VPC Reachability Analyzer The VPC Reachability Analyzer is used to validate your network connectivity, troubleshoot, identify network configuration issues, and automate validations for connectivity after configuration changes or new deployments. The VPC Reachability Analyzer checks the network path taken by a packet from the source to destination. The tool creates a logical model of the […]

Computing K-Means step by step In this example, you will simulate K-Means in a very small dataset, with only two columns (x and y) and six data points (A, B, C, D, E, and F), as defined in Table 6.8. Point x y A 1 1 B 2 2 C 5 5 D 5 6 […]

Metric Insights Metric Insights is part of the CloudWatch service offerings. Metric Insights provides an SQL-based query engine that can search millions of metrics in real time. Metric Insights allows you to capture trends and data patterns as they occur, enabling you to respond quickly to events using SQL-based queries. Metric Insights allows for the […]

3.4 Flow Components Salesforce Flow consists of several components that work together to automate business processes. These components include elements, variables, and connectors. Elements represent the actions that the flow can execute. Elements are connected together to define the flow’s sequence and logic, determining the order in which actions are executed. There are different types […]

IAM User Groups You will often find that multiple IAM users have the same permissions. Instead of individually assigning each user specific permissions, you can create a user group, assign the appropriate permissions, and then assign users to the group. When you’re creating group accounts, the Add Group Wizard prompts you to provide information about […]

Downloading a JDK Every six months, Oracle releases a new version of Java. Java 17 came out in September 2021. This means that Java 17 will not be the latest version when you download the JDK to study for the exam. However, you should still use Java 17 to study with since this is a […]

Logging CloudWatch acts as a centralized logging collection repository for both system- and application-level logs generated by all of your devices and services and also external services running in your data center with the installation of the CloudWatch logs agent. By centralizing logging into CloudWatch, you have a central repository of all logs generated by […]

IAM Permissions for Publishing Logs to CloudWatch Logs There is a specific set of permissions that must be enabled for a user or service to send logs to the CloudWatch Logs service: If you have CloudWatch Logs being sent to a log group in CloudWatch Logs, you also need the logs:CreateLogDelivery permission. IAM Permissions for […]

Monitoring Categories There are three different types of monitoring that allow you to pick which one best fits your needs and budget. By selecting either default, detailed, or custom monitoring, you are selecting the time interval between measurements. Standard monitoring is the default and supported by all AWS services. The interval is 5 minutes, and […]

Unsupervised learning AWS provides several unsupervised learning algorithms for the following tasks: Let us start by talking about clustering and how the most popular clustering algorithm works: K-Means. Clustering Clustering algorithms are very popular in data science. Basically, they aim to identify similar groups in a given dataset, also known as clusters. Clustering algorithms belong […]