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CCNA Virtualization and Cloud Technologies Questions

30 questions · Virtualization and Cloud Technologies · All types, answers revealed

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1
MCQmedium

A small business wants to migrate its on-premises file server to the cloud to reduce hardware maintenance costs. They need low-latency access for local employees and want to avoid egress fees for large data transfers. Which cloud deployment model best meets these requirements?

A.Public cloud
B.Private cloud
C.Hybrid cloud
D.Community cloud
AnswerC

Hybrid cloud allows the business to keep frequently accessed data on-premises (private) for low latency and use public cloud for backup and scalability, reducing egress fees.

Why this answer

A hybrid cloud combines private and public cloud resources, allowing sensitive or frequently accessed data to remain on-premises (private cloud) while using public cloud for scalability and backup. This reduces latency for local users and minimizes egress fees for large data transfers. Public cloud alone would introduce latency and egress costs; community cloud is for shared organizations; private cloud alone doesn't leverage cloud scalability.

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2
MCQmedium

A technician needs to deploy a virtual machine for a client who requires a specific operating system that is not supported by the hypervisor's default settings. The technician has the ISO file for the OS. What should the technician do to install the OS on the VM?

A.Copy the ISO file directly to the virtual hard disk.
B.Mount the ISO file as a virtual CD/DVD drive and boot from it.
C.Use a USB flash drive with the ISO and plug it into the host.
D.Change the hypervisor's default settings to support the OS.
AnswerB

Mounting the ISO as a virtual optical drive allows the VM to boot from it and begin the OS installation process.

Why this answer

This question tests the process of installing an OS on a VM. The correct method is to mount the ISO file as a virtual optical drive and boot from it. Copying the ISO to the virtual disk or using a USB drive would not work directly, and the hypervisor's default settings are not relevant to OS compatibility.

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3
MCQeasy

A technician is tasked with deploying a new virtual machine for a client who needs to run a legacy application that requires a specific configuration. The client wants the VM to be isolated from the host operating system but still needs to access physical USB devices connected to the host. Which type of virtualization technology should the technician use?

A.Type 1 hypervisor
B.Type 2 hypervisor
C.Container-based virtualization
D.Desktop virtualization (VDI)
AnswerB

Type 2 hypervisors run on a host OS and natively support USB passthrough, allowing the VM to access physical USB devices while maintaining isolation from the host.

Why this answer

This question tests knowledge of virtualization types and their capabilities. Type 1 hypervisors run directly on hardware and provide strong isolation, but they lack direct USB passthrough in many configurations. Type 2 hypervisors, like VMware Workstation or VirtualBox, run on top of an OS and commonly support USB passthrough, making them suitable for this scenario.

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4
MCQeasy

A company uses a cloud-based SaaS application for customer relationship management (CRM). Several employees report that they cannot access the CRM this morning, but internet connectivity is working. The IT support team checks the cloud provider's status page and finds no reported outages. What should the technician check next?

A.Verify that the DNS server is resolving the CRM URL correctly.
B.Check if the users' accounts have expired or if passwords need to be reset.
C.Reboot the company's firewall to clear any temporary blocks.
D.Reinstall the CRM application on the affected workstations.
AnswerB

Expired passwords or locked accounts are common reasons for individual access failures to SaaS applications.

Why this answer

When a cloud service is accessible to some but not others, the issue is often local authentication or configuration. Expired credentials or browser cache problems are common causes. The cloud provider's status page shows no outage, so the issue is likely client-side.

DNS and firewall settings would affect all users if misconfigured.

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5
MCQhard

A company uses a private cloud for its internal applications. The IT team wants to ensure that if one physical host fails, the virtual machines running on it can be automatically restarted on another host with minimal downtime. Which feature should they implement?

A.Fault tolerance
B.High availability
C.Live migration
D.Snapshots
AnswerB

High availability monitors hosts and automatically restarts VMs on another host if a failure occurs, meeting the requirement of minimal downtime.

Why this answer

This question tests knowledge of high availability in virtualization. Fault tolerance keeps a VM running with zero downtime but requires more resources. Live migration moves VMs manually, and snapshots are for backup.

High availability automatically restarts VMs on another host after a failure, providing a balance of cost and uptime.

