Exercises Written Labs Written Lab 4.1: Create a Network Load Balancer Written Lab 4.2: Use the Console to Enable Deletion Protection Written Lab 4.3: Use the Console to Disable Deletion Protection Written Lab 4.4: Enable Application-Based Stickiness

VPC Traffic Mirroring VPC Traffic Mirroring, as the name implies, allows you to duplicate network traffic from ENIs attached to instances so that the duplicated traffic can then be sent to third-party tools and services for traffic analysis and inspection. When configured, the duplicated traffic is sent to a target; this could be a Network […]

Important note The term weaker is used in this context to describe very simple decision trees. Although XGBoost is much more robust than a single decision tree, it is important to go into the exam with a clear understanding of what decision trees are and their main configurations. By the way, they are the base […]

Storage Components A storage component is the underlying device where the data is stored. This can include a magnetic hard drive, a solid-state drive, or a tape device. In terms of patching, the devices themselves may require occasional firmware updates (see the next section on firmware). Additionally, the software used by an operating system to […]

Platform Event-Triggered Flow in Salesforce Flow Builder combines the capabilities of platform events and flows to automate processes based on the occurrence of platform events. A platform event is a custom object in Salesforce used to publish and subscribe to events within the Salesforce ecosystem and between Salesforce and external systems. Platform Event-Triggered Flows allow […]

Aggregation – Defining and Calculating Metrics As already mentioned, several AWS services provide service-specific metrics in CloudWatch out of the box. For others, for instance, VPC Flow Logs, you’ll have to define metrics yourself by extracting data directly from the logs in CloudWatch. You do that by creating a metric filter that will look for […]

TLS Passthrough TLS passthrough is the more traditional design for load balancers that do not process SSL/TLS traffic on port 443. The load balancer does not have any digital certificates locally installed and just passes all encrypted traffic to the backend servers for them to perform the encryption and decryption functions, as shown in Figure […]

Accessing VPC Flow Logs for Reading After you have enabled VPC Flow Logs, the next step is to figure out how you will access them to take advantage of the data that has been collected. You can access your logs via the AWS Management Console. Since the logs will be stored in S3, you can […]

Working with classification models You have been learning what classification models are throughout this book. However, now, you are going to look at some algorithms that are suitable for classification problems. Keep in mind that there are hundreds of classification algorithms out there, but since you are preparing for the AWS Certified Machine Learning Specialty […]

Rollups A rollup is a collection of hot fixes. In some cases, the rollup might contain more than just security updates, but the main focus is to address a collection of security or critical issues with a single update. Patching Cloud Components Although many patches are designed to fix an issue with a product, some […]