Which of the following statements is correct when talking about /proc/?

Which command makes the shell variable named VARIABLE visible to subshells?

SIMULATION
What word is missing from the following SQL statement?
insert into tablename ________(909, ‘text’);
(Please specify the missing word using lower-case letters only.)

Which run levels should never be declared as the default run level when using SysV init? (Choose TWO correct
answers.)

When the command echo $ outputs 1, which of the following statements is true?

During a system boot cycle, what program is executed after the BIOS completes its tasks?

What output will the following command sequence produce?
echo ‘1 2 3 4 5 6’ | while read a b c; do
echo result: $c $b $a;
done

Which SysV init configuration file should be modified to disable the ctrl-alt-delete key combination?