Salesforce DEX-450 Quiz 25 Topic 9 Questions 121-125

Question: 1

A developer uses an 'after update' trigger on the Account object to update all the Contacts related to the Account. The trigger code shown below is randomly failing.

List&lt;Contacts&gt; theContacts = new List&lt;Contacts&gt;(); for(Account a : Trigger.new){

for(Contact c : [SELECT Id, Account_Date__c FROM

Contact WHERE AccountId = :a.Id]){ c.Account_Date__c = Date.today(); theContacts.add(c);

}

} updates theContacts;

Which line of code is causing the code block to fail?

AAn exception is thrown if theContacts is empty

BThe trigger processes more than 200 records in the for loop.

CAn exception is thrown if Account_Date__c is null.

DA SOQL query is located inside of the for loop.

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Question: 2

What are two valid options for iterating through each Account in the collection List &lt;Account&gt; named AccountList? Choose 2 answers.

AFor (List L : AccountList) {...}

BFor (Account theAccount : AccountList){...}

CFor(AccountList){...}

DFor (Integer i=0; i<AccountList. Size();i++){...}

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Question: 3

A developer executes the following code in the Developer Console:

List&lt;Account&gt; fList = new List &lt;Account&gt; ();For(integer i= 1; I &lt;= 200; i++){fList.add(new Account ( Name = 'Universal Account ' + i));}Insert fList;List &lt;Account&gt; sList = new List&lt;Account&gt;();For (integer I = 201; I &lt;=

20000; i ++){sList.add(new Account (Name = 'Universal Account ' + i));}Insert sList;How many accounts are created in the Salesforce organization ?

A20000

B0

C200

D1000

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Question: 4

Given:

Map&lt;ID, Account&gt; accountMap = new Map&gt;ID, Account&gt; ([SELECT Id, Name FROM Account]);

What are three valid Apex loop structures for iterating through items in the collection? (Choose three.)

Afor (ID accountID : accountMap.keySet()) {...}

Bfor (Account accountRecord : accountMap.values()) {...}

Cfor (Integer i=0; I < accountMap.size(); i++) {...}

Dfor (ID accountID : accountMap) {...}

Efor (Account accountRecord : accountMap.keySet()) {...}

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Question: 5

A developer runs the following anonymous code block:List&lt;Account&gt; acc = [SELECT Id FROM Account LIMIT 10];Delete acc;Database.emptyRecycleBin(acc);system.debug(Limits.getDMLStatements()+ ', '

+Limits.getLimitDMLStatements());What is the result?

A11, 150

B150, 2

C150, 11

D2, 150

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Salesforce DEX-450 Quiz:25 Topic:9 Questions:121-125