Final test: Inside the system: resources, kernel, processes

Read the output

A service writes Too many open files to its log. How many files can its process keep open?

$ ulimit -n
1024
$ grep 'open files' /proc/$(pgrep -x shipper)/limits
Max open files            64                   64                   files

• A 64.
• B 1024 — the same as the shell.
• C Unlimited — root started the service.
• D 128 — soft and hard together.