CompTIA A+ 4.2
A technician is reviewing the various aspects of virtualization. What type of virtualization enables programmers to ensure that the application continuously updates with the latest code? Application virtualization Sandbox Cross-platform virtualization Legacy software/OS
Application virtualization Application virtualization enables programmers and application administrators to ensure that the application used by clients is always updated with the latest code.
An upcoming project will require a system administrator to deploy a client-side virtualization workstation. What resource requirements must the system administrator identify for the hypervisor and of each guest before installation? (Select all that apply.) CPU System memory Mass Storage Sandbox
CPU Host workstations require central processing units (CPUs) with unique instruction sets to improve virtualization performance while also providing virtualization support. System memory Guest and host operating systems require sufficient system memory, for example, Windows 10 requires at least 2 GB of memory on the host. Additional guest operating systems will also need a separate allocation to operate. Mass Storage Mass storage will require the management of hard disk space in virtualization. Each guest OS will require a substantial amount of storage space, while the host hypervisor will also require its storage to share as guest OSs grow dynamically.
An engineer is deploying a client-side virtualization workstation. What resource requirements should the engineer consider? (Select all that apply.) CPU and virtualization extensions Networking Host security Guest OS security
CPU and virtualization extensions Networking Most virtualization software requires a central processing unit (CPU) with virtualization support enabled. Even if there is no formal requirement, the VMs will be impaired if hardware-assisted virtualization is unavailable. A hypervisor will create a virtual network environment through which all the virtual machines (VMs) can communicate and has a network shared by the host and by VMs on the same host and other hosts.
An organization with limited resources would like to upgrade its small network to increase its security. However, the organization requires a few legacy applications running on two older, none-supported operating systems. With only one desktop to spare, what solution would meet the organization's needs? Application virtualization Client-side virtualization Server-side virtualization Cloud scalability
Client-side virtualization Client-side virtualization, typically based on a guest operating system hypervisor, is designed to run on regular desktops and workstations while supporting legacy software and operating systems.
It is not out of the ordinary to require multiple operating systems in most corporate environments. What virtualization type can provide a testing or lab atmosphere that offers a means to test software and applications that require different resource constraints and operating systems? VM escape VDI Cross-platform Sandbox
Cross-platform Cross-platform virtualization is a lab and testing environment that enables a means to test software and applications under different resource constraints and operating systems.
A system administrator manages a production network with various operating systems. What would allow for testing the operating system and application patches on multiple operating systems to ensure the production network does not experience adverse effects? Container virtualization Cross-platform virtualization Remote Desktop Virtual private network
Cross-platform virtualization Cross-platform virtualization is a lab and testing environment that enables a means to test software and applications under different resource constraints and operating systems.
A cyber technician needs to expand organizational capabilities and explore virtualization's use and testing. What tests software applications under different OSs and resource constraints? Cross-platform virtualization Guest OS Legacy software/OS Sandbox
Cross-platform virtualization Cross-platform virtualization tests software applications under different OSs and resource constraints.
A technician is evaluating the security requirements associated with virtualization. What tenets apply to security requirement considerations? (Select all that apply.) Each guest OS requires sufficient system memory that is required by the host OS/hypervisor. Each guest OS must be patched and protected against malware like any other OS. The host must be protected from natural (loss of power) and technological (virus) influences. The hypervisor must also be monitored for security vulnerabilities and exploits.
Each guest OS must be patched and protected against malware like any other OS. The host must be protected from natural (loss of power) and technological (virus) influences. The hypervisor must also be monitored for security vulnerabilities and exploits. Each guest operating system (OS) must be patched and protected against malware like any other OS. Patching each virtual machine (VM) individually has performance implications, so in most environments, a new template image would be patched and tested then deployed to the production environment. Another key security vulnerability in a virtual platform is that the host represents a single point of failure for multiple guest OS instances. Influences can be natural or technological. Apart from ensuring the security of each guest OS and the host machine itself, they must also monitor the hypervisor for security vulnerabilities and exploits.
A technician is reviewing policy on security requirements associated with virtualization. What could the technician consider as part of the security requirements? (Select all that apply.) Host security Hypervisor security Cross-platform virtualization Application virtualization
Host security Hypervisor security A key security vulnerability in a virtual platform is that the host represents a single point of failure for multiple guest OS instances. For example, if the host loses power, three or four guest VMs and the application services they are running will suddenly go offline. Additionally, the hypervisor must also be monitored for security vulnerabilities and exploits.
A lab technician is reviewing the various resource requirements associated with virtualization. What is NOT considered a resource requirement? CPU and virtualization extensions Mass storage Hypervisor security System memory
Hypervisor security Hypervisor security is not considered a resource. Apart from ensuring the security of each guest operating system (OS) and the host machine itself, they must also monitor the hypervisor for security vulnerabilities and exploits.
A cyber architect is reviewing the organization's policy on virtualization security requirements. What would the architect discuss within these security requirements? (Select all that apply.) Guest OS security Host security Hypervisor security CPU and virtualization extensions
Hypervisor security Apart from ensuring the security of each guest OS and the host machine itself, they must also monitor the hypervisor for security vulnerabilities and exploits. Guest OS security Each guest OS must be patched and protected against malware like any other OS. Patching each virtual machine (VM) individually has performance implications, so in most environments, a new template image would be patched and tested then deployed to the production environment. Host security Another key security vulnerability in a virtual platform is that the host represents a single point of failure for multiple guest OS instances.
