CompTIA A+ 4.2 Core 1 – Client-Side Virtualization

A+ OBJECTIVE 4.2 VIRTUALIZATION AND CLOUD COMPUTING – CLIENT SIDE

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What is the purpose of network configurations for virtual machines?

To reduce memory usage

To increase storage capacity

To optimize internet browsing speed

To ensure proper communication between virtual machines and external networks

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What can be achieved by creating snapshots of VM configurations?

Faster internet speed

Reduced CPU usage

Easy restoration of VM configurations

Enhanced graphics performance

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What is a concern related to security in virtualized environments?

Security vulnerabilities leading to VM escaping

Incompatibility with different operating systems

Overheating of physical hardware components

Risk of data loss due to power outages

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Which statement about virtual machines’ storage space is accurate?

Virtual machines do not require any storage space

Virtual machines need minimal storage space for installation only

Virtual machines need sufficient storage space for installation and data

Virtual machines require more storage space than physical computers

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What is an advantage of virtualization for application development?

Isolated testing environments

Reduced electricity consumption

Enhanced gaming performance

Improved file management

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What resource is essential for virtualization to run multiple operating systems?

High-speed internet connection

Sufficient RAM

Large monitor size

Sufficient cooling system

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Which CPUs have built-in virtualization technology?

AMD CPUs with AMD-V

Intel CPUs with VirtualTech (VT)

Neither Intel nor AMD CPUs have virtualization technology

Both Intel and AMD CPUs with Intel-V and AMD-V

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What is the role of a hypervisor in virtualization?

It manages the system cooling mechanisms

It allocates memory and storage for each virtual machine

It updates the virtual machine operating systems

It controls the physical networking of the computer

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What is virtualization?

Running a single operating system on one physical computer

Running a single operating system on multiple physical computers

Running multiple operating systems on separate physical computers

Running multiple operating systems on one physical computer

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What does having a different IP address for each virtual machine in a bridged network configuration allow?

Unique access for other devices on the network to each VM

Access to the private IP address of the physical host

Direct access to the hypervisor for every VM

Use of a public address for each VM

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What is the purpose of using network address translation in a shared network address configuration?

To enable communication using the physical host's IP address

To prevent communication outside of the local virtualized environment

To allow direct communication between VMs on different hypervisors

To provide each VM with its own unique IP address

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How can every single virtual machine’s network configuration be determined on the hypervisor?

By assigning a public IP address to each VM

By configuring a shared network address for all VMs

By using private IP addresses for all VMs

By assigning unique IP addresses and determining communication rules

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Why might attackers encourage users to download and use rogue VMs from third-party sources?

'Rogue' VMs are typically free of malware

'Rogue' sounds appealing and trustworthy

Because rogue VMs are more stable and reliable

'Rogue' VMs may contain malware

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What does configuring a private address for a VM entail?

Receiving an address on the network

No communication outside of the local virtualized environment

Obtaining an IP address from the network

Performing network address translation for communication

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What networking configuration would provide each VM with its own IP address, similar to any physical device connected to the network?

Bridged network address

Shared network address

Public address

Private address

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What is the purpose of configuring a shared network address for a virtual machine?

To ensure each VM has its own IP address

To enable direct access to the hypervisor

To allow the VM to use the physical host's IP address

To prevent communication outside the virtual network

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Why is it advisable to build your own virtual machines instead of downloading and using VMs from a third-party source?

Third-party VMs have better performance

Third-party VMs may contain malware

Third-party VMs are more expensive

Building your own VMs is a faster process

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What is recommended to keep an operating system secure when running as a virtual machine?

Downloading and using rogue VMs from third-party sources

Using only pre-installed virtual machines

Not using antivirus software

Installing host-based firewall

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Why is it an obvious concern if you’re using hosted services for your virtual machines?

Lack of antivirus software running on the operating systems

Because hosted services are more vulnerable to malware attacks

Potential risk of VM escape and access to data from different customers

Due to the lack of security controls in a virtual environment

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What is the term for when malware gains access to the hypervisor and then can move to other virtualized systems?

Virtual machine hopping

Hypervisor breach

Malware virtualization

VM escape

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What is the main benefit of virtualization technology?

Running the latest operating system on a desktop

Hosting legacy software on an older operating system

Running virtual machines on a standalone server

Running multiple operating systems simultaneously on a single device

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How does virtualization technology make it appear to individual operating systems?

As if each OS has its own dedicated hardware

As if each OS has its own CPU, memory, and storage

As if each OS is running on a physical separate device

As if each OS is connected to a separate network

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Where is one common place virtualization technology is deployed?

Home desktops and personal laptops

Gaming consoles and entertainment systems

Smartphones and tablets

Data centers and enterprise environments

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