Which two virtualization technologies are used in a modern data center design? (Choose two.)
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Virtualization is a technology that enables multiple virtual instances of operating systems, applications, or hardware to run on a single physical server or storage device. This allows for more efficient use of resources and greater flexibility in managing data center infrastructure.
The two virtualization technologies commonly used in modern data center designs are server virtualization and storage virtualization.
Server virtualization: Server virtualization enables multiple virtual instances of operating systems and applications to run on a single physical server. Each virtual instance, called a virtual machine (VM), has its own operating system, applications, and resources, including CPU, memory, and storage. The virtualization software, such as VMware or Microsoft Hyper-V, manages the resources and ensures that each VM operates independently of the others. Server virtualization can improve server utilization, reduce hardware costs, simplify server management, and provide high availability and disaster recovery capabilities.
Storage virtualization: Storage virtualization enables multiple storage devices to be pooled together and presented as a single logical storage device. This allows for more efficient use of storage capacity and better performance by balancing the workload across multiple physical devices. Storage virtualization can also simplify storage management and provide features such as data migration, replication, and snapshotting.
Cloud virtualization, platform virtualization, and application virtualization are not typically considered core virtualization technologies in a modern data center design.
Cloud virtualization: Cloud virtualization is the use of virtualization technologies to create a cloud infrastructure that enables on-demand access to shared computing resources, such as servers, storage, and applications, over the internet. While virtualization is a key technology underlying cloud computing, it is not a specific type of virtualization used in data center design.
Platform virtualization: Platform virtualization, also known as operating system virtualization, enables multiple virtual instances of operating systems to run on a single physical server. While this can be useful in certain scenarios, such as running legacy applications on newer hardware, it is not commonly used in modern data center designs.
Application virtualization: Application virtualization enables applications to run on a host operating system without being installed directly on the host. This can provide greater flexibility in managing applications, but it is not typically considered a core virtualization technology in a modern data center design.
In summary, server virtualization and storage virtualization are the two virtualization technologies commonly used in modern data center designs.