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nmims post
Objective Type Set
Online MCQ Assignment
Question Solution
Solved Question
Uncategorized

1. The complement of while loop is until loop.
a) True
b) False

Answer: a [Reason:] The until loop is sort of like backward while.

2. What is the output of the given code?

```counter = 1
until counter > 10
puts counter
counter+=1
end```

a) 1 2 3 4 5 6 7 8 9 10
b) 11 12 13 14 … infinite loop
c) 0 1 2 3 4 5 6 7 8 9
d) None of the mentioned

Answer: a [Reason:] Until the condition is false continue looping.

```Output:
1
2
3
4
5
6
7
8
9
10```

3. What is the output of the given code?

```counter = 0
until counter >= 10
puts counter
counter+=1
end```

a) 1 2 3 4 5 6 7 8 9 10
b) 11 12 13 14 … infinite loop
c) 0 1 2 3 4 5 6 7 8 9
d) None of the mentioned

Answer: c [Reason:] Until the condition is false continue looping and here 10 will not be included because condition becomes true when counter is 10.

```Output:
0
1
2
3
4
5
6
7
8
9```

4. What is the output of the given code?

```i = 3
while i > 0 do
puts i
i -= 1
end

j = 3
until j == 0 do
puts j
j -= 1
end```

a) 1 2 3 1 2 3
b) 3 2 1 3 2 1
c) 0 1 2 3 4 5 6 7 8 9
d) None of the mentioned

Answer: c [Reason:] When it comes out of the while loop the until loop starts executing.

```Output:
3
2
1
3
2
1```

5. What is the output of the given code?

```a="hungry"
until !a
puts "hungry"
a=!a
end```

a) hungry
b) Nil
c) Error
d) None of the mentioned

Answer: a [Reason:] Until the condition is not met execute the loop.

```Output:
hungry```

6. What is the output of the given code?

```m= 8
loop do
m += 2
puts m
break if m == 16
end```

a) 10 12 14 16
b) Nil
c) Error
d) None of the mentioned

Answer: a [Reason:] Execute the loop till the condition is met.

```Output:
10
12
14
16```

7. What is the output of the given code?

```m=0
loop do
print "ruby"
m+=1
break if m==5
end```

a) rubyrubyrubyrubyrubyruby
b) rubyrubyrubyrubyruby
c) Error
d) None of the mentioned

Answer: b [Reason:] Execute the loop till m!=5 and then break when m=5.

```Output:
rubyrubyrubyrubyruby```

8. What is the output of the given code?

```m=0
loop do
puts m*10
m+=1
break if m==5
end```

a) 0 10 20 30 40
b) 10 20 30 40 50
c) Error
d) None of the mentioned

Answer: a [Reason:] Execute the loop till m!=5 and then print m*10.

```Output:
0
10
20
30
40```

9. What is the output of the given code?

```m=0
loop do
puts 101
m+=1
break if m==5
end```

a) 101 101 101 101 101
b) 10 20 30 40 50
c) Error
d) None of the mentioned

Answer: a [Reason:] Execute the loop till m!=5 and then print 101 five times.

```Output:
101
101
101
101
101```

10. What is the output of the given code?

```m=5
loop do
m-=1
break if m==0
end```

a) 1 2 3 4 5
b) 10 20 30 40 50
c) Error
d) Nil

```Output: