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. Removes the last element from the array pop






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






3. Remove trailing newline from each element in the array






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






5. < - > - == - <= - >= - !=






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






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






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






9. Returns the length of the string including escape sequences






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






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






12. Regular ____________: w - alphanumeric word including underscor - d - digits 0-9 - s any whitespace - . - any character






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






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






15. Does the hash key with "keyName" exists






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






17. Returns a copy of the string as all lower case






18. Assignment of hash variables in perl (when oringally defining the hash)






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






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






21. 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






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






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






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






25. The _______ in perl: - used to execute an external command - will output results of command to terminal - returns the exit status of the program that ran - use this for commands that you dont care about SAVING the output to a variable






26. Explain how to read a line from a file handle






27. $#arrayName returns the value of the ______ of the array (NOT the data stored in that array element)






28. Delete the hash entry with the key given






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






30. 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


31. Common ___________: substr($string, $start, $numchars); - length($string) - lc($string) - uc($string) - chomp($string) - chomp(@string) - join(':", @string) - split(/\s/, $string) - lcfirst($string) - ucfirst($string)






32. Sort and array alphabetically






33. 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






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






35. Removes trailing newline






36. Split string into an array using spaces as delimeter






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






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






39. Reverses the elements of the array






40. Arrays can be assigned or read in _________






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






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






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






44. _________ in perl - Singular variable - starts with "$" - Number or characer or string- Perl does automatic type conversion of these






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






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






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






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






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






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







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