Explain Hypervisors and Virtual Machines POWEREDGE-FOUNDATIONS-V2 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   How does a hypervisor provide isolation between virtual machines?

   • ABy encrypting all data within each VM
   • BBy placing each VM on a separate physical server
   • CBy giving each VM its own virtual hardware and memory space, preventing direct access to other VMs
   • DBy using a firewall between VMs on the same host
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A security team is investigating a potential VM escape vulnerability in a KVM-based environment on Dell PowerEdge R750 servers. The team wants to minimize the risk of a compromised VM accessing the hypervisor or other VMs. Which of the following actions is the most effective mitigation?

   • AApply the latest security patches to the KVM hypervisor and the host OS.
   • BDisable memory overcommitment on the host.
   • CPlace each VM on a separate physical host.
   • DUse a Type 2 hypervisor instead of KVM.
   Reveal Solution Discussion Select an answer first
4. 3expert · hard

   A small business runs a Dell PowerEdge T350 server with Windows Server 2019 as the host OS. The business wants to run a few VMs for testing, but the server also runs a line-of-business application that must remain on the host OS. The business is concerned about the performance overhead of virtualization and wants the best performance for the VMs. Which hypervisor approach should the business choose?

   • AInstall VMware Workstation on Windows Server and run the VMs inside it.
   • BInstall ESXi on the server and run the line-of-business application in a VM.
   • CEnable the Hyper-V role on Windows Server and run the VMs under Hyper-V.
   • DUse VirtualBox on Windows Server for the VMs.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   What is a security implication of virtualization that administrators must consider?

   • AVirtual machines cannot be isolated from each other
   • BA compromise of the hypervisor could affect multiple VMs on the same host
   • CVirtualization eliminates the need for operating system updates
   • DEach VM requires its own physical firewall to be secure
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   An administrator is designing a virtualized environment on a Dell PowerEdge R750 with 128 GB of RAM and 16 physical cores. The administrator plans to run 10 VMs, each with 4 vCPUs and 16 GB of RAM. The administrator knows that the VMs will have varying workloads, and some will be idle at times. The administrator wants to maximize resource utilization while ensuring that no VM is starved of resources. What should the administrator do?

   • AAssign each VM a fixed number of physical cores.
   • BDisable overcommitment and allocate resources based on peak usage.
   • CUse a Type 2 hypervisor to reduce overhead.
   • DEnable CPU and memory overcommitment, and set appropriate shares for each VM.
   Reveal Solution Discussion Select an answer first