A cyber architect is reviewing log entries from a fellow architect regarding using a sandbox to evaluate a virus. What is the benefit of using a sandbox? It can provide the architect with a place to work in a secured environment. It allows the architect the ability to test software applications under various constraints. It outlines the security requirements associated with virtualization. It outlines the resource requirements for deploying a client-side virtualization workstation.
It can provide the architect with a place to work in a secured environment. A sandbox is an isolated environment to analyze viruses, worms, and Trojans. The malware is within the guest operating system (OS), so it cannot infect the architect's computer or network.
A software technician identifies potential risks with installing a new operating system across the enterprise. What should the technician consider regarding legacy software applications? It uses a desktop VM and guest OS hypervisor. It tests software applications under various constraints. It creates an isolated testing environment. It may not work well with the new OS.
It may not work well with the new OS. If the host computers are upgraded versions, legacy software applications may not work well with the new operating system (OS). As a result, the working environment could be degraded or cease to operate until it could acquire a suitable application.
A cyber engineer has isolated malware and wants to analyze it. What is the value of using a sandbox? It tests software applications under various constraints. It tests stability using a desktop VM and hypervisor. It uses applications that may clash with a new OS. It provides a controlled working environment.
It provides a controlled working environment. A sandbox is an isolated environment to analyze viruses, worms, and Trojans. The malware is within the guest operating system (OS), so it cannot infect the engineer's computer or network.
A cyber architect explores the capabilities, testing, and use of virtualization. What is a benefit associated with cross-platform virtualization? It uses applications that may clash with a new OS. It tests software applications under various constraints. It provides a controlled working environment. It tests stability using a desktop VM and hypervisor
It tests software applications under various constraints. Cross-platform virtualization tests software applications under different OSs and resource constraints.
A cyber consultant is evaluating the various security requirements associated with virtualization. What is NOT considered a security requirement? Host Guest OS Hypervisor Legacy software/OS
Legacy software/OS If the host computers are upgraded versions, legacy software applications may not work well with the new operating system (OS). Legacy software is neither a resource nor a security requirement.
A cyber technician wants to test and analyze a virus. What can the technician use to create an isolated environment while protecting the technician's computer and the company network? Legacy software/OS Test development Sandbox Cross-platform virtualization
Sandbox A sandbox is an isolated environment to analyze viruses, worms, and Trojans. The malware is within the guest operating system (OS), so it cannot infect the technician's computer or network.
A cyber technician will need to analyze an email attachment forwarded from a network user. What should the technician use to have an isolated environment to inspect and research the attachment without allowing a potential virus or worm to infect the network? Network tap Services console Event viewer Sandbox
Sandbox The technician would use a sandbox, typically used for testing and development. It would provide an isolated environment to analyze viruses or worms while protecting the network from the adverse effects of an infection.
An information security technician manages a secure and isolated network. Security is the primary concern on the isolated network, so it requires regular data transfers over optical compact disks due to network separation requirements. With the needed data and antivirus patch testing for malware detection, what solution would best fit this situation? Sandbox Virtual private network Remote Desktop Protocol Network tap
Sandbox A sandbox would provide an isolated environment to test malware or analyze data while protecting the network from the adverse effects of an infection.
Client-side virtualization, typically based on a guest operating system hypervisor, is a solution ordinally suited for desktop or workstation computers commonly used for what? Testing and development Keeping applications up to date Server resource consolidation Virtual machine escape
Testing and development Client-side virtualization, typically based on a guest operating system hypervisor, is designed to run on regular desktops and workstations to provide a means to test and develop applications.
A cyber team is developing a client-side virtualization environment for third-party contracted employees. What action does the team complete using a VM and guest OS hypervisor to ensure the environment is functioning correctly? Cross-platform virtualization Sandbox Legacy software/OS Testing and development
Testing and development Testing and development typically use a virtual desktop platform with a guest OS hypervisor. This ensures it is working as expected.
A cyber architect reviews the differences between resource and security requirements associated with virtualization. What should the architect consider regarding resource requirements? (Select all that apply.) The amount of memory required by the host/hypervisor. The amount of available disk space. The ability to create a virtual network environment. The ability to monitor exploits and vulnerabilities.
The amount of memory required by the host/hypervisor. The amount of available disk space. The ability to create a virtual network environment. Each guest operating system (OS) requires sufficient system memory over and above what the host OS/hypervisor requires. Each guest OS also takes up a substantial amount of disk space. The virtual machine's (VM's) "hard disk" is stored as an image file on the host. A hypervisor will create a virtual network environment through which all the VMs can communicate and a network shared by the host and by VMs on the same host and other hosts.
When planning to deploy a client-side virtualization solution for malware analysis where no network connectivity is needed, what are some of the issues that a technician must consider? (Select all that apply.) The resource requirements The security requirements A cloud storage solution A wireless access point solution
The resource requirements The security requirements When planning a virtualization solution, the resource requirements, such as the central processing unit (CPU), memory, and storage of the host and all guest operating systems, should be addressed to ensure no resource constraints exist. When planning a virtualization solution, the technician must evaluate security resources to ensure the security of the host computer and guest operating systems. Additionally, monitoring of the hypervisor for security vulnerabilities and exploits is needed.
What technology increases network security requirements while providing support for legacy software and operating systems? Remote Desktop Protocol Virtual private network Load balancer Virtualization
Virtualization Virtualization supports legacy software and OSs. When host computers receive an upgrade, some software applications may not work with the new operating systems (OS). Virtualization offers an environment to run older software and OSs while increasing security.
