Virtualization and Cloud Computing 11% Flashcards
A web developer needs to test the compatibility of web functions across multiple different browsers and versions of those browsers. The web developer only has one machine and cannot install multiple browser versions.
Which of the following should the developer do to BEST resolve the issue?
A. Purchase more machines.
B. Deploy application virtualization.
C. Test using a virtual desktop.
D. Set up a multiboot configuration.
C. Test using a virtual desktop.
VDI enables the creation of multiple virtual machines (VMs) on a single physical machine. Each VM can run different browser versions, providing a flexible, cost-effective way to test web compatibility without multiple physical systems.
Incorrect Options:
A. Purchase more machines: While possible, buying multiple physical machines is costlier and less efficient than virtualization.
B. Deploy application virtualization: Application virtualization isolates apps from the OS but doesn’t offer the same level of testing flexibility or compatibility across various OS and browser combinations.
D. Set up a multiboot configuration: Multiboot setups allow multiple OS installs but are cumbersome for testing, as they require reboots and don’t isolate resources as effectively as VDI.
The Chief Executive Officer wants to ensure company data is stored in a manner that provides the company with complete control over how the data is managed.
Which of the following is the BEST cloud deployment model for this request?
A. Community
B. Hybrid
C. Public
D. Private
D. Private
A private cloud deployment is best for organizations seeking complete control over data management. In a private cloud, the infrastructure is dedicated solely to one organization, enabling customization and strict security to meet specific requirements.
Key features of private clouds:
Dedicated Infrastructure: Exclusive resources for one organization.
Control and Customization: Full control over management, security, and configuration.
Enhanced Security: Data is stored in an organization-controlled environment, ensuring greater data security.
Compliance Support: Suited for industries with strict regulatory needs.
Other options explained:
A. Community Cloud: Shared among organizations with similar requirements, but doesn’t offer exclusive control.
B. Hybrid Cloud: Combines public and private clouds, providing flexibility but not the same control for sensitive data.
C. Public Cloud: Uses shared infrastructure managed by a third party, with less control and customization.
A company uses legacy accounting software, and no replacement is available Which of the following virtualization solutions will the company MOST likely select?
A. Network
B. Storage
C. Desktop
D. Sandbox
C. Desktop
Desktop virtualization enables the company to use their legacy accounting software by hosting it on virtual desktops, which can run on modern hardware without compatibility issues. This allows employees to access the software from various devices while keeping the application operational in a compatible environment.
Incorrect Options:
a. Network Virtualization: Network virtualization is for creating multiple virtual networks on shared physical infrastructure and is unrelated to running legacy software.
b. Storage Virtualization: This pools storage resources for centralized management, which doesn’t address the issue of running legacy applications.
d. Sandbox: A sandbox provides isolated testing but isn’t suited for regular use of legacy software. It’s mainly for secure, temporary execution of untrusted applications.
A technician wants to deploy a .msi package to a corporate network. The technician needs to verify the application deployment will not affect other legacy applications on the end users’ computers.
Which of the following would the technician consider the MOST appropriate for this situation?
A. Virtual network
B. Application virtualization
C. Cross-platform virtualization
D. Virtual sandbox
E. Virtual desktop
d. Virtual sandbox
Correct Answer:
Virtual sandbox: A virtual sandbox provides an isolated environment for safely testing software without impacting the main system. This lets the technician deploy the .msi package to check compatibility and verify it doesn’t interfere with legacy applications before rolling it out to the network.
Incorrect Options:
A. Virtual network: A virtual network simulates network connections, not a testing environment for application deployment.
B. Application virtualization: Though it isolates applications, it may not fully replicate how the .msi package will interact with other applications on end-user devices.
C. Cross-platform virtualization: This runs different operating systems on a single machine but isn’t designed specifically for testing application deployment.
E. Virtual desktop: Virtual desktops provide remote desktop access, not an isolated environment focused on testing applications.
An insurance company wants to implement cloud computing and would like a cloud solution in which the infrastructure is shared with businesses in the same industry.
Which of the following cloud models BEST addresses the company’s need?
A. Community
B. Private
C. Public
D. Hybrid
a. Community
Correct Answer:
Community Cloud: In this model, infrastructure is shared among organizations with similar interests or compliance needs. It allows the insurance company to share resources with other businesses in the same industry while maintaining control over their data.
Incorrect Options:
B. Private: This model is dedicated to a single organization, providing high control and security but does not involve resource sharing with other businesses.
