Explanation
A per core licensing model is based on the number of processor cores in a server. This model is suitable for a data center that has a variable daily equipment count, as it allows for scaling up or down the number of cores as needed. A per core licensing model also provides better performance and efficiency than other models.
Verified References: [Per Core Licensing and Basic Definitions]

Explanation
Push notifications are messages that are sent from an application or a service to a user's device without requiring the user to open or request them. They can be used as a cost-effective technique for implementing MFA (Multi-Factor Authentication) on servers by sending verification codes or approval requests to the user's smartphone or tablet when they try to log in to the server. Verified References: [Push notifications], [MFA]

Explanation
The action that the server administrator should take once a new backup scheme has been configured is to run a restore test. A restore test is a process of verifying that the backup data can be successfully recovered and restored to its original location or a different location. A restore test can help ensure that the backup scheme is working properly, that the backup data is valid and consistent, and that there are no errors or issues during the recovery process. A restore test should be performed periodically and after any changes to the backup configuration or environment.

Explanation
The type of data replication that is required for a hot-site disaster recovery model is constant. A hot site is a type of disaster recovery site that has fully operational IT infrastructure and equipment that can take over the primary site's functions immediately in case of a disaster or disruption. A hot site requires constant data replication between the primary site and the hot site to ensure that the data is up-to-date and consistent.
Constant data replication means that any changes made to the data at the primary site are immediately copied to the hot site without any delay or lag.

Explanation
A template is a preconfigured virtual machine image that can be used to create new virtual machines quickly and easily. A template can include the operating system, applications, settings, and data that are required for a specific purpose or role. A type 1 hypervisor is a virtualization technology that runs directly on bare metal hardware, without requiring an underlying operating system. A type 1 hypervisor can provide better performance, security, and isolation for virtual machines than a type 2 hypervisor, which runs on top of an operating system. Verified References: [Template], [Type 1 hypervisor]