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6
MCQeasy

A small business uses a cloud-based accounting application. Several employees report that they can no longer access the application, and they receive a message stating that the service is temporarily unavailable. The business's internet connection is working, and other cloud services are accessible. What is the most likely cause of this issue?

A.The user's browser cache is corrupted.
B.The cloud service provider is experiencing an outage.
C.The business's firewall is blocking the accounting application.
D.The employees' user accounts have been disabled.
AnswerB

A provider-side outage would affect all users of that specific service, matching the symptoms of multiple employees unable to access only that application.

Why this answer

This scenario tests the understanding of cloud service models and common issues. The correct answer is B because the problem is isolated to a single cloud service, indicating a service outage on the provider's end, not a local network or client issue. The other options are less likely as the internet is working and other services are accessible.

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7
MCQeasy

A technician is deploying a new virtual machine on a Type 1 hypervisor. The VM will run a Linux web server and needs to be isolated from the corporate network except for HTTPS traffic. Which networking configuration should the technician implement?

A.Bridge the VM directly to the physical network adapter
B.Use a virtual switch set to host-only mode and configure port forwarding for HTTPS
C.Attach the VM to a NAT network without any port forwarding
D.Assign the VM an IP from the corporate DHCP scope
AnswerB

Host-only mode isolates the VM from the physical network, and port forwarding allows only HTTPS traffic from the host to the VM, meeting the security requirement.

Why this answer

A virtual switch with a host-only or internal network isolates the VM from the corporate LAN, while port forwarding or a NAT rule allows specific inbound HTTPS traffic. This ensures the VM is not directly exposed to the broader network. The question tests understanding of virtual networking and security isolation.

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8
MCQmedium

A technician needs to migrate a physical server running a legacy application to a virtual machine on a Type 2 hypervisor for testing. The application requires direct access to a PCIe USB controller card. Which of the following is the best approach to ensure the application continues to function?

A.Use a virtual USB controller and map it to the host's USB port
B.Install the application directly on the host and share the USB device via network
C.Enable PCI passthrough for the USB controller card to the VM
D.Convert the physical server to a VM using P2V and rely on emulated USB
AnswerC

PCI passthrough grants the VM exclusive access to the physical USB controller, meeting the application's requirement for direct hardware control.

Why this answer

PCI passthrough allows a VM to directly access a physical PCIe device, providing the low-level access required by the legacy application. Type 2 hypervisors often support this for compatible hardware. This tests knowledge of hardware pass-through in virtualization.

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9
MCQmedium

A technician is tasked with deploying a virtual machine for a new employee. The VM will run a Linux distribution and needs to be isolated from the corporate network but still have internet access for updates. Which network configuration should the technician choose for the VM?

A.Bridged networking
B.NAT (Network Address Translation)
C.Host-only networking
D.Internal networking
AnswerB

NAT provides internet access through the host while keeping the VM isolated from the corporate network.

Why this answer

NAT (Network Address Translation) allows the VM to access the internet using the host's IP address while keeping it separate from the host's local network. Bridged mode would give the VM its own IP on the corporate network, violating isolation. Host-only mode blocks internet access.

Internal network would also block internet access.

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10
MCQmedium

A user reports that their virtual machine running on a Type 2 hypervisor is extremely slow, especially during disk operations. The host machine has 16 GB of RAM and an SSD, but the VM is configured with 2 GB of RAM and a 100 GB dynamically expanding virtual hard disk. What is the most likely cause of the performance issue?

A.The VM has insufficient RAM allocated.
B.The host is running out of physical memory.
C.The virtual hard disk type is dynamically expanding.
D.The VM is using an older version of the virtualization software.
AnswerC

Dynamically expanding disks grow on demand, causing fragmentation and slower I/O compared to fixed-size disks.

Why this answer

Dynamically expanding virtual hard disks can cause performance degradation because they grow as data is written, leading to fragmentation and increased I/O overhead. Fixed-size virtual hard disks pre-allocate space, reducing fragmentation and improving disk performance. The RAM and CPU configuration are not directly related to the disk slowness described.

