CIW 1D0-437 問題集

質問 1：
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 2：
The filehandle INPUT is associated with the file represented by $file. Which statement will close the filehandle INPUT?
A. closeINPUT;
B. close (INPUT, $file);
C. INPUT(close, $file);
D. close(INPUT);
正解：D

質問 3：
Which of the following correctly creates a SQL statement that will insert the values of the
$ name and $age variables into a database? The statement is assigned to the $sqlStmt variable. Assume a CHAR data type for $name and an INT data type for $age.
A. $sqlStmt = q{INSERT INTO aTable (NAME, AGE) VALUES ($name\, $age)};
B. $sqlStmt = qq{INSERT INTO aTable (NAME, AGE) VALUES ($name, $age)};
C. $sqlStmt = q{INSERT INTO aTable (NAME, AGE) VALUES ($name, $age)};
D. $sqlStmt = qq{INSERT INTO aTable (NAME, AGE) VALUES (\$name\, $age)};
正解：B

質問 4：
Which one of the following choices is a unary operator that can apply to only a single variable?
A. **
B. <?>?
C. ++
D. /
正解：C

質問 5：
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");
正解：D

質問 6：
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. 2
C. 3
D. 1
正解：B

質問 7：
Which one of the following choices lists only valid expression operators?
A. + - ** //
B. * ** / //
C. */ % -- **
D. ** / ++ %
正解：D