CIW 1D0-437 問題集

質問 1：
Consider the following program code:
@array = ("one", "two");
push(@array, "three");
shift(@array);
unshift(@array, "four");
pop(@array);
print($array[0]);
What is the output of this code?
A. four
B. three
C. two
D. one
正解：A

質問 2：
The values function performs which task?
A. Generates a list of hash keys
B. Returns the number of key/value pairs
C. Generates a list of hash values
D. Reads the hash values into an array
正解：C

質問 3：
Which statement writes data to the filehandle OUTPUT?
A. print "Here's my data.\n" > OUTPUT
B. write OUTPUT ">Here's my data.\n";
C. print OUTPUT "Here's my data.\n";
D. write OUTPUT "Here's my data.\n";
正解：C

質問 4：
Which of the following choices demonstrates the correct syntax to pass a reference to a subroutine?
A. \@array4;
B. getpass{@array4};
C. @array4($ref);
D. getpass(\@array4);
正解：D

質問 5：
Consider the following code block:
BEGIN {print ("Jan ");}
BEGIN {print ("Feb ");}
END {print ("Mar ");}
END {print ("Apr ");}
Print ("May ");
What is the result of this code block?
A. May Jan Feb Mar Apr
B. Jan Feb May Apr Mar
C. Mar Apr May Jan Feb
D. Jan Feb Mar Apr May
正解：B

質問 6：
Consider the following program code:
$x = 150;
$y = "250";
if (($x + 100) == $y) { print("1 "); }
if ("250" == $y) { print("2 "); }
if ("250" eq $y) { print("3 "); }
if ($x lt $y) { print("4 "); }
if ($x ge $y) { print("5 "); }
What is the result of executing this program code?
A. The code will output the following:
1 3 4
B. The code will output the following:
1 2 3 4 5
C. The code will output the following:
1 3 5
D. The code will output the following:
1 2 3 4
正解：D

質問 7：
Consider the following program code:
@ array = ("Y", "W", "X");
@ array = sort(@array);
unshift(@array, "Z");
print(@array[0]);
What is the output of this code?
A. Z
B. W
C. Y
D. X
正解：A