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11
MCQmedium

A user reports that their virtual machine running on a Type 2 hypervisor is extremely slow. The host machine has 16 GB of RAM, and the VM is configured with 8 GB. The host's task manager shows 90% memory usage. What should the technician do to improve the VM's performance?

A.Increase the number of virtual CPUs assigned to the VM.
B.Reduce the amount of RAM allocated to the VM to 4 GB.
C.Change the virtual disk from thin to thick provisioning.
D.Enable hyper-threading on the host CPU.
AnswerB

Reducing the VM's RAM frees up memory for the host, alleviating the memory pressure and improving overall performance.

Why this answer

This scenario tests resource allocation in virtualization. The host is running low on memory, causing the VM to be slow. Reducing the VM's RAM allocation will free up memory for the host and improve overall performance.

Increasing vCPUs or changing disk type won't address the memory bottleneck, and enabling hyper-threading is not a direct solution.

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12
MCQmedium

A technician is configuring a new virtual machine for a developer. The developer needs to run multiple isolated environments for testing, but the host machine has limited storage space. Which type of virtual disk configuration should the technician use to minimize storage usage while still allowing the VM to grow as needed?

A.Thick provisioning
B.Thin provisioning
C.Fixed-size disk
D.Dynamic disk
AnswerB

Thin provisioning allocates storage as needed, allowing the VM to grow while using only the space actually required, minimizing storage usage.

Why this answer

This question tests knowledge of virtual disk types. Thin provisioning allocates storage on demand, using only the space actually used by the VM, which is ideal for saving storage. Thick provisioning pre-allocates the full disk size, wasting space.

Dynamic disks are a Windows concept, not a VM disk type.

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13
MCQmedium

A company is moving its on-premises email server to a cloud-based service. The IT manager is concerned about data security and wants to ensure that the email data is encrypted both at rest and in transit. Which cloud service model is the company most likely using?

A.Infrastructure as a Service (IaaS)
B.Platform as a Service (PaaS)
C.Software as a Service (SaaS)
D.Desktop as a Service (DaaS)
AnswerC

SaaS provides a fully managed application, such as cloud-based email, where the provider handles security, including encryption at rest and in transit.

Why this answer

This question tests understanding of cloud service models. Email as a service is a common SaaS offering, where the provider manages the infrastructure, platform, and software. PaaS and IaaS would require the company to manage the email application itself, which is less likely for a simple migration.

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14
MCQeasy

A technician is configuring a cloud-based backup solution for a company's critical data. The company wants to ensure that if the primary cloud provider experiences an outage, the data remains accessible from another provider. Which concept should the technician implement?

A.High availability
B.Cloud federation
C.Load balancing
D.Disaster recovery plan
AnswerB

Cloud federation enables interoperability between different cloud providers, allowing data to be replicated and accessed across them.

Why this answer

Cloud federation allows different cloud providers to share resources and data, enabling failover and redundancy. This ensures data accessibility even if one provider goes down. High availability is a general concept, not specific to multi-provider redundancy.

Load balancing distributes traffic but does not guarantee data access during a provider outage. Disaster recovery is a broader plan, but federation is the specific technology for inter-provider failover.

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15
MCQhard

A user reports that their cloud-based virtual desktop (VDI) is disconnecting frequently. The user's internet connection is stable, and other cloud services work fine. The technician checks the VDI's resource usage and finds that the virtual machine's RAM is consistently at 95% usage. What should the technician do to resolve the disconnections?

A.Reduce the amount of RAM allocated to the VDI.
B.Increase the amount of RAM allocated to the VDI.
C.Reinstall the VDI client software on the user's device.
D.Enable GPU acceleration for the VDI.
AnswerB

Increasing RAM gives the VM more memory to work with, reducing the likelihood of unresponsiveness and disconnections.

Why this answer

This scenario tests advanced troubleshooting of VDI performance. High memory usage can cause the VM to become unresponsive, leading to disconnections. Increasing the VM's RAM allocation directly addresses the resource bottleneck.

Reducing RAM would worsen the problem, and network or GPU issues are not indicated.

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16
MCQmedium

A user reports that their cloud-synced files are not appearing on their laptop after a recent OS reinstall. The technician verifies that the cloud storage account is active and the internet connection works. Which of the following is the most likely reason for the missing files?

