# Resource reuse, Resource exhaustion, Concurrent session usage

* **Resource exhaustion**:
  * **Explanation**: This occurs when resources (like CPU, memory, or bandwidth) are depleted, leading to denial of service or degraded performance. It can be due to excessive usage or a deliberate attack.
  * **Why it’s wrong**: Resource exhaustion refers to the depletion of resources, not the improper isolation and access of resources between VMs.
*   **Concurrent session usage**:

    * **Explanation**: This involves multiple sessions being used at the same time, which can lead to security issues like session hijacking or unauthorized access.
    * **Why it’s wrong**: Concurrent session usage pertains to the handling of multiple sessions rather than the isolation of virtualized assets between VMs.



**Resource reuse**

#### Explanation:

**Resource reuse** in the context of virtualization refers to a situation where resources (such as memory, CPU, or storage) that were allocated to one virtual machine (VM) are not properly isolated when reallocated to another VM. This can lead to security issues if sensitive data or configurations from the previous VM can be accessed by the new VM, effectively breaching the isolation between VMs.
