Candidate vs Active configuration

Let's check "show configuration interfaces" on the operational mode:



We have the same output with "show interfaces" under [edit interfaces] level:



Let's make a little change under interface tap (I added a description ):



Now, if we issue a "show configuration interfaces" again, we'll have a different output than with "show interfaces":



It's because the active configuration and the candidate configuration aren't the same here. How do we view the difference? "show interfaces | compare rollback 0" which compares the interfaces section between the active and the candidate configurations: