After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?A．It will recall the previous command lineB．It will move the cursor one line upC．It will redisplay the current command lineD．It will capitalize th
题目
After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?
A．It will recall the previous command line
B．It will move the cursor one line up
C．It will redisplay the current command line
D．It will capitalize the command line
E．None of the above