Perl Online Quiz

Q 1 - Which of the following correctly describes Array data types in Perl?

A - These are simple variables. They are preceded by a dollar sign ($).

B - These are ordered lists of scalars that you access with a numeric index which starts with 0.

C - These are unordered sets of key/value pairs that you access using the keys as subscripts.

D - None of the above.

Q 2 - Which of the following data types are preceded by a percent sign (%) in Perl?

A - Scalar

B - Array

C - Hashes

D - All of the above.

Q 3 - Which of the following method joins the separate strings of LIST into a single string with fields separated by the value of EXPR, and returns the string?

A - splice EXPR, LIST

B - split EXPR, LIST

C - join EXPR, LIST

D - sort EXPR, LIST

Q 4 - How will you delete a key/value pair to a hash?

A - Using simple assignment

B - using delete function

C - Both of the above.

D - None of the above.

Q 5 - Which of the following statement substitutes a call to the named subroutine for the currently running subroutine?

A - goto LABEL

B - goto EXPR

C - goto &NAME

D - None of the above.

Q 6 - Which of the following operator returns true if the left argument is stringwise less than or equal to the right argument?

A - lt

B - gt

C - le

D - ge

Q 7 - Which of the following operator encloses a string with-in invert quotes?

A - q{ }

B - qq{ }

C - qx{ }

D - enclose{}

Q 8 - Which of the following function returns epoch time?

A - localtime

B - gmtime

C - time

D - strftime

Q 9 - Which of the following function opens a file in read-only mode?

A - open(DATA, "<file.txt");

B - open(DATA, ">file.txt");

C - open(DATA, "+>file.txt");

D - None of the above.

Q 10 - Which of the following function returns a single character from the specified FILEHANDLE, or STDIN if none is specified?

A - close

B - getc

C - seek

D - None of the above.