Platform Developer 1

Front 1

Apex Triggers- Order of execution: In what order are automation rules and Apex triggers processed (First 8)?

Back 1

1. Old record loaded from database (or initialized for new inserts)

2. New record values overwrite old values

3. System Validation Rules (If inserting Opportunity Products, Custom Validation Rules will also fire in addition to System Validation Rules)

4. All Apex before triggers (EE / UE only)

5. Custom Validation Rules

6. Record saved to database (but not committed)

7. Record reloaded from database

8. All Apex after triggers (EE / UE only)

https://help.salesforce.com/HTViewSolution?id=000005694&language=en_US

Hint 1

O

N

S

A

C

R

R

A

Front 2

Apex Triggers- Order of execution: In what order are automation rules and Apex triggers processed (Next 8)?

Back 2

1. Assignment rules

2. Auto-response rules

3. Workflow rules

4. Processes

5. Escalation rules

6. Parent Rollup Summary Formula value updated (if present)

7. Database commit

8. Post-commit logic (sending email)

https://help.salesforce.com/HTViewSolution?id=000005694&language=en_US

Hint 2

A

A

W

P

E

P

C

P

Front 3

Triggers- How do you prevent a record from being saved?

Back 3

To prevent saving records in a trigger, call the addError() method on the sObject in question. The addError() method throws a fatal error inside a trigger.

Front 4

Trigger- How should callouts be implemented?

Back 4

Asynchronously using a future method (method is annotated with @future(callout=true).

Front 5

There are only two things that you can do with workflow that you can’t do with processes. What are they?

Back 5

Configure actions to be executed at different times.With a process, you can configure actions to be performed at a later time, but all of those actions are performed at the same time. If you need multiple “later”s, use workflow. For example, use multiple time triggers in a workflow rule to send an account manager email reminders one month, two weeks, one week, and three days before the related contract expires.

Send outbound messages without code. However, you can work around this limitation by calling Apex code from a process

Front 6

When should you use Visual Flow?

Back 6

If the process is too complicated for the Process Builder or requires more advanced functionality.

Use complex branching logic

Sort through, iterate over, and operate on several records

Front 7

Describe the differences between SOSL and SOQL

Back 7

Use SOQL to retrieve records for a single object.

Use SOSL to search fields across multiple objects. SOSL queries can search most text fields on an object.

SOSL- returns a list of a list of sobjects

List>(each list contains the searchresults for a particular sObject)

SOQL-returns a list of sObjects, a single sObject, or an Integer for count method queries.

Front 8

What data structures does Apex support?

Back 8

Primitives

sObjects

Collections

Hint 8

P
So
C

Front 9

What are two things that you can do with workflows that you cannot do with process builder?

Back 9

1. Configure actions to be executed at different times.

2. Send outbound messages without code.

Front 10

Which automation tool is best fit for creating wizards?

Back 10

Visual flow

Front 11

When should you use an Apex trigger vs work flow?

Back 11

Need to update children of an object.

Salesforce Workflow rules can perform an update on parent record but not to child records. workflow rules also doesn’t support few standard to standard cross object field update.

Apex trigger for complex validation rules.

Front 12

Describe the Apex primitive data types

Back 12

String - set of characters enclosed in single quotes.

Boolean - Boolean values hold true or false values.

Time, Date and Datetime - Hold time, date, or time and date values combined.

Integer, Long, Double and Decimal - Numeric Values

Null variables - Variables that you don’t assign values to.

Enum - An enumeration of contant values.

Hint 12

Set of Characters
True / False

MM-DD-YYYY

Numeric Values

404

WINTER, SUMMER, SPRING

Front 13

Describe the data types available in Apex:

Back 13

1. Primitives

2. sObject

3. Collection

4. enums

5. User defined objects

6. System defined

7. Null

Front 14

What is an sObject?

Back 14

Any object that can be stored in the Force.com platform database.

*Custom labels are not standard sObjects.

Front 15

Describe the Collection types

Back 15

Lists-A list is an ordered collection of elements that are distinguished by their indices. List elements can be of any data type

Maps- A map is a collection of key-value pairs where each unique key maps to a single value.

