Termux gives you a Linux environment inside an Android app, with its own filesystem under the com.termux package. These questions check that you know where you are and what to do first.
Each one is marked as you go, and the explanation arrives straight after, which is
the part worth reading.
4 questions, marked as you go.
Tasks
These need your own device. Run the command in Termux, then paste what it printed.
The marking looks at what the output means, so spacing, version numbers and
ordering do not matter. If you have not installed anything yet, the
lesson covers the setup.
Show where you are
This prints the directory you are currently in. It is a single line, and it tells you something specific about how Termux is put together.
Run this in Termux
On your own device. Nothing on this page executes it. The command runs in
your terminal, and this box only reads what you paste back.
pwd
If the command prints nothing, check you copied the whole line.
the output is an absolute path
it is inside Termux's own filesystem
the command actually ran
What a good answer looks like
You should have something like /data/data/com.termux/files/home. Two things are worth noticing. It is an absolute path, starting from the root, which is what makes it unambiguous wherever you run it from. And it sits inside com.termux, which is Termux's own private area. Your phone's shared storage is somewhere else entirely, under /sdcard, and Termux cannot see it until you ask for permission with termux-setup-storage.
Marking your own work
Both halves of this are checked in your browser, with no server involved, so nothing
stops you from pasting output you did not run. The tasks are written so that the
easiest way to pass one is to actually do it and read the result, which is the whole
intention.