Correct Answer. C. cat /proc/cpuinfo | grep vmx The command cat /proc/cpuinfo | grep vmx (for Intel processors) checks for the presence of "vmx" in the processor's capabilities, which indicates support for Intel VT-x hardware virtualization. For AMD processors, replacing vmx with svm in the command checks for AMD-V support.
Option A is incorrect because lscpu | grep "Model name" only provides the model name of the processor and does not indicate virtualization support.
Option B is incorrect because dmidecode -t processor gives detailed processor information but might not specifically show virtualization support unless the user knows what to look for in the output.
Option D is incorrect because uname -m displays the machine hardware name (architecture) of the system, which is unrelated to virtualization capabilities.