Sets- A set is an unordered collection of elements that do not contain any duplicates. A set can contain up to four levels of nested collections inside it, that is, up to five levels overall.

Front 16

Describe the syntax for a set

Back 16

Set s1 = new Set{'a', 'b + c'};

Set s2 = new Set(s1);

Front 17

Declare an enum:

Back 17

public enum Season {WINTER, SPRING, SUMMER, FALL}

Front 18

What is an Apex constant?

Back 18

Apex constants are variables whose values don’t change after being initialized once.

Front 19

How are constants declared?

Back 19

Constants can be defined using the final keyword:

static final Integer PRIVATE_INT_CONST = 200; static final Integer PRIVATE_INT_CONST2;

Front 20

How do you create comments in Apex

Back 20

// comment

/* comment */

Front 21

Why should you use SOQL for loop vs List and for loop?

Back 21

The reason why this happens is because of the limit on heap size. To resolve, use a SOQL query for loop instead, since it can process multiple batches of records through the use of internal calls toqueryandqueryMore

Front 22

In SOQL for loop, what is the batch size?

Back 22

200

Front 23

What is the ideal way of writing a bulkified SOQL for loop?

Back 23

for (Merchandise__c[] tmp : [SELECT Id FROM Merchandise__c])

{ // Perform some actions on the single merchandise record.

}

vs

for (Merchandise__c tmp : [SELECT Id FROM Merchandise__c]) { // Perform some actions on the single merchandise record.}

Front 24

How is a test method class and method declared?

Back 24

//can be private or public

@isTest private class myTest(){

@isTest static void myTestMethod(){

//test logic

}

}

Front 25

Classes defined with the isTest annotation don't count against your organization limit of 3 MB for allApex code. True or False?

Back 25

True

Front 26

What are some of the limitations of test classes?

Back 26

1. No email

2. Test methods can’t be used to test Web service callouts. - use mock callouts

3. If a test class contains a static member variable, and the variable’s value is changed in a testSetup or test method, the new value isn’t preserved.

Front 27

Test classes cannot access private member variables (in the class being tested). How can a test class access the private member variables?

Back 27

Modify the private member variable with the "@TestVisible" annotation...ex,

@TestVisible private Integer recordNumber = 0;

This also works with private methods

Front 28

Apex test data is transient and isn’t committed to the database. True or False

Back 28

True

Front 29

By default, existing organization data is visible to test methods. True or False

Back 29

False

Front 30

What is the syntax for granting data access to a test class?

Back 30

IsTest(SeeAllData=true)

note...Test code saved using Salesforce API version 23.0 or earlier continues to have access to all data in the organization and its data access is unchanged.

Front 31

What other technique can be used to load test data?

Back 31

Test.loadData method, you can populate data in your test methods without having to write many lines of code. ex,

Test.loadData(Account.sObjectType, 'testAccounts');

This will return a list of accounts.

Front 32

To create test records once and then access them in every test method in the test class, what construct must be used?

Back 32

@testSetup static void methodName() {}

* this will be executed first:

Front 33

How can you run a test using a different user context?

Back 33

Use the runAs method to test your application in different user contexts.

Front 34

Which type of sandbox is best suited for testing and why?

Back 34

Full Copy- because it mimics the metadata and data in production and helps reduce differences in code coverage numbers between the two environments.

Front 35

You are writing a test method that could potentially exceed a DML limit. How can you mitigate an exception?

Back 35

The test method contains the Test.startTest() and Test.stopTest() method pair, which delimits a block of code that gets a fresh set of governor limits.

Front 36

How do you write unit test for Apex controller?

Back 36

you can set query parameters that can then be used in the tests.

ApexPages.currentPage().getParameters().put('qp', 'yyyy');

Front 37

Describe the differences between invoking Apex in execute anonymous vs. unit test

Back 37

Unit test executes in system mode and any changes made to records are not visible out of its test execution context where with anonymous block any changes performed to data are visible after its execution is successful. Code written in anonymous block is not stored as metadata in salesforce org and user permissions are enforced during execution.

Front 38

In what two ways can an Apex programmer get information about an object?

Back 38

You can describe sObjects either by using tokens or the describeSObjects Schema method.

