CloudWatch Alarms With the metrics that CloudWatch provides, the service also allows you to monitor metrics and events that can automatically initiate actions (such as sending out an SNS notification) when certain conditions are met, in near real time. CloudWatch alarms can be used for a multitude of purposes, including detecting unusual behavior or performance […]

Summary In this chapter, you learned the main differences between High Availability and Disaster Recovery. You reviewed how to prepare for a disaster and which major strategies are available in the cloud. You also went through the various AWS services that can support each of these strategies. Finally, this chapter emphasized the importance of testing […]

Querying and Searching CloudWatch Logs CloudWatch Logs provides you with a few different search capacities to efficiently analyze your log data and search through your log files. These capacities include the following: The following section presents a simple scenario for searching through log files stored in CloudWatch Logs. Performing a Search in CloudWatch Logs Go […]

Direct Connect Gateway The AWS Direct Connect gateway simplifies your Direct Connect architecture. Traditionally with Direct Connect, a separate connection would need to be established from your data center to each AWS region you wanted to connect to. If you needed to connect to two different regions, for example, since DX is a regional service, […]

Model optimization As you know, understanding evaluation metrics is very important in order to measure your model’s performance and document your work. In the same way, when you want to optimize your current models, evaluating metrics also plays a very important role in defining the baseline performance that you want to challenge. The process of […]

do-while Loop: The do-while procedural loop is similar to the while loop, but it executes the code block at least once, regardless of whether the condition is true or false. It’s similar to the while loop, but with a key difference: the do-while loop always executes its block of code at least once before checking […]

Direct Connect Direct Connect (DX) allows you to bypass the public Internet to connect directly between your data center and an AWS region. This is a private connection that gives you the benefit of security with a consistent speed at low latency. If you have large volumes of data to transfer, you may achieve lower […]

Dynamic Routing Dynamic routing records all topology changes, updates automatically, and adjusts to changing networking conditions. Dynamic routing uses well-defined protocols such as OSPF internally or BGP between companies to exchange the routing information without ongoing administrative intervention. Internal routing methods used inside of a company’s network are referred to as Internal Gateway Protocols (IGPs) […]

Other Salesforce credentials in the Application Architect domain As you’ll know, there are several Salesforce certifications for each of the CTA domains. Looking at the Application Architect domain specifically, the following credentials comprise it: Figure 1.2 – The Application Architect domain You may already have some or all the other credentials in the Application Architect […]

Detecting a Disaster and Testing DR The first step, before you can take any countermeasures, is to detect that a disaster is actually taking place. Your recovery objectives (RTO and RPO) will dictate how much time you actually have to do so. Consider a situation where you have an RTO of 4 hours with an […]