18 Questions
What is virtualization?
Virtualization refers to the abstraction of the physical hardware from the operating system.
How are multiple virtual machines (VM) realized in virtualization?
Multiple virtual machines with their own virtual hardware components are isolated from each other on one real physical PC.
Which types of hardware and software can be used for virtualization solutions?
Various types of hardware and software can be used depending on the application area.
What is the significance of VMware vSphere for production plants?
VMware vSphere has been exclusively approved for use with SIMATIC PCS 7 in production plants.
Which PCS 7 systems can be virtualized?
PCS 7 systems marked with 'VM' can be virtualized.
What is the main purpose of a hypervisor in virtualization?
The hypervisor is installed in a real PC to enable the realization of multiple virtual machines (VM) with their own virtual hardware components.
What are the two different types of virtualization discussed in the text?
Server-based virtualization (Type 1: Native) and Client-based virtualization (Type 2: Hosted)
What is the hypervisor's role in virtualization?
The hypervisor is the virtualization layer on top of which the VMs run. It manages resource allocation of real hardware and the execution of VMs.
What distinguishes Server-based virtualization (Type 1: Native) from Client-based virtualization (Type 2: Hosted)?
Server-based virtualization runs directly on the hardware of the host, is more efficient, and requires fewer resources. Client-based virtualization operates through a remote client.
What are the tasks of the hypervisor in virtualization?
The hypervisor manages resource allocation of real hardware on VMs and the execution of VMs.
Why does Server-based virtualization (Type 1: Native) require all the drivers?
Server-based virtualization runs directly on the hardware of the host, hence it must provide all the drivers.
In what areas of application can Server-based virtualization (Type 1: Native) be used?
Server-based virtualization can be used in data centers, production plants, presentations, and short tests.
What are the main characteristics of client-based virtualization (Type 2: Hosted)?
The hypervisor is based on a full-fledged operating system, VMs are operated directly from the PC via video card and monitor, and main application areas include presentations and short tests.
How does server-based virtualization (Type 1 Native) differ from client-based virtualization (Type 2 Hosted)?
Server-based virtualization runs directly on the hardware of the host, is more efficient, requires fewer resources, and the VMs are operated via remote client.
Explain the role of the hypervisor in client-based virtualization.
The hypervisor in client-based virtualization is based on a full-fledged operating system, such as Windows, and uses the device drivers of the operating system.
What are the main advantages of server-based virtualization over client-based virtualization?
Server-based virtualization is more efficient, requires fewer resources, and runs directly on the hardware of the host.
In which scenarios would client-based virtualization be most suitable?
Client-based virtualization is most suitable for presentations and short tests.
What is the key difference in how VMs are operated in server-based virtualization compared to client-based virtualization?
In server-based virtualization, the VMs are operated via remote client, while in client-based virtualization, they are operated directly from the PC via video card and monitor.
Learn about virtualization in computers and the tasks performed by the hypervisor, including resource allocation and VM management. Discover the role of the hypervisor as the virtualization layer for running VMs independently.
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