C. Public: The infrastructure is owned by a third-party provider and available to the general public. It lacks the focused sharing required by the insurance company.
D. Hybrid: This model combines public and private clouds but does not specifically cater to organizations within the same industry, which the community cloud does.
Which of the following virtualization technologies allows Linux and Windows operating systems to run concurrently?
a. Test environment
b. Sandbox
c. Legacy OS
d. Cross-platform
D. Cross-platform
Correct Answer:
Cross-Platform Virtualization Technology: This allows different operating systems, like Linux and Windows, to run simultaneously on the same hardware by creating independent virtual machines (VMs).
Incorrect Options:
A. Test Environment: Refers to a separate space for software testing, not for running multiple OS concurrently.
B. Sandbox: An isolated space for safely running untrusted software, not for concurrent OS operation.
C. Legacy OS: Outdated systems that can run on modern hardware via virtualization, but does not enable simultaneous operation of different OS.
A technician needs to increase the available RAM on a virtual workstation. Which of the following should the technician do?
a. Increase the ECC memory timings in the BIOS.
b. Upgrade to the latest DDR5 modules.
c. Clear the temporary files on the workstation’s boot drive.
d. Use a hypervisor to adjust the resource allocation.
D. Use a hypervisor to adjust the resource allocation.
Explanation:
To increase the available RAM on a virtual workstation, the technician should use a hypervisor. A hypervisor manages and allocates resources, allowing adjustments to the amount of RAM for each virtual machine.
Incorrect Options:
A. Increase ECC Memory Timings in BIOS: This relates to error correction settings for existing RAM, not adding more RAM.
B. Upgrade to Latest DDR5 Modules: While beneficial for physical machines, DDR5 modules do not directly apply to virtual machines.
C. Clear Temporary Files on Boot Drive: This frees up storage space but does not increase RAM for improving performance and multitasking.
A bank wants to leverage cloud computing but would like a cloud solution in which infrastructure is shared with businesses in the same industry.
Which of the following cloud models would BEST address the bank’s need?
A. Private
B. Hybrid
C. Public
D. Community
D. Community
The community cloud model is ideal for the bank, as it allows sharing infrastructure and resources with businesses in the same industry, ensuring compliance with industry-specific standards and regulations.
Incorrect choices:
A. Private:
A private cloud offers dedicated resources for one organization, which does not meet the bank’s requirement for shared infrastructure with other businesses.
B. Hybrid:
A hybrid cloud combines private and public services but does not specifically guarantee resource sharing among businesses in the same industry, unlike the community cloud.
C. Public:
Public clouds provide shared services over the internet but may not meet the bank’s needs for compliance and security, as they lack the industry-specific focus of a community cloud.
Which of the following concepts would be used by an online retailer to quickly add more web servers during peak sales times?
A. Community cloud
B. Rapid elasticity
C. High availability
D. Metered service
B. Rapid elasticity
Rapid elasticity in cloud computing allows resources to be quickly scaled up or down based on demand. For an online retailer facing peak sales times, rapid elasticity enables the quick provisioning of additional servers to handle increased traffic, which can then be scaled back afterward to save on costs.
Here’s why other options are less relevant:
Community cloud: Shared by multiple organizations but doesn’t specifically address quick resource scaling for peak demands.
High availability: Ensures uptime but doesn’t provide the rapid scaling of resources.
Metered service: Charges based on usage but doesn’t facilitate rapid scaling for handling peak traffic.
Which of the following would an administrator use to migrate virtual machines from on premises to the cloud?
A. IaaS
B. SaaS
C. DBaaS
D. DRaaS
A. IaaS (Infrastructure as a Service)
IaaS (Infrastructure as a Service) provides virtualized computing resources, such as virtual machines, storage, and networking, over the internet. It enables administrators to migrate virtual machines from on-premises data centers to cloud platforms like AWS, Azure, or GCP, allowing for efficient workload management in a cloud environment.
Here’s a brief overview of why the other options are incorrect:
B. SaaS (Software as a Service): SaaS delivers software applications via the internet on a subscription basis, but it does not facilitate the migration of virtual machines.
C. DBaaS (Database as a Service): DBaaS offers database management services without requiring users to maintain software, but it’s not intended for migrating virtual machines.
D. DRaaS (Disaster Recovery as a Service): DRaaS focuses on cloud-based disaster recovery solutions and data replication, rather than the migration of virtual machines from on-premises environments to the cloud.
Which of the following describes the BEST use case for a client-side hypervisor?
