Which line of code represents the correct syntax to establish a reference to a database handle?
A. $dbh = DBI::connect("dbi:mysql:myPhoneBook");
B. $dbh = DBD:->connect("dbi::mysql::myPhoneBook");
C. $dbh = DBD::connect("mysql:dbi:myPhoneBook");
D. $dbh = DBI->connect("dbi:mysql:myPhoneBook");
Consider the program code in the attached exhibit.
What is the result of executing this program code?
A. The code will output the following: 20 100 Apple Grapefruit Orange
B. The code will output the following: Apple Grapefruit Orange 20 100
C. The code will output the following: 100 20 Apple Grapefruit Orange
D. The code will output the following: Orange Grapefruit Apple 100 20
Which statement is the most accurate?
A. The push function adds elements to the beginning of an array.
B. The push function removes the first element in an array.
C. The pop function removes the first element in an array.
D. The pop function removes the last element in an array.
Which of the following choices demonstrates the proper way to close a database connection given that $dbh is the database handle?
A. Disconnect=>$dbh;
B. disconnect $dbh;
C. $dbh->disconnect;
D. Close($dbh);
Consider the following program code:
if ("Apple" gt "Pear")
{
print("True ");
}
else { print("False "); } if ("Banana" le "Banana") { print("True "); } else { print("False "); } What is the result of executing this program code?
A. False False
B. False True
C. True False
D. True True
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
Consider the following program code:
$Animal = Dogs bark;
package Cat;
$Animal = Cats purr;
{
package Fish;
$Animal = Fish swim;
}
package main;
print $Animal;
What is the result of executing this program code?
A. The code will fail at line 4.
B. The code will output the following: Dogs bark
C. The code will output the following: Cats purr
D. The code will output the following: Fish swim
Which of the following choices demonstrates the correct syntax to pass the argument $arg2 to the subroutine getpass?
A. getpass($arg2);
B. call andgetpass($arg2);
C. sub andgetpass($arg2);
D. call getpass($arg2);
In Perl, modules are used for which task?
A. To organize packages
B. To provide code reusability
C. To separate code in a file
D. To create separate namespaces
Which of the following describes the functionality of the DBI tables method?
A. The tables method returns a list of all system tables in a database.
B. The tables method returns a list of all user-defined tables in a database.
C. The tables method returns a list of all tables in a database.
D. The tables method returns a list of all related tables in a database.