PD1 Developer Fundamentals

Question 1

What is Apex in Salesforce?

Accepted Answer

A programmatic language used for executing business logic

Answer

Apex is Salesforce's proprietary, strongly typed, object-oriented programming language. It allows developers to execute flow and transaction control statements on the Salesforce platform, enabling complex business logic that cannot be achieved with standard declarative tools. It is used for backend processes, not directly for user interfaces or reporting.

Question 2

Which data storage model does Salesforce use?

Accepted Answer

Multi-tenant

Answer

Salesforce uses a multi-tenant architecture, meaning a single instance of the software and its supporting infrastructure serves multiple customers simultaneously. This model allows for efficient resource utilization, automatic upgrades, and shared infrastructure costs, while ensuring data isolation and security for each tenant. It's a core aspect of cloud computing platforms.

Question 3

What is a trigger in Salesforce?

Accepted Answer

A piece of code that runs on user actions

Answer

A trigger in Salesforce is an Apex script that executes automatically before or after specific data manipulation language (DML) events, such as inserting, updating, or deleting records. They are used to perform custom actions, enforce complex business rules, or integrate with other systems based on these record changes. Triggers are a powerful way to automate logic programmatically.

Question 4

Which of the following is an example of a governor limit in Salesforce?

Accepted Answer

Number of records returned by a SOQL query

Answer

Governor limits are runtime limits enforced by the Salesforce platform to ensure efficient resource usage in the multi-tenant environment. Limiting the number of records returned by a SOQL query prevents any single operation from monopolizing shared resources, ensuring fair usage and system stability for all tenants. Other options like user count or storage are organizational limits, not execution-time governor limits.

Question 5

What is SOQL in Salesforce?

Accepted Answer

A query language used for retrieving data from Salesforce

Answer

SOQL (Salesforce Object Query Language) is a powerful query language similar to SQL, specifically designed for the Salesforce platform. It allows developers and administrators to search the organization's Salesforce data for specific information, retrieving records from standard and custom objects. It is used for reading data, not for writing triggers or manipulating data directly.

(PD1) Salesforce Certified Platform Developer 1 Practice Test

(PD1) Salesforce Certified Platform Developer 1 Practice Test

PD1 Developer Fundamentals