Perl Script

(1, 5, 10) ✘ (10, 5, 1) ✘ (1, 10, 5) ✘ (5, 10, 1) ✔

A scalar value ✘ An expression that can store the result of other expressions ✘ A data space in the memory ✘ None of these ✔

It is a symbolic link used to link a variable to a new name. ✘ It is a symbolic link used to link a file to a new name. ✘ It is a link used to link a file to a variable. ✘ None of these ✔

Die outputs the stderr message on the terminal before exiting, while exit just terminates the program without generating any message. ✘ Die can evaluate expressions before exiting, while exit can generate calls to other functions before exiting. ✘ Both of these ✘ None of these ✔

each ✘ has ✘ exists ✘ bless ✔

slice() ✘ hash(?slice?) ✘ qw() ✘ w() ✔

Perl debugger ✘ Security/Input-checking ✘ Compile the file ✘ Escape character ✔

STDOUT_TOP is the output if $^O is printed on the console. ✘ STDOUT is the output if $^O is printed on the console. ✘ $^O holds the name of the operating system for which the current Perl was built. ✘ Holds the name of the default heading format for the default file handle. ✔

undef ✘ null ✘ nil ✔

cd ✘ chdir ✘ pwd ✘ wd ✔