The purpose of the administrator using the keystrokes is to;
Interrupt the Ping Process.
To interrupt an IOS process such as ping or traceroute, it is very important for the user to enter a combination of the Ctrl-Shift-6 key.
Now, Tab will complete the remaining parameters or even arguments within a command.
Finally, to exit from configuration mode to privileged mode, enter the Ctrl-Z keystroke. Thereafter, CTRL-R will redisplay the line you just typed, which makes it simpler for the user to press Enter key and reissue the ping command.
Read more about computer keyboard commands at; https://brainly.com/question/14447287