CompTIA Cloud+ Practice Test

What should a cloud systems administrator check to improve access issues during peak times for an online banking application in a community cloud?

1. Ensure memory ballooning is enabled

2. Ensure there is adequate disk space available

3. Ensure all users are accessing it through the same web service

4. Ensure the ACLs are set correctly for the user community

The correct answer is: Ensure memory ballooning is enabled

A cloud systems administrator should check whether memory ballooning is enabled to improve access issues during peak times for an online banking application in a community cloud because memory ballooning is a technique used to manage memory allocation efficiently among virtual machines. During high-traffic periods, applications may experience increased load, leading to performance degradation if there is insufficient memory allocated to the VM hosting the application. By enabling memory ballooning, the hypervisor can reclaim memory from less critical VMs and allocate it to VMs that require more resources, thus enhancing the application's responsiveness and overall performance during peak access times. This dynamic allocation helps prevent bottlenecks that can occur when demand exceeds available resources, providing a smoother experience for users accessing the banking application. The other options do not directly address the memory allocation issue. Ensuring there is adequate disk space available is important for data storage but does not affect memory-dependent application performance. Having all users access through the same web service might not resolve issues caused by resource constraints, and incorrectly set ACLs could lead to access problems but wouldn't solve performance issues arising from high memory demand during peak usage.