Which of the following will cause a yellow alert to appear on the Diagnostics > Troubleshooting page on a Cisco
TelePresence SX20 Quick Set?

A.
enabling the do-not-disturb feature

B.
not configuring a password for the admin account

C.
operating the system at an acceptable temperature

D.
configuring H.323 as the default call protocol with H.323 mode disabled

Explanation:
Enabling the do-not-disturb feature will cause a yellow alert to appear on the Diagnostics> Troubleshooting
page on a Cisco TelePresence SX20 Quick Set. Yellow alerts indicate warnings that might impact performance
but are not always problematic. A warning appears when the do-not-disturb feature is turned on, because the
do-not-disturb feature prevents a system from accepting calls.
A red alert will appear on the Diagnostics > Troubleshooting page of the web interface for critical issues and
errors. For example, a red alert will appear if H.323 is configured as the default call protocol but H.323 mode is
not enabled. A red alert will also appear if a password is not configured for the admin account.
A green alert will appear on the Diagnostics > Troubleshooting page when a subsystem is working as desired.
For example, a green alert will appear if the system temperature is at acceptable levels.

Cisco: Cisco TelePresence SX20 Quick Set, Administrator Guide: Troubleshooting (PDF)
Cisco: Troubleshooting Guide TC 6.0: New troubleshooting features in TC6 (PDF)