SY0-301 Question #131: Real Exam Question with Answer & Explanation

The correct answer is D: Hardware encryption is faster than software encryption.. HSMs (Hardware Security Modules) are dedicated cryptographic processors that outperform software-based encryption in speed and security. They offload cryptographic operations from the CPU using specialized hardware.

Question

Which of the following BEST explains the use of an HSM within the company servers?

Options

AThumb drives present a significant threat which is mitigated by HSM.
BSoftware encryption can perform multiple functions required by HSM.
CData loss by removable media can be prevented with DLP.
DHardware encryption is faster than software encryption.

Explanation

HSMs (Hardware Security Modules) are dedicated cryptographic processors that outperform software-based encryption in speed and security. They offload cryptographic operations from the CPU using specialized hardware.

Common mistakes.

A. Thumb drives are a removable media threat addressed by DLP or port controls, not HSMs, which are focused on cryptographic key protection and hardware-accelerated encryption.
B. Software encryption cannot replicate the tamper-resistance, physical key isolation, and dedicated processing speed that HSMs provide - it is specifically the hardware nature of HSM that differentiates it.
C. DLP (Data Loss Prevention) addresses data exfiltration via removable media, which is a separate concern from the cryptographic acceleration and key protection role of an HSM.

Concept tested. Hardware Security Module purpose and performance advantage

Reference. https://learn.microsoft.com/en-us/azure/key-vault/managed-hsm/overview

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