Exploring Virtualization Technologies

What is virtualization in the context of cloud computing?

• Virtualization refers to the process of increasing physical resource capacity.

• Virtualization is a method for securing data in cloud storage.

• Virtualization is the same as physical server management.

• Virtualization is the process of creating virtual versions of physical resources in cloud computing.

Name two types of virtualization technologies.

• Network Virtualization

• Hardware Virtualization, Operating System Virtualization

• Application Virtualization

• Storage Virtualization

How does hypervisor-based virtualization work?

• Hypervisor-based virtualization allows multiple virtual machines to run on a single physical server by using a hypervisor to manage resource allocation and isolation.

• Hypervisor-based virtualization eliminates the need for any resource management.

• Hypervisor-based virtualization only allows one operating system to run on a server.

• Hypervisor-based virtualization requires a separate physical server for each virtual machine.

What are the benefits of using virtualization in cloud security?

• Increased hardware costs

• Benefits of using virtualization in cloud security include workload isolation, improved resource management, enhanced security policies, reduced attack surface, and efficient incident response.

• Higher energy consumption

• Limited scalability

Explain the difference between Type 1 and Type 2 hypervisors.

• Type 1 hypervisors are slower than Type 2 hypervisors due to their architecture.

• Type 1 hypervisors require a host OS to function, while Type 2 hypervisors do not.

• Type 2 hypervisors run directly on hardware, while Type 1 hypervisors run on a host OS.

• Type 1 hypervisors are bare-metal and run directly on hardware, while Type 2 hypervisors are hosted and run on a host OS.

What role does containerization play in virtualization?

• Containerization enhances virtualization by providing lightweight, isolated environments for applications, improving resource efficiency and deployment speed.

• Containerization requires more resources than traditional virtualization.

• Containerization slows down application deployment significantly.

• Containerization eliminates the need for virtualization entirely.

How can virtualization improve resource management in data centers?

• Virtualization simplifies network management without affecting resources.

• Virtualization reduces the need for physical servers.

• Virtualization eliminates all hardware failures.

• Virtualization improves resource management by optimizing hardware utilization, enabling dynamic resource allocation, and enhancing workload isolation.

What security risks are associated with virtualization?

• Hypervisor vulnerabilities, VM escape attacks, insecure APIs, and misconfigurations.

• Network latency problems

• Data encryption issues

• User interface bugs

Describe how virtual machines (VMs) are isolated from each other.

• VMs are only isolated by physical hardware

• VMs share the same operating system kernel

• Virtual machines are isolated from each other by using a hypervisor, resource allocation, network isolation, security policies, and process isolation.

• VMs can access each other's memory directly

What is the significance of virtual networks in a virtualized environment?

• Virtual networks eliminate the need for any security measures.

• Virtual networks only increase latency in a virtualized environment.

• Virtual networks provide isolation, security, and efficient resource management in a virtualized environment.

• Virtual networks are primarily used for physical device management.