Which action can a developer take to reduce the execution time of the following code? List<account> allaccounts = [select id from account]; list<account> allcontacts = [select id, accountid from contact]; for (account a :allaccounts){ for (contact c:allcontacts){ if(c.accountid = a.id){ //do work } } }

• A.Use a map <id,contact> for allaccounts
• B.Put the account loop inside the contact loop
• C.Add a group by clause to the contact SOQL
• D.Create an apex helper class for the SOQL

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Which two are best practices when it comes to component and application event handling? Choose 2 answers

• A.Handle low-level events in the event handler and re-fire them as higher-level events. (Missed)
• B.Try to use application events as opposed to component events.
• C.Use component events to communicate actions that should be handled at the application level.
• D.Reuse the event logic in a component bundle, by putting the logic in the helper. (Missed)

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A change set deployment from a sandbox to production fails due to a failure in a managed package unit test. The developer spoke with the manager package owner and they determined it is a false positive and can be ignored. What should the developer do to successfully deploy?

• A.Select 'Run local tests' to run all tests in the org that are not in the managed package.
• B.Select 'Run local tests' to run only the tests that are in the change set.
• C.Edit the managed package's unit test.
• D.Select 'Fast Deploy' to run only the tests that are in the change set.

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A developer created a Lightning component to display a short text summary for an object and wants to use it with multiple Apex classes.
How should the developer design the Apex classes?

• A.Extend each class from the same base class that has a method getTextSummary() that returns the summary.
• B.Have each class implement an interface that defines method getTextSummary() that returns the summary.
• C.Have each class define method getObject() that returns the sObject that is controlled by the Apex class.
• D.Have each class define method getTextSummary() that returns the summary.

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A developer has the following class and trigger code:
public class InsuranceRates { public static final Decimal smokerCharge = 0.01; } trigger ContactTrigger on Contact (before insert) { InsuranceRates rates = new InsuranceRates(); Decimal baseCost = XXX; } Which code segment should a developer insert at the XXX to set the baseCost variable to the value of the class variable smokerCharge?

• A.Rates.getSmokerCharge()
• B.ContactTrigger.InsuranceRates.smokerCharge
• C.InsuranceRates.smokerCharge
• D.Rates.smokerCharge

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