Hiring a Cloud Engineer? Questions to Ask and What You Should Hear AWS Startups Blog

Reserved instances, on the other hand, allow you to specify attributes such as instance type, platform, tenancy, region, and availability zone. Reserved instances offer significant reductions and capacity reservations when instances in certain availability zones are used. When you use on-demand instances, you must pay for computing resources without making long-term obligations. No, standby instances are launched in different availability zones than the primary, resulting in physically separate infrastructures.

  • One way would be to describe how you identified a problem and came up with a solution.
  • For example, creating and using subnets can help reduce congestion by making sure that the traffic destined for a subnet stays in that subnet.
  • In rolling deployment, the new version is released to a small portion of the infrastructure, whereas in the canary deployment, the new version is released to a small subset of users rather than infrastructure.
  • In the spirit of doing that, here are some AWS interview questions and answers that will help you with the interview process.

By asking about horizontal and vertical scaling, they’re testing your knowledge of these key concepts and your ability to apply them in real-world scenarios. This question is asked to evaluate your technical understanding of AWS and its features, particularly auto-scaling. Auto-scaling is a key aspect of cloud computing that allows businesses to optimize resource usage and minimize costs. Demonstrating your knowledge of this concept and https://remotemode.net/become-an-aws-cloud-engineer/ explaining its benefits showcases your expertise in AWS and your ability to leverage its tools to create efficient and cost-effective cloud environments. One notable project involved deploying a multi-tier web application with load balancing and auto-scaling features. Using CloudFormation, I created templates that defined all necessary resources, such as EC2 instances, RDS databases, Elastic Load Balancers, and Auto Scaling Groups.

. What are an Instance Store Volume and an EBS Volume?

Proper coordination between all the stakeholders and cloud engineers collectively can help to reduce cloud costs. Cloud computing differs from the typical data center as it uses remote servers connected to the internet to store, process, and manage data, whereas traditional data centers employ physical servers. Cloud computing offers scalability, flexibility, and cost savings, whereas traditional data centers may demand a big initial investment and continuous maintenance expenses.

RTO or Recovery Time Objective is the maximum time your business or organization is willing to wait for a recovery to complete in the wake of an outage. On the other hand, RPO or Recovery Point Objective is the maximum amount of data loss your company is willing to accept as measured in time. Regional edge caches, on the other hand, are an intermediate caching layer between CloudFront’s edge locations and your origin servers. They help reduce the load on your origin by caching more popular objects at these mid-tier caches, further enhancing the performance of content delivery. For monitoring and auditing purposes, I leverage AWS CloudTrail to track API calls and log events within the environment. Furthermore, I regularly review AWS Config rules to verify that our infrastructure complies with internal policies and industry standards.

#1: What risks are associated with working with an external cloud provider?

First, they need to use a CI/CD workflow to create their own platform-related code. Second, they must be CI/CD workflow experts to build and grow a platform that can meet developers’ workflow needs. A platform engineer is responsible for developing, deploying, maintaining and troubleshooting the IDPs that developers need. Platform engineers alleviate the need for development teams to take on those platform responsibilities. Developers can instead focus on projects, completing them faster and with more consistency than development teams that oversee their own tools and platforms.

Route tables and network access control lists (ACLs) can set the routing rules for a Virtual Private Cloud (VPC) when implementing routing. Network ACLs, on the other hand, offer granular control over traffic flow, as they can allow or deny traffic based on the source and destination IP addresses, ports, and protocols. Overall, a combination of these strategies can significantly enhance the security of cloud infrastructure. Also, it is essential to set resource quotas for each tenant to prevent one tenant from using too many resources and impacting the performance of other tenants’ applications. K21Academy offers a guide for preparing for AWS interview questions, where learners can practice and test their knowledge before the actual interview.