Sandboxing vs Virtualization: What's the Difference in App Development Quiz and Flashcards

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Questions and Answers

What is a key benefit of virtualization technology mentioned in the text?

Using different CPUs for each operating system

Having each operating system believe it has exclusive hardware resources (correct)

Running only one operating system at a time

Running virtual machines on separate physical servers

Where can some virtualization software run according to the text?

On IBM mainframes

Exclusively on macOS desktops

On a standalone server (correct)

Only in the cloud

What is an example of using virtualization for running legacy software mentioned in the text?

Using separate CPUs for each operating system

Running the latest operating system on a desktop

Running Windows 10 and Windows 11 on separate virtual machines (correct)

Running macOS and Windows 11 simultaneously

Where is virtualization technology not new according to the text?

IBM mainframes in the '60s Signup and view all the answers

What is the recommended approach when it comes to virtual machines?

Building your own rather than using VMs from third-party sources Signup and view all the answers

What does a shared network address do for a virtual machine?

Gives it the same IP address as the physical host Signup and view all the answers

How does a bridged network address differ from a shared network address?

It provides a unique IP address for each VM Signup and view all the answers

What happens when you configure a private address for a virtual machine?

Remains isolated within the local virtualized environment Signup and view all the answers

How does obtaining an IP address for a virtual machine in a bridged network setting compare to a physical device?

Virtual machines receive unique IPs, just like physical devices on the network Signup and view all the answers

What is a reason given in the text for avoiding using third-party virtual machines?

They may contain malware Signup and view all the answers

What is a hypervisor in the context of virtualization?

A software that manages memory, storage, CPU, and networking between virtual machines Signup and view all the answers

What role does a hypervisor play in running multiple operating systems on a single desktop?

It allows for seamless movement between different operating systems without rebooting Signup and view all the answers

Which feature of CPUs is utilized by hypervisor software?

Hardware-based virtualization technology Signup and view all the answers

What is a common requirement for CPUs to be compatible with hypervisor software?

Hardware-based virtualization support Signup and view all the answers

How does virtualization help in running different operating systems on a single desktop?

By allowing operating systems to share the same hardware resources Signup and view all the answers

Which component manages memory, storage, and CPU resources across different virtual machines?

Hypervisor Signup and view all the answers

Why is having sufficient RAM important when planning to run multiple virtual machines?

To accommodate the memory requirements of each operating system Signup and view all the answers

Which technology in Intel CPUs is crucial for enabling efficient virtualization?

'Virtualization Technology' (VT) Signup and view all the answers

What is one advantage of using a hypervisor to run multiple operating systems compared to separate physical devices?

Reduced cost and space requirements Signup and view all the answers

What is the primary purpose of a hypervisor software in the context of virtualization?

To manage resources and communication between different virtual machines Signup and view all the answers

How does a hypervisor help in utilizing a single desktop for multiple operating systems?

By enabling seamless navigation between different OSs without rebooting Signup and view all the answers

What role does the hypervisor play in ensuring compatibility with different CPU types?

It leverages hardware-based virtualization features present in CPUs Signup and view all the answers

What is the main benefit of using virtual machines in application development, as discussed in the text?

Allows developers to test code without affecting production systems Signup and view all the answers

How does utilizing a virtual machine during coding help developers?

Allows developers to experiment safely with code changes Signup and view all the answers

What is a major concern related to running multiple virtual environments on a single physical device?

Potential corruption of the hypervisor by malware Signup and view all the answers

Why do IT security professionals need to be cautious about VM escaping?

To avoid unauthorized access to multiple virtualized systems Signup and view all the answers

What could happen if malware successfully performs a VM escape?

The malware can spread to other virtual systems on the same hypervisor Signup and view all the answers

Study Notes

Virtualization technology enables running multiple operating systems on a single desktop at once, sharing the same hardware.
This technology was first used with IBM mainframes in the 1960s and has been adapted for PC environments.
Runs on desktops (macOS with virtualized operating systems) or in data centers (each virtual machine having its own CPU, memory, and storage).
Useful for running legacy software on older operating systems while having the latest OS on the desktop.
Helps save time, resources, and money by using a single physical device for multiple operating systems.
Hypervisor is the software managing resources between multiple virtual machines, often utilizing hardware-based virtualization capabilities in CPUs.
Virtualization supports running multiple versions of operating systems simultaneously on a single desktop, such as macOS, Windows 10 Pro, and Windows 11 Pro.
VM snapshots enable taking a snapshot of one VM configuration and returning to the original configuration if needed.
Sandboxing in virtualization provides an isolated testing environment for developers, allowing them to test without affecting production systems.
Concerns in virtualization include VM escaping, where malware gains access to the hypervisor and potentially other virtualized systems.
Provide the same security controls for virtual machines as for traditional physical devices, such as installing firewalls, antivirus software, etc.
Be cautious when downloading virtual machines from third-party sources to avoid potential malware.
Networking configuration varies between virtual machines, with options such as shared network addresses and private IP addresses with network address translation.

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Description

Explore the concept of sandboxing and virtualization within the context of application development. Learn how developers can benefit from isolated testing environments using virtual machines (VMs) for building applications.

Sandboxing and Virtualization in Application Development