CGI Perl Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

CGI Perl Interview Questions

Questions Answers Views Company eMail

how to connect cisco switch uisng perl script

ABC,

3901

Assuming both a local($var) and a my($var) exist, what's the difference between ${var} and ${"var"}?

1044

If EXPR is an arbitrary expression, what is the difference between $Foo::{EXPR} and *{"Foo::".EXPR}?

1094

Perl uses single or double quotes to surround a zero or more characters. Are the single(' ') or double quotes (" ") identical?

973

What does `$result = f() .. g()' really return?

1301

What does `new $cur->{LINK}' do? (Assume the current package has no new() function of its own.)

991

What happens to objects lost in "unreachable" memory, such as the object returned by Ob->new() in `{ my $ap; $ap = [ Ob->new(), $ap ]; }' ?

1047

What's the difference between /^Foo/s and /^Foo/?

1268

When would `local $_' in a function ruin your day?

1003

Why aren't Perl's patterns regular expressions?

1256

Why is it hard to call this function: sub y { "because" } ?

1017

How do I replace every character in a file with a comma?

1048

Which of these is a difference between Perl and C++ ?

1088

How do I sort a hash by the hash value?

979

How do I sort a hash by the hash key?

974

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Un-Answered Questions { CGI Perl }

How to read from a pipeline with Perl

1106

What do you mean by context of a subroutine?

1030

What does undef function in perl?

1007

Explain use of ‘my’ keyword in perl?

985

Which of these is a difference between Perl and C++ ?

1088

Explain gmtime() function in perl?

1025

How to connect to SQL server through Perl?

1120

Write a program to decode the data in the form using cgi programming

1100

How to turn on Perl warnings? Why is that important?

1149

Explain what is lvalue?

1074

How to create a directory in perl?

1134

What is the usage of -i and 0s options?

1067

How do you set environment variables in perl?

1110

Explain goto label, goto name, and goto expr?

975

You want to add two arrays together. How would you do that?

944

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