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New CIW 1D0-437 Exam Dumps Collection (Question 5 - Question 14)
Q5. Consider the following lines of code:
sub mySub {
$_ = @_[1];
$a = shift;
$b = shift;
return $a * $b * $_;
}
mySub(1,2,3);
What is the output of these lines of code?
A. No output results from this code.
B. 6
C. 2
D. 4
Answer: A
Q6. Consider the following program code:
$val = 5;
if ($val++ == 6)
{
print("True ");
}
else
{
print("False ");
}
if ($val++ == 6)
{
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: B
Q7. Consider the following command: perl runme.pl arg1 arg2 arg3
Given this command issued on the command line, what is the value of $#ARGV?
A. 0
B. 1
C. 2
D. 3
Answer: C
Q8. Which one of the following choices will replace all occurrences of the word perl with the word Perl?
A. s/Perl/perl/I;
B. s/"perl"/"Perl"/g;
C. s/"perl"/"Perl"/;
D. s/perl/Perl/g;
Answer: D
Q9. Which one of the following statements opens a file for appending?
A. open(PASSWD, ">/etc/passwd");
B. open(PASSWD ">/etc/passwd");
C. open(PASSWD, ">>/etc/passwd");
D. open(PASSWD "+>/etc/passwd");
Answer: C
Q10. Consider the following program code:
@arrayA = (10, 20, 30);
@arrayB = @arrayA;
$arrayB[1] = 40; print $arrayA[1];
What is the output of this code?
A. 10
B. 20
C. 30
D. 40
Answer: B
Q11. Consider the following program code:
$var = 10; package Alpha;
$var = 20;
{
package Beta;
$var = 30;
}
package Gamma;
$var = 40;
{
print $var;
}
What is the output of this code?
A. 10
B. 20
C. 30
D. 40
Answer: D
Q12. Consider the following code:
%chars = ("a", "100", "b", "90", "c", "80");
Which one of the following choices will reverse the key/value pairing of the code?
A. reverse(%chars);
B. %chars = reverse(%chars);
C. reverse(%chars) = %chars;
D. invert(%chars);
Answer: B
Q13. In the context of Perl user-defined subroutines, which statement is the most accurate?
A. Variables declared using the my keyword are global in scope.
B. Variables declared using the local keyword are only available to the subroutine from which they are declared.
C. Variables declared using the my keyword are available to the calling subroutine.
D. Variable declared using the local keyword are available to subsequently called subroutines.
Answer: D
Q14. Consider the following statement:
$buffer = a string;
Also consider that a file named test.txt contains the following 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: $!"); read(OUT, $buffer, 15, 4);
print $buffer;
A. a strOne line of test
B. a stOne line of tes
C. a strOne line of tes
D. a stOne line of test
Answer: B
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