They are correct? thank you!

What type of computer network ensures high security ?

Print "usernum1 is negative." if usernum1 is less than 0. end with newline. convert usernum2 to 0 if usernum2 is greater than 10. otherwise, print "usernum2 is less than or equal to 10.". end with newline

List a few alternative options and input and output over the standerd keyboard and monitor. explain their functioning in details.