A.The cloud storage provider has deleted the files due to inactivity
B.The user's account is not licensed for the cloud service
C.The local sync client is configured for selective sync and not downloading all folders
D.The laptop's hard drive is full
AnswerC

After a reinstall, the sync client defaults to selective sync settings, which may exclude some folders from downloading to the laptop.

Why this answer

Cloud storage clients use a local cache to sync files. After an OS reinstall, the client must re-download files from the cloud, but if selective sync is enabled, only certain folders are synced. The user may need to adjust sync settings to restore all files.

This tests understanding of cloud storage synchronization behavior.

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17
MCQeasy

A user reports that their virtual desktop in a VDI environment is extremely slow during peak hours. The technician checks the host server and sees that memory utilization is at 95% and CPU is at 80%. Which of the following is the most likely cause of the performance issue?

A.The virtual switch is misconfigured
B.The host has insufficient memory for the number of VMs
C.The guest OS needs a driver update
D.The virtual hard disks are not thin-provisioned
AnswerB

With memory at 95%, the host is overcommitted, forcing the hypervisor to use disk swap, which drastically reduces performance. This is the most direct cause.

Why this answer

In a VDI environment, over-provisioning resources like memory leads to resource contention and poor performance. The high memory utilization indicates the host does not have enough physical memory to support all running virtual desktops, causing swapping and slowdowns. This scenario tests understanding of resource allocation in virtualized environments.

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18
MCQmedium

A technician needs to create a virtual machine that will host a legacy application requiring Windows XP. The host runs Windows 11. After creating the VM and installing Windows XP, the technician notices that the mouse cursor is lagging and the screen resolution is stuck at 800x600. What should the technician do to resolve this?

A.Increase the amount of RAM allocated to the VM.
B.Install the guest additions for the VM.
C.Update the host operating system to the latest version.
D.Change the VM's network adapter from NAT to bridged.
AnswerB

Guest additions install drivers that enable higher resolutions and smooth mouse integration.

Why this answer

Guest additions (or integration services) contain optimized drivers for the virtual hardware, including mouse and display drivers. Without them, the VM uses basic VGA drivers, limiting resolution and causing input lag. Updating the host OS or increasing RAM won't fix driver issues.

Changing the network adapter type is unrelated to display and input problems.

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19
MCQhard

A technician is tasked with migrating a physical server running a legacy OS that does not support virtualization drivers. The technician needs to ensure the OS can boot and run in a virtual machine. Which of the following steps is most critical before performing the physical-to-virtual (P2V) conversion?

A.Increase the physical server's RAM before conversion
B.Ensure the legacy OS has the latest service pack installed
C.Use a P2V tool that can inject the correct HAL and storage drivers for the hypervisor
D.Create a full backup of the physical server
AnswerC

Injecting drivers ensures the legacy OS can recognize the virtual hardware and boot successfully after conversion.

Why this answer

Legacy OSes often lack drivers for virtualized hardware, so using a P2V tool that can inject the necessary HAL and storage drivers during conversion is essential. Without this, the VM will likely blue screen on boot. This tests advanced knowledge of P2V migration challenges and driver injection.

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20
MCQeasy

A company is considering moving its email system from an on-premises Exchange server to a cloud-based solution. Which cloud service model would best fit this migration?

A.IaaS (Infrastructure as a Service)
B.PaaS (Platform as a Service)
C.SaaS (Software as a Service)
D.DaaS (Desktop as a Service)
AnswerC

SaaS delivers fully managed software applications, such as cloud-based email, eliminating the need for on-premises servers.

Why this answer

SaaS (Software as a Service) provides ready-to-use applications like email (e.g., Office 365, Gmail) without managing the underlying infrastructure. IaaS would require the company to still manage the email server software. PaaS is for application development, not end-user applications.

DaaS is for desktop virtualization.

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21
MCQmedium

A company uses a private cloud for its development environment. A developer complains that they cannot deploy a new application because the cloud management portal shows a 'resource quota exceeded' error. The technician checks the cluster and finds that CPU and memory usage are below 50%. What is the most likely cause of the error?

