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

CGI Perl Interview Questions

Questions Answers Views Company eMail

What is the difference between for & foreach, exec & system?

Photon, Wipro,

9 34743

Name an instance where you used a CPAN module?

IBM, TCS,

3 11087

How do you open a file for writing?

6 11903

How would you replace a char in string and how do you store the number of replacements?

2 12946

When would you not use Perl for a project?

IBM,

1 10396

What is a hash?

Photon, Satyam, Wipro,

6 13865

What is the difference between chop & chomp functions in perl?

Cap Gemini, DELL, Electronic Data, TCS,

10 45353

Write a script for 'count the no.of digits using regular expressions in perl..

AppLabs,

6 15664

i have a folder called 'error' and in that, i have error log files which are generated by the build, now i want to findout the string 'error' from each log file and that error has to be copied into the another file called 'analysis'. how do you do this in perl?

HP,

5 9800

Can any1 tell me 2 write the script using perl script 2 looking at a log file 2 see wheather the test has passed or not.

TCS,

3 7600

What is the difference between module and package?

EDS, IBM, Symantec,

4 29680

How can you create an object of a class in a package?

IBM,

4 8737

what is the procedure to define a user define module in your perl application?

IBM,

2 6490

How would you trap error occurred in the perl program/file?

IBM,

3 10236

what r the different type of function in perl ???

ABC, Symphony,

1 6987

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Un-Answered Questions { CGI Perl }

How to implement a stack in Perl?

956

What are the various file operations in perl. Explain with example.

891

How to connect to SQL server through Perl?

989

How to replace perl array elements?

904

“The methods defined in the parent class will always override the methods defined in the base class”. What does this statement means?

960

What are some common methods to all handles in perl?

889

How many data types are there in perl?

914

How do I generate a list of all .html files in a directory?

906

What does -> symbol indicates in Perl?

924

What is the difference between localtime() and gmtime() functions?

968

Why does Perl not have overloaded functions?

981

You want to concatenate strings with perl. How would you do that?

825

What are numeric operators in perl?

907

Explain perl. When do you use perl for programming? What are the advantages of programming in perl?

832

What is warn function in perl?

902

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