Edge Caching When content is delivered frequently to multiple users, you can employ edge caching or what is more commonly referred to as a content delivery network. In AWS, you can use the Amazon CloudFront service to deliver frequently used content in a highly efficient manner to millions of users around the globe while at […]

Resolvers DNS resolvers are at the heart of DNS functionality. Resolvers, also known as recursive resolvers, receive queries that contain the hostname and reply with the IP address of that hostname, as shown in Figure 2.7. The Route 53 Resolver acts as a bridge between your on-premise DNS infrastructure and the AWS VPC. Route 53 […]

Querying S3 data using Athena Athena is a serverless service designed for querying data stored in S3. It is serverless because the client doesn’t manage the servers that are used for computation: Now, to help you understand this, here’s an example, where you will use AWSDataCatalog created in AWS Glue on the S3 data and […]

Exam Readiness Drill For the first three attempts, don’t worry about the time limit. ATTEMPT 1 The first time, aim for at least 40%. Look at the answers you got wrong and read the relevant sections in the chapter again to fix your learning gaps. ATTEMPT 2 The second time, aim for at least 60%. […]

CramSaver If you can correctly answer these questions before going through this section, save time by skimming the Exam Alerts in this section and then completing the Cram Quiz at the end of the section. 1. You have implemented autoscaling on both the web and app tier of your three-tier application, but in times of high […]

AI Services Opt-Out Policies This type of policy lets you decide whether you allow AI services to collect data when they’re being used across your organization. Some AI services provided by AWS, such as Amazon Lex, Amazon Polly, Amazon Rekognition, and more (for a complete list, please consult the AWS documentation) may store and collect […]

Artificial Intelligence and Machine Learning Since CloudTrail and CloudWatch collect logging and metric data from Route 53 operations, this can be stored and analyzed with AI/ML tools offered by AWS and its business partners. Companies such as Splunk and others offer services in this space. Check the AWS Marketplace for the latest information. Redshift Redshift […]

Summary In this chapter, you learned about some of the most prevalent attacks that security engineers face. This knowledge of common attacks puts the need for security services into perspective. It also gives you an understanding of the various services you will need as you go through the rest of this book with a crucial […]

Getting hands-on with AWS Glue ETL components In this section, you will use the Data Catalog components created earlier to build a job. You will start by creating a job: This is optional. Then, click on the Run job button: Figure 3.6 – A screenshot of the AWS Glue ETL job Figure 3.7 – A […]

Predictive Scaling Another AutoScaling feature is predictive scaling, which uses machine learning to learn the scaling pattern of your application based on the minimum amount of historical data. The machine learning component then predicts the scaling after reviewing CW data from the previous 14 days to account for daily and weekly spikes as it learns […]