter.

No.# B
1. Governor Limits: Salesforce has governor limits that restrict the number of SOQL queries that can be executed in a single transaction. The limit for synchronous transactions is 100 SOQL queries.
2. Trigger Logic: The trigger performs a SOQL query inside a loop, which is a common anti-pattern in Apex development because it can easily hit the SOQL query limit.

No.# B. Before update

C. Before insert

Explanation:

• Before Insert Trigger: This type of trigger is used to modify the values of a record before it is inserted into the database. This is useful when you want to set or modify fields on the Contact record before it is created.
• Before Update Trigger: This type of trigger is used to modify the values of a record before it is updated in the database. This is useful when the “Reports To” field needs to be recalculated and set whenever the Contact record is updated.

No.# • Option A: Use a standard controller
• You can use the standard controller provided by Salesforce for standard objects. This is a common approach for basic operations like displaying records, performing CRUD operations, and integrating with standard Salesforce functionality.
• Option D: Use a standard controller with extensions
• This allows you to use the functionality of a standard controller while adding custom logic through extensions. Extensions provide additional methods and logic to extend the standard controller’s capabilities.
• Option E: Use a custom controller
• A custom controller is a class written in Apex that provides custom logic and data to a Visualforce page. This option is used when you need full control over the page’s behavior and data processing.

No.# D. Map

Explanation:

• ApexPages.currentPage().getParameters() returns a Map<String, String> where the keys are the parameter names, and the values are the parameter values from the URL.
• This allows you to easily access the parameters by their names and work with them within your Visualforce controller.

No.# Option A: The class must implement the equals and hashCode methods.
• This is correct. In Apex, for a custom class to be used in a Set or as a key in a Map, the class must override the equals and hashCode methods. This ensures that the Set can correctly identify unique instances of the custom class.

No.# • Option A: The default modifier for a class is private.
• This is correct. In Apex, if no access modifier is specified for a class, it defaults to private.


C. Exception classes must end with the word exception.