Question 1

shift (@array);

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splice (@array, 0, 1);
splice (@array, @array-1, 1);
splice (@array, scalar(@array), 0, @sublist);
splice (@array, 0, 0, @sublist);

Answer

Correct Option: A

Question 2

pop (@array);

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splice (@array, 0, 1);
splice (@array, @array-1, 1);
splice (@array, scalar(@array), 0, @sublist);
splice (@array, 0, 0, @sublist);

Answer

Correct Option: B

Question 3

@array = (1,2,3); $scalar = $array[3]; print “$scalar”;

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3
0
Error:Array value out of bound
Null value

Answer

Correct Option: D

Question 4

@array = (10,30,20); sort(@array); print @array;'

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10 20 30
10 30 20
30 20 10
1 2 3

Answer

Correct Option: B

Question 5

. '@array = (“cat”, “rat”, “mat”); chop(@array); print @array;'

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ca ra ma
cat rat ma
cat rat
cat rat mat

Answer

Correct Option: A

Question 6

$string = "Hello World"; substr($string,6)="Perl"; print $string;

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Hello Perl
Hello Perl World
Hello
Perl World

Answer

Correct Option: A

Question 7

if(143 lt 34) { print “If is true”; } else { print “If is false”; }

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If is true
If is false
Error
No output

Answer

Correct Option: A

Question 8

@array = (1,2,3,4,5) $scalar1, $scalar2 = @array; print “Scalar1 value is $scalar1”; print “Scalar2 value is $scalar2”;

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1 2
4 5
4 4
4 0

Answer

Correct Option: A

Question 9

$scalar = (10,20,30); print $scalar;

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10
20
30
3

Answer

Correct Option: C

Question 10

@array = (100, 80, 70); @sort_arr = sort(@array); print @sort_arr;'

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70 80 100
100 80 70
100 70 80
1 2 3

Answer

Correct Option: C

Question 11

What operator is used to check whether the file is empty or not

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-e'
-s'
-z'
-x'

Answer

Correct Option: C

Question 12

/d[^oO]g/ matches?

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dog
dOg
doOg
dig

Answer

Correct Option: D

Question 13

$input = “abdce”; $output = $input =~ tr/abc/123; print $input; print $output

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12d3e 3
12d3e 5
12d3e 1
Error
12d3e null string

Answer

Correct Option: A

Question 14

The purpose of ?: in this is /(?: [a-z]+/ is?

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To enclose a subpattern in parenthesis without storing it in memory.
To define a boundary condition
To enclose a pattern within pattern
None of the above

Answer

Correct Option: A

Question 15

Which of the following is not a predefined subroutine?

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BEGIN
END
DEFAULT
AUTOLOAD
NONE OF THE ABOVE

Answer

Correct Option: C

Question 16

Which is the best way to delete an element in an associative array?

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Delete
Push
Pop
Shift
Unshift

Answer

Correct Option: A

Question 17

$string = “GoodWorld”; $string =~ s/o*/i/; The value of $string is?

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iGoodWorld
GidWirld
GidWorld
Gioworld
GoodWorld

Answer

Correct Option: A

Question 18

$data = “Welcome Perl” =~ /(.*)/; print $data;

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0
1
Welcome
Perl
Welcome Perl

Answer

Correct Option: B

Question 19

my %hash = ( 'hi' => {'hello' => 'all'}, 'bye' => {'later' => 'gone'} ); print $hash{'hi'};

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hello
0
hello => all
HASH(0x??????) where ?????? is a group of hex digits.
error

Answer

Correct Option: D

Question 20

my $val = ‘x’; print ref($val);

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scalar
any decimal value
empty value
x

Answer

Correct Option: C

Description: programming languages Online Quiz - 124
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: programming languages

programming languages Online Quiz - 124

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