CLF-C02 practice questions: Cloud Concepts

Answer: B. Task Statement 1.4 asks about the role of fixed costs compared with variable costs. 'Six advantages of cloud computing' opens with 'Trade fixed expense for variable expense - Instead of having to invest heavily in data centers and servers before you know how you're going to use them, you can pay only when you consume computing resources, and pay only for how much you consume.' Each distractor keeps the idea of a commitment or a fixed monthly figure, which is the shape of on-premises spending rather than the shape AWS describes. Source: AWS CLF-C02 Exam Guide - Domain 1: Cloud Concepts

Answer: A. Task Statement 1.4 covers the cost savings of moving to the cloud, and a managed service is where much of that saving comes from. The Amazon RDS user guide states that 'Amazon RDS manages backups, software patching, automatic failure detection, and recovery', and its table comparing on-premises, Amazon EC2 and Amazon RDS management moves the server-level rows into the AWS column only for Amazon RDS. Application optimization stays with the customer in all three columns. AWS Systems Manager Patch Manager and AWS Backup each take one of the three chores in the scene, and neither takes the others. Source: AWS CLF-C02 Exam Guide - Domain 1: Cloud Concepts

Answer: C. Task Statement 1.3 covers cloud adoption strategies. The whitepaper 'An Overview of the AWS Cloud Adoption Framework', page 'Foundational capabilities', defines the People perspective as the one that 'serves as a bridge between technology and business, accelerating the cloud journey to help organizations more rapidly evolve to a culture of continuous growth, learning, and where change becomes business-as-normal, with focus on culture, organizational structure, leadership, and workforce.' The same page defines the Operations perspective as making sure 'your cloud services are delivered at a level that meets the needs of your business', which is the distinction being tested. Source: AWS CLF-C02 Exam Guide - Domain 1: Cloud Concepts

Answer: D. Task Statement 1.2 covers the pillars of the Well-Architected Framework. The framework's operational excellence page 'Design principles' lists 'Make frequent, small, reversible changes: Design workloads that are scalable and loosely coupled to permit components to be updated regularly. Automated deployment techniques together with smaller, incremental changes reduces the blast radius and allows for faster reversal when failures occur.' The reliability pillar's design principles are 'Automatically recover from failure', 'Test recovery procedures', 'Scale horizontally to increase aggregate workload availability', 'Stop guessing capacity' and 'Manage change through automation', whose text is that 'Changes to your infrastructure should be made using automation' - nothing about the size of each change. Source: https://docs.aws.amazon.com/wellarchitected/latest/framework/oe-design-principles.html

Answer: D. Task Statement 1.3 covers the resources that support the migration journey. The VM Import/Export user guide states: 'VM Import/Export enables you to import virtual machine (VM) images from your existing virtualization environment to Amazon EC2, and then export them back.' Among its features it lists 'The ability to import a VM from your virtualization environment to Amazon EC2 as an Amazon Machine Image (AMI). You can launch EC2 instances from your AMI any time', and its supported image formats include 'Open Virtual Appliance (OVA) image format'. AWS Transform MGN, by contrast, 'performs continuous block-level replication of your source servers and converts them for launch on AWS', and AWS Elastic Disaster Recovery is set up 'on your source servers to initiate secure data replication'. Amazon Elastic VMware Service lets you 'deploy and run a VMware Cloud Foundation (VCF) environment directly on EC2 bare metal instances within Amazon Virtual Private Cloud (VPC)', which keeps workloads as VMware VMs rather than AMIs. Source: https://docs.aws.amazon.com/vm-import/latest/userguide/what-is-vmimport.html Source: https://docs.aws.amazon.com/vm-import/latest/userguide/what-is-vmimport.html