A.The hypervisor is in maintenance mode
B.The storage pool is full
C.The developer's resource allocation quota has been reached
D.The virtual switch is not configured for the developer's VLAN
AnswerC

Quotas limit how many resources a user can consume, regardless of total available capacity. The error indicates the developer hit their personal limit.

Why this answer

Resource quotas are administrative limits set per user or project, independent of actual cluster utilization. Even with plenty of free resources, a quota can block deployment. This tests understanding of cloud resource management and the difference between quotas and capacity.

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22
MCQhard

A user complains that their virtual machine, which was working fine yesterday, now displays a 'Blue Screen of Death' (BSOD) on startup. The VM is running Windows 10 and is stored on a shared network drive. The host machine is a Windows Server with plenty of resources. What is the most likely cause of this issue?

A.The host machine ran out of memory while the VM was running.
B.The virtual hard disk file became corrupted due to a network error during the last write operation.
C.The VM's guest additions need to be updated.
D.The hypervisor version is incompatible with the VM configuration.
AnswerB

Network storage is vulnerable to corruption if the connection drops during a write, leading to a BSOD on boot.

Why this answer

A BSOD on VM startup often indicates a corrupted system file or disk issue. Since the VM is stored on a network drive, a network interruption during the last shutdown could have corrupted the virtual hard disk. Insufficient host resources or an outdated hypervisor would typically cause performance issues or failure to start, not a BSOD.

Guest additions issues might cause driver problems but are less likely to cause a BSOD on boot.

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23
MCQeasy

A small business wants to migrate its on-premises file server to a cloud service to reduce hardware maintenance costs. The data must be accessible from any device with an internet connection and should support real-time collaboration. Which cloud service model best meets these requirements?

A.Infrastructure as a Service (IaaS)
B.Platform as a Service (PaaS)
C.Software as a Service (SaaS)
D.Desktop as a Service (DaaS)
AnswerC

SaaS delivers fully managed applications like cloud file storage and collaboration suites, meeting the need for accessibility and real-time collaboration without hardware management.

Why this answer

SaaS provides ready-to-use software applications over the internet, such as Google Workspace or Microsoft 365, which include file storage and collaboration features. This eliminates the need for the business to manage underlying infrastructure. The scenario tests knowledge of cloud service models: SaaS, PaaS, and IaaS.

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24
MCQeasy

A user reports that their virtual machine, which is used for testing software, suddenly lost network connectivity. The host machine is connected to the internet and can browse websites. The VM is configured with a bridged network adapter. What is the most likely cause of this issue?

A.The host's firewall is blocking the VM's network traffic.
B.The VM's DHCP lease has expired and it failed to obtain a new IP address.
C.The virtual switch on the host has been disabled.
D.The VM's operating system is corrupted.
AnswerB

Bridged networking relies on DHCP; an expired lease without renewal causes loss of network access.

Why this answer

In bridged mode, the VM gets its own IP address from the network's DHCP server. If the DHCP lease expired and the VM cannot renew it, connectivity is lost. The host's connection is fine, so the issue is specific to the VM's network configuration.

A misconfigured firewall on the host would affect all VMs, not just one. The virtual switch is part of the hypervisor and unlikely to fail without affecting other VMs.

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25
MCQhard

A company's cloud-based CRM application is experiencing intermittent outages. The IT team suspects a distributed denial-of-service (DDoS) attack. Which cloud characteristic is most directly impacted by such an attack?

A.On-demand self-service
B.Broad network access
C.Availability
D.Resource pooling
AnswerC

Availability ensures that cloud services are accessible when needed. A DDoS attack specifically aims to deny availability by overwhelming the service.

Why this answer

A DDoS attack floods the service with traffic, making it unavailable to legitimate users, directly impacting availability. Cloud services rely on high availability, but an attack can overwhelm resources. This tests understanding of the five essential characteristics of cloud computing (on-demand self-service, broad network access, resource pooling, rapid elasticity, measured service) and the CIA triad.

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26
MCQmedium

A technician is troubleshooting a VM that fails to boot with the error 'Operating system not found'. The VM was working yesterday. The technician checks the virtual machine settings and sees that the virtual hard disk is attached to the IDE controller. What should the technician do first?

