Question

1. Any “case” statement can be written as an “if” statement.

True

False

2.How many iterations does the following “loop” statement have?

n = 1 
loop do
    n = n + 1
    puts “hey"
    next unless n = 10
    break
end

0

7

This loop is syntactically incorrect.

9

8

3.The following two conditional expressions are equivalent outcome wise:

n = 1
begin 
    puts n 
end while n < 1

n = 1
while n < 1
    puts n
end

True

False

4.Which one of the following is NOT a Ruby Exception?

TypeError

NoMethodError

IOError

None of the choices.

ArgumentError

RuntimeError

5.In Ruby, you can raise predefined exceptions or create your own in code with the “rescue” keyword.

True

False

6.Which of the following is not a valid keyword in Ruby?

yield

in

until

unless

each

next

stop

Answer 1

1)True

Any case can be written using if statements

2)This loop is syntactically incorrect.

next unless n==10 is correct

when n==10 is used

9 hey are printed

3)False

first expression prints 1 second expression prints nothing.

4)None of the choices.

All the errors mentioned are present.

5)True

6)stop

all other keyword are present in ruby.