1D0-437 Online Practice Questions and Answers

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

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

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

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);

Which of the following accurately describes the roles of the Database Interface Module (DBI) and the Database Driver Module (DBD)?

A. DBI transmits instructions to a database; DBD directs method calls to DBI.

B. DBD transmits instructions to a database; DBI directs method calls to DBD.

C. DBI makes available database-specific code; DBD transmits method calls to DBI.

D. DBD makes available database-specific code; DBI translates method calls to DBD.

Consider the following program code:

@array = ("ALPHA", "beta", "GaMmA");

@array = sort(@array);

print("@array");

What is the output of this code?

A. beta GaMmA ALPHA

B. ALPHA GaMmA beta

C. ALPHA beta GaMmA

D. beta ALPHA GaMmA

Consider the program code in the attached exhibit.

What is the result of executing this program code?

A. The code will output the following: 3 4

B. The code will output the following: 1 2 3 4

C. The code will output the following: 1 2 4 5

D. The code will output the following: 1 2 5

Consider the following statement:

@array1 = (9, "A", 0..9, "PERL");

Given this statement, @array1 consists of how many elements?

B. 4

C. 12

D. 16

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

Running your Perl scripts with a d switch will perform which task?

A. Invoke the Perl debugger

B. Send standard error to a file

C. Disable breakpoints

D. Display a stack trace