220-1002 Question #561: Real Exam Question with Answer & Explanation

The correct answer is B: Certificates. Digital certificates (specifically SSL/TLS certificates) are the foundation of secure client-server communication. They serve two purposes: authentication (proving the server is who it claims to be via a trusted Certificate Authority) and enabling encrypted communication (via asy

Question

Which of the following would MOST likely be used in secure client-server communication?

Options

ARedirection
BCertificates
CPort security
DGroup Policy

Explanation

Digital certificates (specifically SSL/TLS certificates) are the foundation of secure client-server communication. They serve two purposes: authentication (proving the server is who it claims to be via a trusted Certificate Authority) and enabling encrypted communication (via asymmetric key exchange to establish a symmetric session key). This is how HTTPS works. Redirection (A) is a networking/web concept unrelated to securing communications. Port security (C) is a network switch-level control for limiting which devices connect to a port. Group Policy (D) is a Windows administrative tool for managing user/computer settings. Certificates are the direct mechanism enabling encrypted, authenticated client-server sessions.

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