1D0-437 Exam Questions

Consider the following command: perl1 runme.pl arg1 arg2 arg3 Given this command issued on the command line, what is the value of $#ARGV?

Consider the following code: $_ = "New York"; @array2 = split(//); What is the value of $array2[0] after the code is executed?

Consider the following program code: $y - "1"; $x = "2"; $z = "3"; do { print ("$y "); } while ($y eq "2"); do { print ("$x "); } until ($x eq "2"); print ("$z "); What is the resu...

Consider the following program code: %hash = ("small" -> "Boz", "medium" => "16oz", "large" => "32oz"); @keys = sort(keys(%hash)); for ($i = 0; $i < 3; $i++) { print("$hash{$keys[$...

Which of the following choices demonstrates the correct syntax to pass a reference to a subroutine?

Consider the following program code: $x - 0; $y = 5; do { print ("$x $y "); ) while (++$x < 5 && ++$y < 10); print ("$x $y "); What is the result of executing this program code?

Consider the following statement: @array1 = (9, "A", 0..9, "PERL"); Given this statement, @array1 consists of how many elements?

Consider the following program code: %_Nifty = (one, two, three, four); @NiftyKeys = sort(keys(%_Nifty)); foreach(@NiftyKeys) { print ($_Nifty{$_} . ); } What is the result of exec...

Consider the following program code: @list - (10..15); foreach(@list) { print("$_ "); } What is the result of executing this program code?

In Perl, modules are used for which task?

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 re...

Which statement will print the capital attribute of the $kansas object?

Consider the program code in the attached exhibit. What is the result of executing this program code?

Which statement will open the /etc/passwd file for reading only?

Consider the following expression $modresult - 33 % 11; What is the value of $modresult in the expression?

Consider the following program code: @array - (1..5); print(shift(@array) . " "); print(shift(@array) . " "); print(pop(@array) . " "); print(pop(@array( . " "); push(@array, "SIX"...

Which one of the following statements uses correct syntax and expressions?

Which one of the following choices will replace all occurrences of the word perl with the word Perl?

Consider the following program code: package Dog; $string = "Walk the dog."; if($string eq "Walk the dog.") { package Cat; $string = "Pet the cat."; print("$string\n"); } print ("$...

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...

Consider the following program code: %hash = (small => 8oz, medium => 16oz, large => 32oz); @keys = sort(keys(%hash)); for ($i = 0; $i < 3; $i++) { print($hash{$keys[$i]}\n); } Wha...

Consider the following program code: $y=l; $x = 2; $z = 3; do { print ($y); } while ($y eq 2); do { print ($x); } until ($x eq 2); print ($z); What is the result of executing this...

Assume $sth is a valid statement handle. Which of the following correctly outputs the data from the first three columns of a result set?

Consider that a file named test.txt contains this line of text: $file = "test.txt"; open (OUT, "<$file") || (die "cannot open $file: $!"); seek(OUT, 15,0); read(OUT,$buffer, 5); pr...

Which of the following choices demonstrates the proper way to close a database connection given that$dbh is the database handle?

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 th...

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

Consider the following lines of code: $_ = "This is a test"; s/^([^ ]*)\s*([^ ]*)/$2 $1/; print; What is the output of these lines of code?

Which statement is the most accurate?

Which of the following is a valid subroutine name?

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?

Which statement writes data to the filehandle OUTPUT?

Which one of the following choices lists valid assertions that represent places within a string?

Which one of the following statements opens a file for appending?

Which keyword indicates an object reference rather than a variable reference?

Which Perl debugger commands can be used to step through a script?

Consider the following lines of code: sub mySub {( $arg,@args) = @_; foreach $val (@args) { SreturnVal .= "$arg, $val\n"; } SreturnVal."". @args; } print SmySub(1 "a value", "anoth...

Consider the following code: @cities = qw( Pittsburgh Atlanta Nashville Boston ); $city = join (":", @cities); What is the value of $city after the code is executed?

Which one of the following choices lists only valid expression operators?

Consider the program code in the attached exhibit. What is the result of executing this program code?

Consider the following program code: @array = ("Y","W"1"X"); ''rray = sort(@ array); unshift(@array, "Z"); print(@array[0]); What is the output of this code?

The values function performs which task?

Which of the following choices demonstrates the correct syntax for creating a hash?

Which one of the following choices will assign the current package Library1?

Regular expressions are best used for which task?

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

Consider the following program code: if ("cool" =~ m/[cool]{4}/) { print("True "); } else { print("False "); } if ("cool" =~ m/[col]{4}/) { print("True "); } else { print("False ")...

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?

Consider the following program code: $i - "15"; LOOP for(; $i < 25; $i++) { if ($i % 2) { next LOOP; } print("$i "); } What is the result of executing this program code?

Which of the following choices demonstrates the correct syntax to pass the argument $arg2 to the subroutine getpass?