CLOUD COMPUTING FLIP CLASS

What does virtualization allow a single computer to do?

• Run multiple virtual machines as if they were separate computers

• Turn into a supercomputer

• Only run one operating system at a time

• Replace the need for hardware entirely

Which of the following is an open-source hypervisor used in cloud environments?

• VMware vSphere

• Microsoft Hyper-V

• Xen

• Parallels Desktop

Which mode in modern processors is used for critical system operations?

• User Mode

• Supervisor Mode

• Virtual Mode

• Application Mode

What is the purpose of Intel VT-x and AMD-V in CPU virtualization?

• To slow down virtual machine performance

• To introduce a special Ring -1 mode for hypervisors

• To remove the need for a hypervisor

• To run guest OS in Ring -2

What is the main purpose of Intel VT-x in CPU virtualization?

• To slow down VM switching

• To remove the need for a hypervisor

• To provide a special mode for efficient VM management

• To make virtualization impossible on x86 CPUs

What is the primary purpose of Intel's Extended Page Tables (EPT) in memory virtualization?

• To eliminate the need for page tables entirely

• To slow down memory access for security reasons

• To replace the need for a hypervisor

• To improve memory virtualization by reducing reliance on shadow page tables

Which I/O virtualization method provides the fastest performance but is the most complex?

• Direct I/O Access

• Para-Virtualization

• Cloud-Based Virtualization

• Full Device Emulation

What is a key challenge in virtualizing multi-core processors?

• Incompatibility with hypervisors

• Single-threaded execution limitations

• Parallelization and task assignment

• Lack of processor cores

What is the primary benefit of using virtual clusters in many-core processors?

• Reducing power consumption

• Increasing the number of processor cores

• Eliminating the need for memory management

• Faster data access and workload isolation

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• CHIRAG

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