Learn why containers are the ideal virtualization technology for running multiple services, each in its own isolated environment, from a single host machine. Get the details you need to ace the CompTIA CAS-004 certification exam.
Table of Contents
Question
A security administrator is setting up a virtualization solution that needs to run services from a single host. Each service should be the only one running in its environment. Each environment needs to have its own operating system as a base but share the kernel version and properties of the running host. Which of the following technologies would best meet these requirements?
A. Containers
B. Type 1 hypervisor
C. Type 2 hypervisor
D. Virtual desktop infrastructure
E. Emulation
Answer
A. Containers
Containers are the virtualization technology that best meets the requirements outlined in the question.
Explanation
Containers allow multiple services to run in isolated environments on a single host machine. Each container runs its own application or service and has its own operating system, libraries, and dependencies. However, all the containers share the same underlying host operating system kernel.
This architecture provides a high degree of isolation between the different services running in containers. If one container is compromised, it does not affect the other containers or the host OS. At the same time, sharing the host kernel allows containers to be very lightweight and efficient compared to traditional virtual machines.
The other options are not as suitable:
B/C. Type 1 and 2 hypervisors run full virtual machines, each with their own separate kernel, which is not needed here.
D. VDI is for delivering virtual desktops to end users, not running backend services.
E. Emulation mimics different hardware/software, which is overkill for this use case.
In summary, containers provide the right balance of isolation, efficiency, and compatibility with the host OS to meet the stated requirements for running multiple services from a single host machine. Understanding why containers are the best fit for this scenario is key knowledge for the CompTIA CAS-004 exam.
CompTIA CAS-004 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the CompTIA CAS-004 exam and earn CompTIA CAS-004 certification.