A developer needs to have records with specific field values in order to test a new Apex class.
What should the developer do to ensure the data is available to the test?

A developer must provide a custom user interface when users edit a Contact. Users must be able to use the interface in Salesforce Classic and Lightning Experience.
What should the developer do to provide the custom user interface?

A developer writes a trigger on the Account object on the before update event that increments a count field. A workflow rule also increments the count field every time that an Account is created or updated. The field update in the workflow rule is configured to not re-evaluate workflow rules.
What is the value of the count field if an Account is inserted with an initial value of zero, assuming no other automation logic is implemented on the Account?

A developer needs to update an unrelated object when a record gets saved. Which two trigger types should the developer create?

Which statement should be used to allow some of the records in a list of records to be inserted rf others fail to be inserted?