4.4 Collections In Apex, collections are data structures used to store and manage multiple values of the same or different data types. Collections allow you to work with groups of related data in a more organized and efficient way compared to using individual variables. There are three main types of collections in Apex: Lists, Sets, […]

This chapter covers the following official AWS Certified SysOps Administrator – Associate (SOA-C02) exam domain: Domain 4: Security and Compliance (For more information on the official AWS Certified SysOps Administrator – Associate [SOA-C02] exam topics, see the Introduction.) In this chapter, you learn how to use AWS features to protect data at rest or in […]

Understanding CloudWatch Logs CloudWatch Logs allows you to ingest logs from your AWS services. The CloudWatch Logs service helps you move logs off your host and onto durable storage. The S3 service backs this durable storage. Once they have moved there, they are retained until you change the retention period. With logs stored in CloudWatch […]

Optics Modern network interfaces include options for either electrical or optical media types. In this section, you will learn about fiber-optic networks. Fiber-optic media has many advantages over copper in most deployments. For example, fiber cables are not subject to electrical magnetic interference since they transmit optical, not electrical, signals. Fiber cables are much more […]

DR Options on AWS As opposed to traditional infrastructure deployment on-premises, the cloud lets you take a much more dynamic approach to DR. It frees you from the capital investment that you need to make on-premises to provision DR infrastructure. It also makes DR infrastructure readily available for you to speed up recovery; thus, you […]

THE AWS CERTIFIED ADVANCED NETWORKING – SPECIALTY EXAM OBJECTIVES COVERED IN THIS CHAPTER MAY INCLUDE, BUT ARE NOT LIMITED TO, THE FOLLOWING: Objective 1.5: Design a routing strategy and connectivity architecture between on-premises networks and the AWS Cloud. Objective 1.6: Design a routing strategy and connectivity architecture that include multiple AWS accounts, AWS Regions, and […]

Textual analysis Modern applications use Natural Language Processing (NLP) for several purposes, such as text translation, document classifications, web search, Named Entity Recognition (NER), and many others. AWS offers a suite of algorithms for most NLP use cases. In the next few subsections, you will have a look at these built-in algorithms for textual analysis. […]

Written Labs Written Lab 5.1: Enable CloudWatch Detailed Monitoring for an Instance That Has Already Been Enabled Written Lab 5.2: Enable CloudWatch Logging from the Web Console Written Lab 5.3: Enable CloudWatch Alarms from the Web Console Written Lab 5.4: Create a VPC Reachability Analyzer from the Web Console

Introducing the exam The exam format consists of 60 multiple-choice questions, and candidates are given 105 minutes to complete the exam. The passing score that’s required at the time of writing is 58%, and there are no written prerequisites for the exam (although, as you will discover quite quickly, it is extremely challenging to dive […]

Comments Another common part of the code is called a comment. Because comments aren’t executable code, you can place them in many places. Comments can make your code easier to read. While the exam creators are trying to make the code harder to read, they still use comments to call attention to line numbers. We […]