ExamAlert Not all scalable applications are inherently elastic.for example, an application that only supports vertical scaling. Not all elastic applications are inherently highly available.for example, a horizontally scalable application in one availability zone. Not all highly available applications are inherently resilient.for example, an application distributed across two availability zones with each location able to handle […]

Establishing Governance with Tagging Organizing resources in a meaningful way helps IT teams understand cost spending and overall usage patterns of even the most complex workloads, and this organization of resources can be achieved by leveraging a simple concept called tags. This section covers tagging in depth, as well as discussing some essential best practices […]

You have probably heard that data scientists spend most of their time working on data-preparation-related activities. It is now time to explain why that happens and what types of activities they work on. In this chapter, you will learn how to deal with categorical and numerical features, as well as how to apply different techniques […]

EC2 Resource Isolation Assume you have an EC2 instance initiating unexpected API behavior. This has been identified as an anomaly and is considered to be an abnormal operation. As a result, this instance is showing signs of being a potentially compromised resource. Until you have identified the cause, you must isolate the resource to minimize […]

This chapter covers the following official AWS Certified SysOps Administrator – Associate (SOA-C02) exam domains: Domain 2: Reliability and Business Continuity Domain 5: Networking and Content Delivery (For more information on the official AWS Certified SysOps Administrator – Associate [SOA-C02] exam topics, see the Introduction.) CramSaver If you can correctly answer these questions before going […]

Exam Readiness Drill – Chapter Review Questions Apart from a solid understanding of key concepts, being able to think quickly under time pressure is a skill that will help you ace your certification exam. That is why working on these skills early on in your learning journey is key. Chapter review questions are designed to […]

Using Route 53 Resolver Endpoints in Hybrid and AWS Architectures Resolvers in a VPC can be configured as either inbound, outbound, or both. Inbound allows queries from your internal DNS deployment to the DNS server in your VPC. Outbound enables VPC DNS queries to your on-premise DNS, and both enable queries in both directions. When […]

Unauthorized Activity in Your Account If you receive a notice from AWS support that there has been abuse in your account or if you suspect that there has been unauthorized activity in your account, the following steps can help you confirm that it was an actual unauthorized activity: What to Do if You Do Find […]

Cost Optimization Principles Cost optimization, for any and all workloads, is a continuous process of refinement and improvement. This section will discuss some key design principles that all solutions architects as well as cloud FinOps (which stands for financial operations) teams should keep in mind when optimizing costs for their workloads: Having explored the key […]

AWS Batch This is a managed batch-processing product. If you are using AWS Batch, then jobs can be run without end user interaction or can be scheduled to run: Note If you get a question in the exam on an event-style workload that requires flexible compute, a higher disk space, no time limit (more than […]