CompTIA Cloud+ Practice Test

Which solution can enhance application density on a cloud virtual machine?

1. Application containers

2. Dynamic memory

3. Application virtualization

4. Load balancing

The correct answer is: Application containers

Application containers are designed to package an application and its dependencies into a single unit, ensuring that software runs consistently across different computing environments. By using containers, multiple applications can be run on the same host operating system without the overhead that typically accompanies traditional virtual machines. This leads to higher application density, as containers share the same OS kernel, allowing for more efficient use of system resources. This method contrasts with dynamic memory, which adjusts the amount of memory allocated to virtual machines but does not inherently improve the number of applications you can run on a single virtual machine. Application virtualization separates applications from the underlying operating system but does not provide the same level of lightweight, isolated environments that containers do. Load balancing, while crucial for distributing workloads across multiple resources, does not directly impact the density of applications within a virtual machine itself.