On the topic of isolating specific software problem, when would you classify an error as being an operational error? Choose all that apply.

A.
When the error occurs after the system has booted up and the system is up and running.

B.
When you experience an issue while installing the operating system.

C.
When you experience a problem while the system is booting.

D.
When you experience an issue while upgrading the operating system.

Explanation:
An operational problem occurs after the system has booted up and the system is up and running, that is, during the normal operation of a system..
Incorrect Answers:
B, D: If you experience an issue while installing the operating system or when you attempt to upgrade the operating system, you have a setup problem. Setup problems that occur when you attempt to upgrade the operating system can result in an unusable server system.
C: A startup problem occurs while the system is booting. Startup problems usually result in the system hardware and software failing to either initialize or operate.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 494-497.