Introducing AWS Storage Gateway AWS Storage Gateway is a service that provides a series of solutions to expand your storage infrastructure into the AWS cloud for purposes such as data migration, file shares, backup, and archiving. It uses standard protocols to access AWS storage services such as Amazon Simple Storage Service (S3), Amazon S3 Glacier, […]

Classic Load Balancers The classic load balancer is a legacy service from AWS that was used on the pre-VPC EC2 classic and Standard EC2 VPC instances. It was retired on August 15, 2022, and is no longer available. Pricing was based on the hours (or partial hour) that the load balancer was operational with an […]

Security Considerations for SQS Having gone over the functions of the SQS service along with how it differs from the SNS service, you can now examine some of the security best practices for SQS: Create a specific role for the administration of the queues that do not have access to consume or publish messages. This […]

Cram Quiz Answer these questions. The answers follow the last question. If you cannot answer these questions correctly, consider reading this section again until you can. 1. You have been put in charge of designing a monitoring platform for an application for a large enterprise. The monitoring system needs to be highly available and should allow […]

Security Considerations for SNS The following points present some of the security considerations and best practices when using SNS: Simple Queue Service (SQS) The managed queue example at the beginning of this section referenced a queueing system wherein requests could be held until they were ready to be processed. This type of queue enables you […]

Network Load Balancer The AWS network load balancer (NLB) is used for very high-performance use cases and operates at the network layer, layer 4, of the OSI model. The service has a lengthy list of features, as illustrated in Figure 1.15. The NLB can handle millions of connections per second and is used in very demanding […]

Distinguishing between object tags and object metadata Let’s compare these two terms: Important note Metadata names are case-insensitive, whereas tag names are case-sensitive. In the next section, you are going to learn about controlling access to buckets and objects on Amazon S3 through different policies, including the resource policy and the identity policy. Controlling access […]

Percentiles Percentiles are available for some AWS services. They enable you to understand where in a particular percentile of the service a specific dimension lies. This information allows you to find outliers and use the data in long-term statistical analysis. CloudWatch Alarms As we already mentioned, the CloudWatch service enables you to trigger alerts when […]

Six Benefits of the AWS Cloud This section covers the following official AWS Certified SysOps Administrator – Associate (SOA-C02) exam domains: Domain 1: Monitoring, Logging, and Remediation Domain 2: Reliability and Business Continuity Domain 3: Deployment, Provisioning, and Automation Domain 6: Cost and Performance Optimization CramSaver If you can correctly answer these questions before going […]

Document Databases A document database is a non-relational (or NoSQL) database that allows you to store documents and data in the JSON-type format and query that data. One of the truly unique features of document databases is that there is no fixed schema and that they can have documents nested inside of each other. AWS […]