Which of the following tasks related to Amazon EC2 instances are the customer’s responsibility? (Choose two.)

The shared responsibility model dictates what AWS manages and what the customer manages. AWS is responsible for security of the cloud, while the customer is responsible for security in the cloud. Patching the guest operating system on the instance is a customer responsibility because the guest OS runs in the cloud, on top of AWS's infrastructure. Similarly, encrypting data at rest on the instance's associated storage is a customer responsibility as it involves the data and its configuration in the cloud. Installing and patching hypervisor software, installing physical servers and networking cabling, and providing physical security for EC2 hosts are all responsibilities of AWS. These tasks relate to the underlying infrastructure of the cloud, which AWS manages.