CompTIA Security+ (SY0-501) — Question 442

An organization wants to deliver streaming audio and video from its home office to remote locations all over the world. It wants the stream to be delivered securely and protected from intercept and replay attacks.
Which of the following protocols is BEST suited for this purpose?

Answer options

• A. SSH
• B. SIP
• C. S/MIME
• D. SRTP

Correct answer: D

Explanation

SRTP (Secure Real-Time Transport Protocol) is specifically designed to provide encryption, message authentication, and integrity, making it ideal for secure streaming of audio and video. SSH is mainly for secure shell access, SIP is for initiating and managing multimedia sessions, and S/MIME is used for securing email, not for streaming.