Front 39

Apex supports the following five types of procedural loops:

Back 39

do {statement} while (Boolean_condition);

• while (Boolean_condition) statement;

• for (initialization; Boolean_exit_condition; increment) statement;

• for (variable : array_or_set) statement;

• for (variable : [inline_soql_query]) statement;

Front 40

Describe some of the basic string methods:

Back 40

str.length(),

.endsWith('')

.mid(index, length)

Front 41

Describe a ternary operation? syntax...

Back 41

If x, a Boolean, is true, then the result is y; otherwise it isz.

x ? y : z

Front 42

How do you declare a new instance of Date, DateTime, or Time?

Back 42

Date.newInstance()..

Time.newInstance()..

Datetime.newInstance()..

System.today(),

date.today()

System.now(),

Datetime.now()

System.now().time(),

Datetime.now().time()

Front 43

What are the Apex DML methods?

Back 43

* Insert

* Update

* Delete

* UnDelete

* Upsert - Inserts/updates based on Salesforce Id or existing external IDprescribedbrO79

Front 44

What are the Database Class methods?

Back 44

Database.insert();

Database.update();

Database.upsert();

Database.delete();

Database.undelete();

Front 45

When to Use DML Statements vs Database Class methods?

Back 45

Use DML statements if you want any error that occurs during bulk DML processing to be thrown as an Apex exception that immediately interrupts control flow (by using try. . .catch blocks). This behavior is similar to the way exceptions are handled in most database procedural languages.

Use Database class methods if you want to allow partial success of a bulk DML operation—if a record fails, the remainder of the DML operation can still succeed. Your application can then inspect the rejected records and possibly retry the operation. When using this form, you can write code that never throws DML exception errors. Instead, your code can use the appropriate results array to judge success or failure. Note that Database methods also include a syntax that supports thrown exceptions, similar to DML statements.

Front 46

Declare an array of strings:

Back 46

String[] fname = {'Bob','John', 'Juan'}

Front 47

Which method would you use to add an element to an array?

Back 47

.add(element);

Front 48

Which method would you use to empty an array?

Back 48

.clear();

Front 49

How could you get the size of an array?

Back 49

a.size();

Front 50

How could you remove an element of an array?

Back 50

a.remove(integer index);

Front 51

Describe the advanced Apex data types:

Back 51

List

Map

Set

Front 52

When should a List be used?

Back 52

List- when an ordered list is required. You’ll typically use a list whenever you want to store a set of values that can be accessed with an index.

Front 53

When should a set be used?

Back 53

Set- Use a set when you don’t need to keep track of the order of the elements in the collection, and when the elements are unique and don’t have to be sorted.

Front 54

When should a map be used?

Back 54

Use a map when you want to store values that are to be referenced through a key. For example, using a map you can store a list of addresses that correspond to employee IDs.

Front 55

Declare a boolean

Back 55

Boolean name_of_var = false;

or

Boolean name_of_var = true;

Front 56

Syntax for logical AND operator, and OR operator.

Back 56

&&

||

Front 57

When should the String data type be used?

Back 57

When you need to store text values.

Front 58

Declare a new Date that return Oct 14 1973

Back 58

Date bday = Date.newInstance(1973, 10, 14);

Front 59

Declare a new Time var that return 5:30PM

Back 59

Time goHome = Time.newInstance(16,30,0,0);

Front 60

Initialize a DateTime variable with the current Date and Time:

Back 60

DateTime rightNow = DateTime.Now();

Front 61

Initialize a Date variable with today's date:

Back 61

Date currDate = Date.Today();

Front 62

Initialize a Time variable with the current time

Back 62

Time currTime = DateTime.Now().Time();

Front 63

How do you cast '10' to an integer

Back 63

Integer num = Integer.valueOf('10');

Front 64

When should you use an enum?

Back 64

To specify a set of constants.

Front 65

Declare an enum and use an instance:

Back 65

public enum Season

{

WINTER, SPRING, SUMMER, FALL

};

Season s = Season.SUMMER;

if (s == Season.SUMMER) {...}

Front 66

Give an example of a system Enum:

Back 66

System.LoggingLevel

Front 67

What are two ways in which you can modify an element in a list?

