Which TWO runlevels should never be declared as the default runlevel?

Which TWO runlevels should never be declared as the default runlevel?

Which TWO runlevels should never be declared as the default runlevel?

A.
0

B.
3

C.
5

D.
6

Explanation:
From the man pages:
Runlevels 0, 1 and 6 are reserved. Runlevel 0 is used to halt the system and 6 to reboot the system. Runlevel 1 is used to bring the system back down into single-user mode.

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kavyashree

kavyashree

Answer A. 0 means Shutdown and D. 6 means Restart. These two numbers we can not put as default runlevel.

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