Cisco Certified Network Professional Enterprise CCNP Enterprise · Free Practice Question Medium
Question 29
Which of the following best describes a key benefit of using virtual machines (VMs) in a network infrastructure?
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A
VMs provide hardware-level network segmentation, preventing inter-VM communication.
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B
VMs eliminate the need for hypervisors by running directly on physical hardware.
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C
VMs require dedicated physical network interfaces for each virtual instance to ensure proper functionality.
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D
VMs allow multiple operating systems to run on a single physical server, optimizing resource utilization.
Reveal correct answer
Correct answer: D
Explanation
Virtual machines enable multiple OS instances to operate independently on a single physical server, maximizing hardware efficiency and reducing costs. This is achieved through a hypervisor, which abstracts hardware resources and allocates them dynamically to VMs. Contrary to one option, VMs do not provide hardware-level segmentation; instead, network segmentation is achieved through VLANs or virtual switches. Another incorrect option states that VMs run without a hypervisor, which is false since hypervisors (e.g., VMware ESXi, Microsoft Hyper-V) are essential for virtualization. Additionally, VMs can share network interfaces through virtual NICs, eliminating the requirement for dedicated physical network interfaces per VM.
Discussion
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