MATH AND CONDITIONAL IN PERL

Faq.txt

Q1. what will be the return value if a condition is false?
ans: 0 or " ".

Q2.What are switch statement called in perl?
ans: Given and when statement.

Q3.What is the math function to convert a hexadecimal to decimal?
ans: Hex function syntax: hex hexadecimal value.

Q4.How can we get a random value between 0 and 1?
ans: rand() , this will give the random value between 0 and 1.

Mcq.txt

Q1. my $r=int(rand(2))
    print $r;

Is there any possibility that the above code will give output as 2:

a) Yes
b) No

Q2.What will be the output of this code :

    my$x=2;
    print $x++;
    print $x--; 
    
a) 23
b) 32
c) 3
   2
d) None of the above

ans: a)

Q3.What is the correct way to use shorthand assignment operator?
a) +=
b) =+
c) ++=
d) none of the above

ans: a)

Q4) What will the output of this statement :

      my$x=9;
      print oct(hex($x));
      
a) 9
b) 0
c) -1
d) 8

ans : b

Q5. What will be the output of the statement:
          print 5!=4;

a) false
b) true
c) 1
d) 0

ans: c)