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350-401 · Question #968

350-401 Question #968: Real Exam Question with Answer & Explanation

The correct answer is B: SSL certificates. SSL/TLS certificates are critical for mitigating man-in-the-middle attacks on REST APIs by authenticating the server and encrypting the communication channel.

Submitted by dimitri_ru· Mar 6, 2026Security

Question

Which security measure mitigates a man-in-the-middle attack of a REST API?

Options

  • Apassword hash
  • BSSL certificates
  • Cnonrepudiation feature
  • Dbiometric authentication

Explanation

SSL/TLS certificates are critical for mitigating man-in-the-middle attacks on REST APIs by authenticating the server and encrypting the communication channel.

Common mistakes.

  • A. Password hashing protects passwords stored in a database from compromise but does not secure the communication channel itself against interception during an active transaction.
  • C. Non-repudiation typically ensures that an action cannot be denied by the sender or receiver, often via digital signatures, but it doesn't primarily prevent the real-time interception and modification of data in transit.
  • D. Biometric authentication verifies a user's identity based on physical attributes, but it does not secure the actual communication channel over which the REST API operates.

Concept tested. REST API man-in-the-middle protection

Reference. https://learn.microsoft.com/en-us/azure/architecture/best-practices/api-security

Topics

#API Security#SSL/TLS#Man-in-the-middle attack

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