单选题Which of the following problems has occurred when a message appears on the system console indicating that a dump must be copied to external media? （）AThe external dump device is full. BThe dump device was not mirrored before the dump happened. CThe boo
题目
单选题
Which of the following problems has occurred when a message appears on the system console indicating that a dump must be copied to external media? （）
A
The external dump device is full.
B
The dump device was not mirrored before the dump happened.
C
The boot failed while copying the dump from paging space to a file.
D
The dump device was not set to a paging device before the dump happened.