A. For a software developer who is required to test an application in many environments
B. When the data center environment is out of resources for a new server
C. As a cost-saving measure to allow multiple users on one computer
D. To provide a backup to cloud-based solutions during internet failures
A. For a software developer who is required to test an application in many environments
A client-side hypervisor runs directly on a client machine (like a desktop or laptop) and allows multiple virtual machines (VMs) to operate simultaneously. Its best use case is for software developers needing to test applications across different environments, enabling efficient VM management without multiple physical machines.
Now, let’s examine why the other options are incorrect:
B. When the data center environment is out of resources for a new server: Client-side hypervisors are for individual use, not for data center resource allocation.
C. As a cost-saving measure to allow multiple users on one computer: They primarily serve individual users or developers, not multi-user scenarios.
D. To provide a backup to cloud-based solutions during internet failures: Client-side hypervisors do not provide redundancy for cloud services; they focus on running VMs locally.
Which of the following is the PRIMARY security concern with virtual machine escape?
A. Cross-site scripting
B. Compromising the hypervisor
C. Overutilization of resources
D. Rogue virtual machines installed on the hypervisor
B. Compromising the hypervisor
Primary Concern: Virtual machine escape refers to a vulnerability where a virtual machine (VM) gains unauthorized access to the host or hypervisor, compromising all VMs running on that hypervisor.
Why Other Options Are Incorrect:
A. Cross-site scripting (XSS): This web application vulnerability involves malicious scripts injected into web pages and is unrelated to virtual machine escape.
C. Overutilization of resources: While it affects performance, it does not directly relate to the security implications of virtual machine escape.
D. Rogue virtual machines: These are unauthorized VMs on a hypervisor and pose risks, but they do not encompass the core issue of a VM escaping its isolation.
Which of the following would be the BEST reason to use a virtual machine as a sandbox?
A. To test new software in a safe environment
B. To increase the efficient use of computing resources
C. To run multiple machines on the same hardware
D. To have dedicated hardware for a single system
A. To test new software in a safe environment
Using a virtual machine as a sandbox is primarily for safely testing new software. This isolated environment protects the host system and other production environments.
Other options explained:
B. Increase computing efficiency: While VMs can optimize resource use by hosting multiple VMs on one physical server, this is not the main reason for sandboxing.
C. Run multiple machines on the same hardware: Although virtualization allows multiple VMs on one system, it doesn’t specifically support sandboxing for software testing.
D. Dedicated hardware for one system: Virtualization is about sharing hardware resources, so this contradicts sandboxing’s purpose, which doesn’t require dedicated physical hardware.
A startup company is outgrowing its current office space and is requiring employees to work remotely. The company must comply with government-enforced requirements to safeguard all aspects of data, so the IT department plans to maintain complete control over users’ operating systems.
Which of the following should the IT department implement?
A. VDI
B. IaaS
C. VPN
D. SaaS
A. VDI
Virtual Desktop Infrastructure (VDI) is the best solution for maintaining control over users’ operating systems, enabling remote work, and meeting data protection requirements. VDI allows users to access desktops remotely, with each desktop hosted on virtual machines within the organization’s data center, ensuring centralized control and security.
Other options explained:
B. IaaS: Offers virtual resources like servers and storage but doesn’t specifically control users’ operating systems for remote work.
C. VPN: Secures remote connections to the network but lacks inherent control over users’ operating systems.
D. SaaS: Provides software online but doesn’t manage or control users’ operating systems, which is crucial for this scenario.
A new version of Windows was released and a piece of software vital to the engineering department will not run on the new version.
Which of the following is the BEST option to enable this department to be able to continue using this software?
A. Do not upgrade any workstations within the organization.
B. Upgrade all workstations and provide a virtual environment for the legacy software.
C. Upgrade all workstations except those used by the engineering department.
D. Purchase new workstations for the engineering department.
B. Upgrade all workstations and provide a virtual environment for the legacy software.
The best solution in this case is to upgrade all workstations and provide a virtual environment for the legacy software. This ensures the organization benefits from the latest version of Windows, with security updates and new features, while also allowing the engineering department to continue using the vital software through virtualization technology.
Why the other options aren’t ideal:
A. Do not upgrade any workstations: This leaves the organization vulnerable to security risks and misses out on performance and feature improvements from the new Windows version.
C. Upgrade all workstations except those used by the engineering department: Creates inconsistency across the organization and doesn’t solve the engineering department’s software compatibility issue.
D. Purchase new workstations for the engineering department: Not necessary if existing workstations can handle the new Windows version, and it doesn’t resolve the software compatibility issue.
