Notes on FF Questions

Question 1

What is the correct order of save operations in SF?

Answer 1

Before Triggers; Validation Rules; After Triggers; Assignment Rules; Workflow Rules; Commit

Question 2

What are page controllers?

Answer 2

Page Controllers are essentially apex classes which are used to provide pages with data and business logic that defines how to access data

Question 3

What are standard controllers

Answer 3

These are provided by salesforce for every standard and custom object

Question 4

What can be uploaded as static resources in VF?

Answer 4

Stylesheet, Javascript, images, archive, files

Question 5

What does CSS stand for

Answer 5

Cascading Style Sheet

Question 6

What is an iFrame component?

Answer 6

These can be used to display an external website in SF

Question 7

How do you display fields from related records in Visual Force?

Answer 7

Using Merge Field Syntax

Question 8

What defines a custom controller?

Answer 8

A custom controller implements logic without leveraging a standard controller or building off its funcitonality

Question 9

What do standard controllers contain?

Answer 9

Funcitonality that is used for standard Salesforce Pages

Question 10

How can you ignore field level security and permissions with a visualforce page?

Answer 10

Use a custom controller

Question 11

What controller is used for custom objects by default?

Answer 11

Standard

Question 12

What are the limits of a standard list controllers?

Answer 12

Data can be retrieved up to five levels of child to parent relationships and u to one level of parent child

Question 13

What actions can custom controllers be used to override?

Answer 13

Edit, view, save, delete, add new

Question 14

What should you use when: a Visualforce page requires basic functionality

Answer 14

Standard Controller

Question 15

What should you use when: standard actions do not need to be customized

Answer 15

Standard Controller

Question 16

Used to displayalist of records

Answer 16

Standard List Controller

Question 17

Use list viewfilters on a Visualforce page

Answer 17

Standard List Controller

Question 18

Create a Visualforce page with pagination features

Answer 18

Standard List Controller

Question 19

Used to create a custom list controller or extend the pre-built Visualforce list controller

Answer 19

Standard Set Controller

Question 20

Add features not supported by standard list controllers such as custom sorting

Answer 20

Standard Set Controller

Question 21

Used to extend or override a standard action

Answer 21

Controller Extension

Question 22

Add a custom buttonto a page

Answer 22

Controller Extension

Question 23

Build a page that respects user permissions

Answer 23

Controller Extension

Question 24

Used to implement total custom logic

Answer 24

Custom Controller

Question 25

Use if the page needs to use web services or HTTP callouts

Answer 25

Custom Controller

Question 26

Build a page that runs entirely in system mode

Answer 26

Custom Controller

Question 27

Create a page with new actions

Answer 27

Custom Controller

Question 28

Customize user navigation

Answer 28

Custom Controller

Question 29

What are the two reasons to use a controller extension instead of a custom controller?

Answer 29

- If the funcitonality already exists somewhere else, an extension allows for reuse - Declarative features depend on a standard controller, so you should consider using one if they are involved

Question 30

What are getter and setter methods?

Answer 30

Used to retrieve and submit values

Question 31

What can visualforce be?

Answer 31

Pretty much anything including standard pages and tabs

Question 32

Can an aura component contain a lightning web component?

Answer 32

No

Question 33

What do Aura components require in order to be used?

Answer 33

an interface

Question 34

What do lightning components require in order to be used

Answer 34

is exposed set to true in the configuration file and atleast one of the targest such as lightning_AppPage

Question 35

What are the four steps of apex testing?

Answer 35

- write unit tests - run unit tests - generate code coverage - check test results

Question 36

Why do startTest and stopTest methods exist?

Answer 36

To separate test code from setup code

Question 37

What does a trace flag do?

Answer 37

Helps you to trace issues in the debug log

Question 38

What is package development?

Answer 38

every customization is managed as a single, separately deployable unit

Question 39

What Apex control statement allows a developer to traverse a dataset of unknown size?

Answer 39

For(Type variable: listOrSet) loop

Question 40

System.assert() vs. runAs()

Answer 40

System.assert tests the behaviour of the code whereas runAs allows you to test different user contexts

Question 41

What triggers do platform events support?

Answer 41

'after insert'

Question 42

What is the difference between Stack Tree, Execution Stack, Execution Log, Executed Units, and Source

Answer 42

https://help.salesforce.com/s/articleView?id=sf.code_dev_console_view_system_log.htm&type=5

Question 43

How does API version affect which tests are run during deployment?

Answer 43

API 33.0 or earlier runs all local test by default except tests that come from installed managed packages. In API 34 or above, no tests are run by default if there is no apex class or trigger.

Question 44

What Visualforce component is used to display the standard detail page of a particular object?

Answer 44

apex:detail

Question 45

What is used to reference CSS in apex?

Answer 45

apex:stylesheet value

Question 46

What debug level gives access to a trace flag?

Answer 46

Finest

Question 47

What are the Child to Parent and Parent to Child Query Limits

Answer 47

Parent to Child is 5 Levels | Child to Parent is 1 Level

Question 48

What are the two keywords used to denote sharing in a visualforce controller?

Answer 48

With Sharing and Inherited sharing

Question 49

What is a standard controller action that aborts an edit operation?

Answer 49

Cancel

Question 50

Can a secondary manager be recorded with hierarchies?

Answer 50

Yes

Question 51

To use custom lightning components, what must be enabled?

Answer 51

Mydomain

Question 52

Can standard list controllers save attachments?

Answer 52

No, you need a custom list controller

Question 53

what is the addError() method used for?

Answer 53

to handle errors that may be caused by DML statements in Apex triggers

Question 54

What are 3 major security vulnerabilities in apex and visualforce development?

Answer 54

Cross-site Request Forgery, SOQL Injection, and Cross-Site Scripting

Question 55

When partial success is allowed, what is returned?

Answer 55

A list of SaveResult Objects

Question 56

Can the LimitException be caught?

Answer 56

No, the limit exception can never be caught

Question 57

What are three valid org types?

Answer 57

Scratch, Trial Production, Partner Developer Edition

Question 58

How can Apex triggers be used to prevent DML from succeeding?

Answer 58

addError() method

Question 59

Can multi-select picklist values be specified with AND/OR logic?

Answer 59

Yes

Question 60

What are some valid methods of preventing a soql attack?

Answer 60

1. Static queries with bind variables 2. String.escapeSingleQuotes() 3. Typecasting 4. Replacing characters 5. Allowlisting

Question 61

What are Lightning Platform Esapi and JSENCODE() used to prevent?

Answer 61

cross site scripting XSS attacks

Question 62

What is getCause() used for in Apex?

Answer 62

To get the cause of an exception

Question 63

What is getMessage() used for in Apex?

Answer 63

To get the message that has been displayed to the user

Question 64

SOQL statements can evaluate to which data types?

Answer 64

sObject, List of sObject, and Integer

Question 65

Can list or set for loops be used for parellel iteration?

Answer 65

no