AWS Marketplace In addition to AWS managed services, a large number of partner solutions are available in the AWS Marketplace. You can deploy a third-party firewall solution on a load-balanced auto scaling group of EC2 instances for a higher level of protection. This also allows you to have consistent solutions on-premises and in the cloud. […]

Global keyword is used in Apex to define a class or method as accessible outside of the package. A Global class can be accessed by other classes in different namespaces or by external systems, such as web services. The Global class is commonly used in the following scenarios: •\ Creating Web Services: Apex classes with […]

Compiling to Another Directory By default, the javac command places the compiled classes in the same directory as the source code. It also provides an option to place the class files into a different directory. The -d option specifies this target directory. Java options are case sensitive. This means you cannot pass -D instead of […]

In this chapter, we’ll begin our journey into the theory behind the credential syllabus, starting with Data Modelling and Database Design. You will learn how a Salesforce data model is architected, the design decisions behind it, and how a data model you may create in your job as a Salesforce Data Architect affects sharing and […]

Exercises Written Labs Written Lab 6.1: Simulate Creating a Direct Connection Written Lab 6.2: Simulate Creating a Site-to-Site VPN Connection Review Questions The following questions are designed to test your understanding of this chapter’s material. For more information on how to obtain additional questions, please see this book’s introduction.

Functions Functions go a step further with the level of abstraction they provide. AWS Lambda functions let you focus on developing the application code while they manage and scale the underlying infrastructure for you. You don’t need to package your code in a container, although you can do so if you really want to. Lambda […]

Configuring a Custom Event Bus When you want to receive events, you will need an event bus. This is the pipeline in the AWS system of resources that receives the events. The event bus comprises rules that are examined as the different events come into the event bus. You can have multiple event buses, and […]

5.2  Classes, Interfaces, and Methods A class is a fundamental component that defines an object’s functionality and characteristics. The basic structure of an Apex class consists of class variables also known as properties, and methods defined within the class. It serves as a template or blueprint from which objects are created and defines the behavior […]

Creating a New Package Up to now, all the code we’ve written in this chapter has been in the default package. This is a special unnamed package that you should use only for throwaway code. You can tell the code is in the default package, because there’s no package name. On the exam, you’ll see […]

Understanding Event-Driven Architecture EDA is a software design pattern in which the flow of the system is determined by events rather than a central control flow. In EDA, the system responds to events that occur asynchronously, such as messages received from AWS services, custom events, or even third-party Software as a Service (SaaS) applications. An […]