Back 67

// using the array notation

myList[0] = 15;

// or using the set method

myList.set(0,15);

Front 68

When should a set be used?

Back 68

When you don’t need to keep track of the order of the elements in the collection, and when the elements are unique.

Front 69

Declare a set with three string characters:

Back 69

Set<String> s = new Set<String>{'a','b','c'};

Front 70

What is the out come of the following operation:

Set s = new Set{'a','b','c'};

s.add('c');

Back 70

Nothing, duplicates cannot be inserted into the set

Front 71

What is a Map?

Back 71

Maps are collections of key-value pairs, where the keys are of primitive data types.

Front 72

When should a Map be used?

Back 72

Use a map when you want to store values that are tobe referenced through a key. For example, using a map you can store a list of addresses that correspond to employee IDs.

Front 73

Create a Map of employee name's and addresses:

Back 73

Map employeeAddresses = new Map();employeeAddresses.put (1, '123 Sunny Drive, San Francisco, CA');

employeeAddresses.put (2, '456 Dark Drive, San Francisco, CA');

Front 74

Which method is used to get a value from a Map

Back 74

.get(index name);

Front 75

Which method is used to add to a Map?

Back 75

.put(index name, value);

Front 76

What is a Class?

Back 76

Classes are templates from which you can create objects

Front 77

What do private modifiers do?

Back 77

The private modifier restricts access to a class, or a class method or member variable contained in a class, so thatthey aren’t available to other classes.

Front 78

What is an interface?

Back 78

Interfaces: Interfaces are named sets of method signatures that don’t contain any implementation.

Front 79

What a Class properties?

Back 79

Properties: Properties allow controlled read and write access to class member variables.

Front 80

What is an interface?

Back 80

An interface is a named set of method signatures (the return and parameter definitions), but without any implementation.

Front 81

What is the benefit of an interface?

Back 81

You can have different implementations of a method based on your specific application.

Front 82

Declare an interface with one method:

Back 82

public interface KitchenUtility {

String getModelNumber();

}

Front 83

Now implement the interface

Back 83

public class Toaster implements KitchenUtility {private String modelNumber;

public String getModelNumber() {

...method implementation

return someString;

}

Front 84

Provide an example of a short hand syntax lets you define a variable and code that should run whenthe variable is accessed or retrieved:

Back 84

public Integer ecoRating {

get { return ecoRating; }

set { ecoRating = value; if (ecoRating < 0) ecoRating =0; }

}

Front 85

Apex code in classes (and triggers) runs in which context?

Back 85

System context

Front 86

When Apex executes, Object and field level security settings are enforced ( True or False)

Back 86

False

Front 87

Apex- A requirement is given that an Apex class must enforce sharing permission of the currently logged on user. What key word enables this?

Back 87

with sharing

Front 88

If an sObject is related to another by a master-detail or lookup relationship, how can you query the parent sObject field?

Back 88

SELECT RelationshipName.Field FROM sObjectName WHERE Where_Condition [...]

Front 89

SOQL-How can you fetch child sObjects?

Back 89

specify a nested query that retrieves all request child sObjects and their fields as follows:

[SELECT Id, Name, (SELECT Units_Sold__c FROM Line_Items__r ]

Front 90

Create a query that accesses the child objects and assigns to a list-

Back 90

Invoice_Statement__c inv = [SELECT Id, Name, (SELECT Units_Sold__c FROM Line_Items__r)FROM Invoice_Statement__cWHERE Name='INV-0000'];

// Access child records.

List = inv.Line_Items__r;

Front 91

What is the most efficient way of implementing a SOQL for loop?

Back 91

Use a list variable:

for (Merchandise__c[] tmp : [SELECT Id FROM Merchandise__c]) {

// Perform some actions on the single merchandise record.

}

Front 92

What happens to deleted records?

Back 92

They go to the recyble bin for 15 days.

Front 93

In Apex, how can you undelete a record(s)?

Back 93

Invoice_Statement__c inv = [SELECT Status__cFROM Invoice_Statement__cWHERE Description__c='My new invoice'ALL ROWS];

undelete inv;

Front 94

When should Database methods be used instead of DML?

