单选题A system dump has occured. The LED display shows 0c0. What does this indicate？（）A The dump was successful.B A system dump is in progress.C No system dump device configured.D There was an I/O error during the dump.
题目
单选题
A system dump has occured. The LED display shows 0c0. What does this indicate？（）
A
The dump was successful.
B
A system dump is in progress.
C
No system dump device configured.
D
There was an I/O error during the dump.