Glacier Glacier is the archiving tier of S3 in AWS; however, you can use Glacier directly through the API as well. Many different backup tools allow you to store data onto Glacier directly. When using Glacier, be mindful of the RTO because the retrieval times in Glacier fall into three categories: Expedited retrieval: Retrieval of […]

Enabling Amazon GuardDuty Amazon GuardDuty is a regional service. You must first select the region where you will enable the service; once that is done, it is effortless to enable it. Just complete the following steps: After enabling GuardDuty, you will be brought to the main GuardDuty page (that is, the Findings page) by default. […]

THE AWS CERTIFIED ADVANCED NETWORKING – SPECIALTY EXAM OBJECTIVES COVERED IN THIS CHAPTER MAY INCLUDE, BUT ARE NOT LIMITED TO, THE FOLLOWING: Objective 1.3: Design solutions that integrate load balancing to meet high availability, scalability, and security requirements. Elastic Load Balancing In Chapter 1, “Edge Networking,” you learned that the Elastic Load Balancer (ELB) is […]

Responding to Incidents Detecting incidents is one thing, but being able to respond to them in a timely manner is even more important. Assume that you have put in place the necessary mechanisms to detect and prioritize incidents. What is next? Next, you want the ability to remediate these incidents. There can be, however, several […]

Important note You should be aware that there are many alternatives to co-occurrence matrices with a fixed context window, such as using TD-IDF vectorization or even simpler counters of words per document. The most important message here is that, somehow, you must come up with a numerical representation for each word. The last step is […]

S3 Sync S3 sync is an AWS CLI feature that can be a great option when you simply want to copy a large number of files from your production server to AWS. S3 sync creates a synchronization list of files on the local directory with an S3 bucket. The synchronization can also be done in […]

How GuardDuty Works After enabling the GuardDuty service, data is collected from the aforementioned three sources and begins to be analyzed. The service can analyze tens of billions of events from multiple data sources, which are vetted for threat intelligence; it looks for abnormal activity on your account in this manner. If GuardDuty notices anomalous […]

Review Questions The following questions are designed to test your understanding of this chapter’s material. For more information on how to obtain additional questions, please see this book’s introduction.

Centralizing and Analyzing Logs It is essential to consolidate logging from your solution in a central location for further analysis. In that central location, you want to make sure you collect all the logs, whether from AWS services, custom solution components, or third-party services. The objective of aggregating the logs is twofold: analysis and retention. […]

Important note The power and simplicity of BoW come from the fact that you can easily come up with a training set to train your algorithms. If you look at Figure 4.11, can you see that having more data and just adding a classification column to that table, such as good or bad review, would […]