Back 94

When to Use DML Statements and Database DML StatementsTypically, you will want to use Database methods instead of DML statements if you want to allow partial success of a bulk DML operationby setting the opt_allOrNone argument to false.

Front 95

What Apex construct can be used to handle exceptions?

Back 95

try {// Perform some database operations that// might cause an exception.} catch(DmlException e)

{// DmlException handling code here.} catch(Exception e)

{// Generic exception handling code here.} finally {// Perform some clean up.}

Front 96

The governor execution limits are per _____

Back 96

Transaction

Front 97

What is wrong with this code:

for(Line_Item__c li : liList) {

if (li.Units_Sold__c > 10)

{li.Description__c = 'New description';}

// Not a good practice since governor limits might be hit.

update li;

}

Back 97

DML update inside a for loop, if the list contains more than 150 elements, an exception will be thrown.

Front 98

What are two ways in which a test method can be declared?

Back 98

static testmethod void myTest()

{// Add test logic}

static @isTest void myTest()

{// Add test logic}

Front 99

How many times can Test.startTest/Test.stopTest be called within a test method?

Back 99

One time within a test method

Front 100

SOQL for loops operate on batch size of___

Back 100

200

Front 101

What does a SOQL for loop help avoid?

Back 101

the heap size limit of 6 MB

Front 102

How are Apex classes scheduled?

Back 102

write an Apex class that implements the Schedulable interface, and then schedule it for executionon a specific schedule.

Front 103

When should a developer use Apex?

Back 103

Create Web services.

• Create email services.

• Perform complex validation over multiple objects.

• Create complex business processes that are not supported by workflow.

• Create custom transactional logic (logic that occurs over the entire transaction, not just with a single record or object).

• Attach custom logic to another operation, such as saving a record, so that it occurs whenever the operation is executed, regardlessof whether it originates in the user interface, a Visualforce page, or from SOAP API.

Front 104

What cannot be done with Apex?

Back 104

Render elements in the user interface other than error messages

• Change standard functionality—Apex can only prevent the functionality from happening, or add additional functionality

• Create temporary files

• Spawn threads

Front 105

– Test methods and test classes are not counted as part of Apex code coverage- True or False

Back 105

True

Front 106

All primitive data types are passed by reference- True or False

Back 106

False, by value

Front 107

What are the Apex primitive data types

Back 107

1. Blob

2. Date

3. Date/Time

4. Time

5. String

6. Integer

7. Decimal

8. Double

9. ID

10. Long

11. Object

7. Boolean

Front 108

What are the two loop control structures?

Back 108

* break; exits the entire loop

* continue; skips to the next iteration of the loop

Front 109

Which Apex class could be used to detect and handle exceptions related to limits?

Back 109

Limits Class

Front 110

How is the Limits class declared?

Back 110

Limits.method();

Front 111

How could you identify the total # of DML limits used by your Apex code?

Back 111

Limits.getDMLStatements()();

Front 112

How could you identify the DML limits available to your code?

Back 112

Limits.getLimitDMLStatements()

Front 113

Which method would you use to get the picklist values?

Back 113

getDescribe();

Account.sObjectType.getDescribe();

Front 114

Using Apex, how could you identify if an object is searchable, can be queried or updated by a specific user?

Back 114

Call the DescribeSObjectResult class and use:

isUpdateable()

isQueryable()

isSearchable()

...by the current user.

Front 115

Using Apex how could you identify if the current user can view a specific field?

Back 115

Using DescribeSObjectResult and isAccessible();

Front 116

.getDescribe() returns what type of object?

Back 116

Schema.DescribeSObjectResult

Front 117

Schema.getGlobalDescribe().get('string object name') returns what type of object?

Back 117

sObjectType -- an object token

Front 118

What are some of the language constructs that Apex supports (first four):

Back 118

Classes, interfaces, properties, and collections (including arrays).

Hint 118

CIPC

Front 119

What are some of the language constructs that Apex supports (second four):

Back 119

Object and array notation.

Conditional statements and control flow statements.

Hint 119

Notations and Statements

Front 120

What are some of the language constructs that Apex supports (last three):

Back 120

Expressions, variables, and constants.

Hint 120

EVC