A systems administrator is receiving errors while trying to install a popular virtualization software. The software specifications state the processor needs to support virtualization with Intel instructions. Additional requirements state the processor must accelerate encryption/decryption and use hyperthreading. Given the following output about the processor:

fpu ume depse tsu msr pae mce cx8 apic sep mtrr pae mca cmov pat pse36 cflusm mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx rdrand hypervisor lahf_lm fsgsbase Which of the following is the MOST likely reason for the errors?

Question

A systems administrator is receiving errors while trying to install a popular virtualization software. The software specifications state the processor needs to support virtualization with Intel instructions. Additional requirements state the processor must accelerate encryption/decryption and use hyperthreading. Given the following output about the processor:

fpu ume depse tsu msr pae mce cx8 apic sep mtrr pae mca cmov pat pse36 cflusm mmx fxsr sse sse2 ht syscall nx rdtscp lm constant_tsc rep_good nopl xtopology nonstop_tsc pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx rdrand hypervisor lahf_lm fsgsbase Which of the following is the MOST likely reason for the errors?

Accepted Answer

C. The processor does not support hyperthreading. The ht flag in /proc/cpuinfo signals that the CPU chip supports Hyper-Threading Technology at the hardware level, but the BIOS or hypervisor layer may have disabled it, meaning the feature is not operational. The virtualization software's installer validates that hyperthreading is actively functional - not merely advertised by the CPU - and fails when it cannot confirm this, making hyperthreading the most likely unmet requirement.

Answer

A. The processor supports AMD instructions rather than Intel. The CPU flags include Intel-specific features such as sse4_1, sse4_2, pclmulqdq, and x2apic, which are characteristic of Intel architecture rather than AMD.

Answer

B. The processor cannot accelerate decryption. The aes flag is present in the output, confirming the processor supports AES-NI hardware acceleration for both encryption and decryption operations.

Answer

D. The processor is running inside a virtual machine. While the hypervisor flag indicates the system is running inside a virtual machine, the question asks for the MOST likely cause among the explicitly stated software requirements, and functional hyperthreading is the requirement that cannot be confirmed from the flags alone.

A systems administrator is receiving errors while trying to install a popular virtualization software. The software specifications state the processor needs to support virtualization with Intel instru

Question

Options

How the community answered

Why each option

Topics

Community Discussion