Quiz: what a server exposes

Question 7 of 10

Read the output

Output after a nightly upgrade of the lab-feed package. Why does httpd have 0 in the NLINK column?

$ sudo lsof +L1
COMMAND  PID USER  FD   TYPE DEVICE SIZE/OFF NLINK   NODE NAME
httpd   1130 root txt    REG  253,4  2124608     0 308293 /usr/lib/lab-feed/httpd (deleted)

The upgrade corrupted the file, and the kernel marked it as broken.
dpkg renamed the new file over the old one, and the old one has no names left.
The httpd process cannot read its program.

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