Inside the system: resources, kernel, processes

Quiz: boot and time

Question 1 of 10

The critical-chain output and the systemctl list-jobs queue, Wants=, Requires= and Before=, systemd-analyze verify, a TZ= line in cron and changing the zone, chronyc tracking, chronyc sources and makestep. The questions follow the lessons “From GRUB to a target: how the system boots” and “Time, time zone and synchronisation”.

10 questions · threshold 70%

Read the output

How long did ssh.service take to start, according to this chain?

$ systemd-analyze critical-chain
multi-user.target @5.464s
└─ssh.service @5.427s +34ms
  └─basic.target @4.049s

5.4 seconds.
34 milliseconds.
1.4 seconds — from basic.target to it.

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