A.Reattach the virtual hard disk to the SCSI controller
B.Check the VM's boot order in the BIOS and ensure the virtual hard disk is first
C.Increase the VM's memory allocation
D.Restore the VM from a recent snapshot
AnswerB

The boot order may have been changed accidentally, causing the VM to try booting from another device that has no OS.

Why this answer

The boot order in the VM's BIOS might be set to boot from a different device (e.g., network or CD-ROM) before the hard disk. Changing the boot order to prioritize the virtual hard disk is the most direct fix. This tests knowledge of VM boot configuration and BIOS settings.

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27
MCQhard

A technician is configuring a hybrid cloud environment where an on-premises application needs to securely access a database hosted in a public cloud. The company requires that all traffic between the two environments be encrypted and not traverse the public internet. Which of the following should the technician implement?

A.Configure a site-to-site VPN over the internet
B.Use a dedicated private connection such as AWS Direct Connect
C.Set up a remote desktop gateway
D.Deploy a cloud-based load balancer
AnswerB

A dedicated private connection provides a direct, private link between on-premises and the cloud, bypassing the public internet and ensuring encryption.

Why this answer

A VPN tunnel creates an encrypted connection over the internet, but to avoid the public internet entirely, a dedicated private connection like AWS Direct Connect or Azure ExpressRoute is needed. However, the question specifies 'not traverse the public internet', so a VPN over the internet would not qualify. The correct answer is a dedicated private connection, which is a service offered by cloud providers.

This tests knowledge of hybrid cloud connectivity options.

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28
MCQhard

A technician is investigating a security incident where a user's virtual machine was compromised. The technician suspects that the VM was infected with malware that spread from the host. Which virtualization security best practice would have prevented this?

A.Enable snapshots for all VMs.
B.Use a Type 2 hypervisor for better isolation.
C.Keep the hypervisor and host OS updated with security patches.
D.Assign more virtual CPUs to the VM.
AnswerC

Regular updates patch vulnerabilities that could be exploited for VM escape, preventing malware from spreading between host and VM.

Why this answer

This question tests understanding of VM isolation and security. VM escape attacks allow malware to break out of a VM and infect the host. Using a Type 1 hypervisor reduces the attack surface, but the best prevention is to ensure proper isolation and keep the hypervisor updated.

However, the question implies the infection spread from host to VM, which is the opposite; the correct answer focuses on preventing cross-VM infection. The most direct prevention is to use separate virtual switches and network segmentation, which is not listed. Among the options, keeping the hypervisor updated is the best general practice to prevent VM escape vulnerabilities.

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29
MCQhard

A technician is setting up a virtual machine for a software developer who needs to test an application on multiple operating systems. The host runs Windows 10 Pro with 32 GB of RAM and a quad-core CPU. The developer wants the VM to have direct access to a USB security dongle. Which configuration step is essential to meet this requirement?

A.Configure the VM to use dynamic memory.
B.Enable virtualization extensions (VT-x/AMD-V) in the host BIOS.
C.Install the guest additions or integration services in the VM.
D.Enable USB controller passthrough in the VM settings.
AnswerD

USB passthrough allows the VM to directly control the USB device, which is required for a security dongle.

Why this answer

USB passthrough allows the VM to access a physical USB device directly, bypassing the host OS. This is essential for security dongles that require low-level access. Enabling virtualization extensions in BIOS is important for performance but not for USB access.

Dynamic memory and a fixed-size VHD are unrelated to USB device connectivity.

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30
MCQmedium

A company uses a cloud-based file storage service. An employee reports that when they try to upload a large video file, the upload fails after several minutes of progress. The employee's internet connection is stable and other uploads of smaller files work fine. What is the most likely cause of this issue?

A.The employee's computer has insufficient RAM.
B.The cloud service's server is temporarily overloaded.
C.The file exceeds the maximum upload size allowed by the service.
D.The employee's account has been suspended.
AnswerC

Cloud storage services often impose file size limits, and exceeding that limit would cause the upload to fail, often after some progress.

Why this answer

This scenario tests troubleshooting cloud storage issues. The correct answer is C because many cloud services have file size limits, and a large video file may exceed that limit. The other options are less likely given that other uploads work and the connection is stable.

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