Test your basic knowledge |

Perl Programming

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Assignment of hash variables in perl (when oringally defining the hash)






2. Two ____________ in regular expressions: =~ Contains - !~ Does not contain






3. Split string into an array using spaces as delimeter






4. The use of "if" "if-else" and "if-elsif-else"






5. _________ @arrayName) returns the size of the array






6. Common ________: keys(%hash) - values(%hash) - each(%hash) - delete($hash{keyName}) - exists($hash{keyName}) - reverse(%hash)






7. The two phases of creating a PERL program _______ - Execution






8. Sort and array alphabetically






9. The __________ in perl: - uses grave marks `command args`- returns the output of the command to the variable you specify - if $output = `command arg` the output is stored all in one variable (all lines seperated by n) - if @output = `command arg` the






10. Returns all of the values of the hash as an array






11. _________ $#arrayName give value of last index available in the array. Ex an array of size 5 will have its $#arrayName = 4






12. The two primary methods of executing _______ in perl: - system("command args") - - `command args`






13. The three basic ________ of the open() function: > write - >> append - < read file






14. Returns a copy of the string with the first letter upper case






15. Returns a two element ray of the next key value pair; resultArray[0] is the key resultArray[1] is the value






16. Returns all of the keys of the hash as an array






17. scalar(@arrayName) returns the ______ of the array names






18. ________ in perl - can be scalar array or hash context - tells the interpreter what you are looking for (Ex: "$arrayname[$index_number]")






19. Assignment of a hash variable for a single hash element






20. To write to a filehandle






21. Remove trailing newline from each element in the array






22. Common ________: pop(@array) - push(@array, $new Value) - shift(@array) - unshift(@array, $newValue) - sort(@array) - reverse(@array)






23. Returns the sub string starting at index $startindex and ending after $numchars chars in the string $string






24. Stores information about the current users environment. You can print this from the command line using printenv






25. Delete the hash entry with the key given






26. ________ in perl - A collection of data (static data or scalar variables or arrays or hashes can all be stored in an array element)






27. Add a new element to the from of the array with the value $newwValue






28. Join the elements of the array seperating the elements with the ':' character

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


29. Returns a copy of the string with the first letter lower case






30. eq - ne - lt - le - gt - ge






31. The four types of loops in perl: while - until - for - ________






32. Regular __________: * - 0 or more characters - + - 1 or more characters - ? - 0 or 1 characters






33. Removes the first element of the array shift






34. The open() statement in perl: open(________, file_mode, "filename.txt")






35. In perl the _______ will recognize syntax errors and halt execution BEFORE it begins - and will output statements; it does not understand and the line which it encountered the error on






36. The use of ______ in perl - Documenting code - Created by placing a "#" on a line. - are not multi-line






37. Arrays can be assigned or read in _________






38. In arrays elements need not be __________






39. _________ of scalar variables in perl - using "=" - Ex: $myVariable = 5;






40. To get rid of the ________ in $line you could now chomp() (Ex: chomp($line);)






41. The variable that provides the last index of an array






42. Removes the last element from the array pop






43. Swap keys for values and values for keys. Will cause issues if there are multiple hash entries with the same value






44. Returns a copy of the string as all upper case






45. The purpose of {} in an "if" statement: To Define the __________ of the if statement. Unlike C the {} braces ARE REQUIRED






46. Adds a new element to end of the array with value $newValue






47. Reverses the elements of the array






48. To include modules in perl






49. Modules in perl - Synonymous with header files in C - Collection of ______ and variables that may be used in your program






50. _________ in perl - An associative array







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests