The latest Amazon Web Services (AWS) Solutions Architect exam would be reflecting new trends in the cloud space. Cloud infrastructure continues to expand with 2018 growth rates much higher than the previous year, according to Synergy Research. AWS dominates the global cloud-infrastructure services industry, with a market share of 34%, equal to that of the next four public cloud providers combined. Because of AWS’ dominance, IT teams would be needed to stay up to speed with the latest AWS certifications. So, we would be discussing about the strategies to prepare for the AWS Certification Exam. So, if you wish to acquire the Aruba Certification, you should acquire the training courses offered by the SPOTO Club.
- 5 pillars of good architecture in AWS Certification
There would be 5 pillars of a well-architected IT framework–Security, Operational Excellence, Reliability, Performance, as well as Cost Optimization. The latest AWS Certified Solutions Architect exam would be diving deep into the specialized solutions for each of these 5 pillars. Two years ago, the AWS Certified Solutions Architect exam wouldn’t be considered as hard, in part, because it didn’t go as in-depth in these specific solutions. This latest exam would be focusing on ensuring IT applications follow best practices as well as the state-of-the-art architecture in each of these 5 pillars.
- Serverless solutions architecture
In the cloud industry, everyone is moving toward serverless. Serverless computing allows developers to use code snippets to run applications that help reduce the time-consuming and complex IT task of managing software stacks on virtual servers. AWS led the charge by launching
- Disaster recovery
How do you architect an application, so when a whole data center goes down you have a backup? This might include putting backup data on a different cloud server in a different country or location. This applies not just to the cloud, but to on-premise data centers as well. Generally, disaster recovery has four strategies. RPO expresses how much data loss a company can tolerate in terms of minutes, hours, or days. RTO reflects how much time a company’s servers are willing to be down. The lower the RPO and RTO, the more costly your disaster recovery strategy will be. The four strategies include:
- Backup and restore. This involves sending backups every once in a while to the AWS cloud. When disaster strikes, you can restore data from these backups. However, there will be some data loss, depending on how frequently you schedule your backups. When it comes to restoring your data, you will have to spin up an entirely new infrastructure.
- Pilot light. Similar to a pilot light in your kitchen, this approach keeps critical systems like your database up and running, but does not include all of your web servers. If disaster strikes, you will still need to spin up your entire infrastructure, but you’ll have the most critical elements ready to go.
- Warm standby. In this case, you have a copy of your complete infrastructure up and running in another region. It’s not in use, but it’s ready to scale quickly when needed. Retail websites that might need to ramp up during big sales events can set up ramp up infrastructure in another location as a backup.
- Multi-sites. In this situation, organizations would have their full production load running on-premise and on the cloud, both used at the same time. By running a multi-data center, if one fails, you can failover to another one. This scenario has the lowest RPO and RTO but it’s the most expensive. However, it’s the right approach for large enterprises such as a multinational bank.
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