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New Questions 4
Consider the following lines of code:
@array1 = ("apples", "oranges", "pears", "plums"); foreach (@array1) {print "$_\n"};
What is the result of these lines of code?
A. applesorangespearsplums
B. apples oranges pears plums
C. apples
D. apples oranges pears plums
Answer: D
New Questions 5
Consider that a file named test.txt contains this line of text: One line of test text.
What is the output of the following lines of code?
$file = "test.txt";
open (OUT, "<$file") || (die "cannot open $file: $!"); seek(OUT, 15, 0);
read(OUT, $buffer, 5); print $buffer . "\n"; print tell(OUT);
A. t text 20
B. t tex 19
C. t text 19
D. t tex 20
Answer: D
New Questions 6
Regular expressions are best used for which task?
A. To perform arithmetic functions
B. To determine whether a string matches a specific pattern
C. To perform spelling checks within text files
D. To output data to a text file
Answer: B
New Questions 7
Consider the following assignments:
$x = 9
$y = 7
$z = 5
Given these assignments, which one of the following expressions evaluates as true?
A. ($x - $y) != ($y - $z);
B. ($z * 2) <= $x;
C. ($y + $z + $x) = $y*3;
D. ($x 2) > $y;
Answer: C
New Questions 8
Which one of the following while statements uses correct syntax and expressions?
A. while {0} (print "OK");
B. while ($c != 99) {print "OK"}
C. while {$b eq "OK"} (print "$a++");
D. while ($_) Do {print "OK");
Answer: B
New Questions 9
Consider the following program code:
print(1 );
BEGIN { print(2 ); }
END { print(3 ); }
BEGIN { print(4 ); } END
{
package MyPackage; print(5 );
}
What is the result of executing this program code?
A. The code will output the following: 1 2 3 4 5
B. The code will output the following: 2 4 1 5 3
C. The code will output the following: 2 1 3 4 5
D. The code will output the following: 2 4 1 3
Answer: B
New Questions 10
Consider the following program code:
@array = (10, Masami, 10..13, Niklas); for ($i = 1; $i < $#array; $i++)
{
print($array[$i] );
}
What is the result of executing this program code?
A. The code will output the following: Masami 10 11 12 13
B. The code will output the following: 10 Masami 10 11 12 13
C. The code will output the following: 10 Masami 11 12 13 Niklas
D. The code will output the following: Masami 10 11 12 13 Niklas
Answer: A
New Questions 11
In Perl, packages are used for which task?
A. To label a program
B. To encrypt a program
C. To create new keywords
D. To define a namespace
Answer: D
New Questions 12
Which one of the following choices lists only valid expression operators?
A. + - ** // B. * ** / // C. ** / ++ % D. */ % -- **
Answer: C
New Questions 13
Consider the following program code:
if ("cool" =~ m/[cool]{4}/)
{
print("True ");
}
else
{
print("False ");
}
if ("cool" =~ m/[col]{4}/)
{
print("True ");
}
else
{
print("False ");
}
What is the output of this code?
A. False False
B. False True
C. True False
D. True True
Answer: D
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