A developer needs to know if all tests currently pass in a Salesforce environment. Which feature can the developer use? (Choose 2)

When an Account's custom picklist field called Customer Sentiment is changed to a value of "Confused", a new related Case should automatically be created.
Which two methods should a developer use to create this case? (Choose two.)

In Lightning component framework, which resource can be used to fire events? Choose 2 answers.

Which code should be used to update an existing Visualforce page that uses standard Visualforce components so that the page matches the look and feel of Lightning Experience?

A developer is tasked to perform a security review of the ContactSearch Apex class that exists in the system.
Whithin the class, the developer identifies the following method as a security threat: List<Contact> performSearch(String lastName){ return Database.query('Select Id, FirstName, LastName FROM Contact WHERE LastName Like %'+lastName+'%); } What are two ways the developer can update the method to prevent a SOQL injection attack? Choose 2 answers