1. Which of the following deployment models involves sharing a single instance of a software application across multiple customers or tenants? A. Private cloud B. Public cloud C. Community cloud D. Multi-tenant cloud Answer: D. Multi-tenant cloud Explanation: In a multi-tenant cloud, a single instance of a software application serves multiple customers or tenants, optimizing resource utilization and cost-effectiveness. 2. Which service model allows users to run their applications on a cloud provider's infrastructure, with the provider managing the underlying hardware and software? A. Infrastructure as a Service (IaaS) B. Platform as a Service (PaaS) C. Software as a Service (SaaS) D. Function as a Service (FaaS) Answer: A. Infrastructure as a Servi