Question

Because Apex runs in a multitenant environment, the Apex runtime engine enforces limits to ensure that Apex code or processes don't monopolize shared resources. What are valid examples of these limits? Choose 3 answers.

1) Total number of records retrieved by SOQL queries
2) CPU time per transaction
3) Time executing a SOQL query
4) Maximum number of records that can be stored

Answer 1

Valid examples of limits enforced by the Apex runtime engine in a multitenant environment include the total number of records retrieved by SOQL queries, CPU time per transaction, and time executing a SOQL query. These limits ensure shared resources are used fairly.

Step-by-step explanation:

The question relates to the enforcement of limits within the Apex runtime engine in a multitenant environment. In such environments, resources are shared among multiple tenants (customers), and therefore, limits are necessary to ensure fair usage. Here are three valid examples of these limits:

• Total number of records retrieved by SOQL queries.
• CPU time per transaction.
• Time spent executing a SOQL query.

Each of these limits serves to prevent any single process or block of code from utilizing a disproportionate amount of resources, which could negatively impact other tenants in the shared environment. For instance, there is a limit to the total number of records that can be retrieved by a single SOQL query, and this helps prevent extensive database operations that could slow down the system for others. Similarly, CPU time per transaction is capped to ensure that no single process hogs the CPU and degrades performance across the environment.