Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 191:

  Which two queries can a developer use in a Visualforce controller to protect against SOQL injection vulnerabilities? Choose 2 answers

  A. String qryName = % + String.enforceSecurityChecks(name)+ % ; String qryString = SELECT Id FROM Contact WHERE Name LIKE :qryNAme ; List queryResults = Database.query(qryString);

  B. String qryName = % + name % ; String qryString = SELECT Id FROM Contact WHERE Name LIKE :qryNAme ;

  C. List queryResults = Database.query(qryString);

  D. String qryName = % + String.escapeSingleQuotes(name)+ % ; String qryString = SELECT Id FROM Contact WHERE Name LIKE :qryNAme ; List queryResults = Database.query(qryString);

  E. String qryString = SELECT Id FROM Contact WHERE Name LIKE :qryNAme ; List queryResults = Database.query(qryString);

  Correct Answer: BC

• Question 192:

  A developer has the following code:

  try {List nameList;Account a;String s = a.Name;nameList.add(s);} catch (ListException le ) {System.debug('

  List Exception ');} catch (NullPointerException npe) {System.debug('

  NullPointer Exception ');} catch (Exception e) {System.debug(' Generic Exception ');}

  What message will be logged?

  A. List Exception

  B. NullPointer Exception

  C. Generic Exception

  D. No message is logged

  Correct Answer: B

• Question 193:

  What are two considerations for custom Apex Exception classes? Choose 2 answers.

  A. Custom Exceptions cannot be extended by other Exception classes.

  B. Custom Exception class names must end with the word 'Exception'.

  C. Custom Exception classes must extend the base Exception class.

  D. Constructor for custom Exceptions can only accept string values as arguments.

  Correct Answer: BC

• Question 194:

  A developer is debugging the following code to determinate why Accounts are not being created Account a = new Account(Name = 'A'); Database.insert(a, false); How should the code be altered to help debug the issue?

  A. Add a System.debug() statement before the insert method

  B. Add a try/catch around the insert method

  C. Set the second insert method parameter to TRUE

  D. Collect the insert method return value a Saveresult record

  Correct Answer: D

• Question 195:

  What is a capability of the Developer Console?

  A. Execute Anonymous Apex code, Create/Edit code, view Debug Logs.

  B. Execute Anonymous Apex code, Run REST API, create/Edit code.

  C. Execute Anonymous Apex code, Create/Edit code, Deploy code changes.

  D. Execute Anonymous Apex code, Run REST API, deploy code changes.

  Correct Answer: A

• Question 196:

  Which data structure is returned to a developer when performing a SOSL search?

  A. A list of lists of sObjects.

  B. A map of sObject types to a list of sObjects

  C. A map of sObject types to a list oflists of sobjects

  D. A list of sObjects.

  Correct Answer: A

• Question 197:

  Which is a valid Apex assignment?

  A. Integer x = 5.0;

  B. Float x = 5.0;

  C. Integer x = 5*1.0;

  D. Double x = 5;

  Correct Answer: D

• Question 198:

  When creating a record with a Quick Action, what is the easiest way to post a feed item?

  A. By selecting create feed item on the quick action.

  B. By adding a trigger on the new record.

  C. By adding a workflow rule on the new record.

  D. By selecting create case feed on the new record.

  Correct Answer: A

• Question 199:

  How can a developer get all of the available record types for the current user on the case object?

  A. Use SOQL to get all cases

  B. Use describesobjectresult of the case object

  C. Use case.getrecordtypes()

  D. Use describefieldresult of the case.recordtype field

  Correct Answer: D

• Question 200:

  What is the minimum log level needed to see user-generated debug statements?

  A. DEBUG

  B. FINE

  C. INFO

  D. WARN

  Correct Answer: A