CompTIA CASP+ Practice Test

Which security measure is recommended for securing video conferences that use the H.323 protocol?

1. Implement end-to-end encryption.

2. Utilize a virtual private network (VPN).

3. Disable all external access.

4. Use standard authentication methods only.

The correct answer is: Implement end-to-end encryption.

Implementing end-to-end encryption is crucial for securing video conferences that use the H.323 protocol. This is because H.323 inherently lacks robust security features, making it susceptible to eavesdropping and man-in-the-middle attacks. By ensuring that the communication is encrypted from the sender to the receiver, the confidentiality and integrity of the video and audio data are maintained, preventing unauthorized access to sensitive discussions. End-to-end encryption protects the content of the video call itself, allowing only the intended participants to decrypt and view the information shared during the conference. This level of security is particularly important in environments where sensitive data may be discussed, as it mitigates risks associated with data interception. Other options, while they may contribute to overall security, do not provide the same level of protection that end-to-end encryption does. Utilizing a VPN, for example, helps create a secure tunnel for data transmission but does not encrypt the video content itself. Disabling external access and using standard authentication methods could enhance security measures but are not sufficient on their own to protect the content of video conferences against potential threats. Thus, the recommendation for end-to-end encryption stands out as the most effective measure to secure H.323 video communications.