Can we send data value as 'x' for rand variable in uvm?

I wanted to test a scenario like

1.Traffic with some valid data
2.Traffic with data as ‘x’
3.Again Traffic with some valid data

In reply to veena a25:

Of course, but fhis requires to use 4-valued data types like logic.
But you can also send any randomized data without any structure. This is like a noise signal.

In reply to chr_sue:

I tried it … working for me thank you chr_sue