2V0-21.23 Question 96
Select 3A VMware administrator is tasked with securing virtual machines in a vSphere environment to ensure compliance with organizational security policies. Which methods can the administrator use to enhance virtual machine security?
- A
Enable VM Encryption to encrypt virtual disks and prevent unauthorized access.
- B
Disable unnecessary VM hardware devices such as floppy drives and CD/DVD drives.
- C
Use snapshots to store long-term backups of critical VMs.
- D
Configure VMkernel interfaces with appropriate firewall rules.
- E
Apply virtual machine advanced settings to limit console access.
- F
Utilize VMware Tools to monitor and block unauthorized processes inside the guest OS.
Show answer and explanation
Correct answers: A, B, E
Explanation
Methods like enabling VM Encryption, disabling unnecessary hardware, and restricting console access are specific to securing virtual machines. These measures reduce the risk of unauthorized access or exploitation. Other options, like snapshots, are unrelated to security, and firewall rules for VMkernel interfaces pertain to host-level security rather than VM-specific security.
- A. Correct.
Enabling VM Encryption ensures that virtual disk files are encrypted, protecting sensitive data and preventing unauthorized access. This is a best practice for securing virtual machines.
- B. Correct.
Disabling unnecessary VM hardware devices reduces the attack surface of the virtual machine, making it more secure.
- C. Incorrect.
Snapshots are not designed for long-term backups and can grow large over time, negatively affecting performance and not directly contributing to VM security.
- D. Incorrect.
Configuring VMkernel interfaces with firewall rules is related to securing the ESXi host network, not directly securing individual virtual machines.
- E. Correct.
Applying advanced settings, such as restricting console access, minimizes unauthorized access to the VM's management interface, which is a valid security measure.
- F. Incorrect.
While VMware Tools provides functionality for managing the VM, it does not include monitoring or blocking unauthorized processes inside the guest OS. This would require additional software or security solutions.