20 Classic ASP Interview Questions and Answers

Classic ASP, or Active Server Pages, is a Microsoft technology used for creating dynamic and interactive web pages. If you are applying for a position that involves Classic ASP, you should expect to be asked questions about your experience and knowledge during the interview process. In this article, we review some of the most common Classic ASP questions and provide guidance on how to answer them.

Classic ASP Interview Questions and Answers

Here are 20 commonly asked Classic ASP interview questions and answers to prepare you for your interview:

1. What is ASP and what is it used for?

ASP is a server-side scripting language that is used to create dynamic web pages. It is a Microsoft technology, and it stands for Active Server Pages. ASP pages are typically written in VBScript or JScript, and they can include a mix of HTML, CSS, and JavaScript.

2. How does ASP compare with CGI, Java Servlets, Perl scripts, PHP etc.?

ASP is a server-side scripting language, meaning that the code is executed on the server before the page is even loaded in the browser. This is in contrast to languages like JavaScript, which are executed on the client-side. ASP is also unique in that it is closely integrated with the Windows operating system, and as such, can take advantage of features like ActiveX components.

3. What are the advantages of using Active Server Pages?

Active Server Pages (ASP) offer a number of advantages over other web development technologies. First, ASP pages can be created using any text editor, making them easy to develop and deploy. Second, ASP pages are compiled on the server, meaning that they execute faster than other scripting technologies. Finally, ASP pages can access a variety of data sources, making them very versatile.

4. Can you explain how classic ASP compares with .NET in terms of performance?

There is no definitive answer to this question as it depends on a number of factors, including the specific implementation of each technology. In general, however, classic ASP is considered to be slower than .NET, particularly when it comes to processing large amounts of data. .NET also has some built-in caching mechanisms that can help improve performance, while classic ASP does not.

5. What is VBScript? Is there an alternative to VBScript in ASP?

VBScript is a scripting language that is used to create dynamic web pages. It is the default scripting language for Classic ASP. However, there are alternatives to VBScript, such as JavaScript, which can also be used in Classic ASP.

6. Can you explain the differences between server-side and client-side code?

Server-side code is executed on the server and is not visible to the user. Client-side code is executed on the client (usually the user’s browser) and is visible to the user.

7. Can you create a simple web page that displays “Hello World” using ASP?

Yes. The following code would display “Hello World” on a web page:

<%
response.write(“Hello World”)
%>

8. What’s the difference between Response.write() and response.output.write()?

Response.write() is used to write directly to the HTML output stream, while response.output.write() is used to write to a TextStream object. This means that response.output.write() gives you more control over the formatting of the output, while Response.write() is simpler to use.

9. What is the best way to store data in classic ASP applications?

The best way to store data in classic ASP applications is to use a database, such as Microsoft SQL Server. This will allow you to easily query and update the data as needed.

10. How can you include one Classic ASP file into another ASP file?

You can use the #include server-side directive to include one ASP file into another. The #include directive must be followed by the path to the file to be included. For example:

#include “fileToInclude.asp”

11. How do you use the ‘If’ statement to exit a loop in Classic ASP?

You can use the ‘If’ statement to exit a loop in Classic ASP by adding an ‘Exit For’ or ‘Exit Do’ statement within the ‘If’ statement. For example:

Do
If condition then
Exit Do
End If
Loop

12. How do you debug classic ASP applications?

The best way to debug classic ASP applications is to use the Visual Studio debugger. You can set breakpoints in your code and then step through the code line by line to see what is happening. You can also use the debugger to examine variables and watch the flow of execution.

13. What are the different ways in which you can use JavaScript with ASP?

You can use JavaScript with ASP in a number of ways. One way is to use it to validate form data before it is submitted to the server. Another way is to use it to dynamically update the content of a page based on user input. Finally, you can also use it to create interactive features such as drop-down menus.

14. Can you explain some important security features offered by ASP?

ASP offers a number of security features to help keep your website safe. One of the most important is ASP’s built-in authentication, which allows you to specify which users are allowed to access your site and what level of access they have. ASP also offers a number of other security features, such as session tracking and encryption, to help keep your site safe from attack.

15. What are the various components available in ASP?

The various components available in ASP are:
-The ASP engine: This is responsible for processing the ASP code and returning the results to the user.
-The ASP file system: This stores the ASP files on the server.
-The ASP registry: This stores information about the ASP environment on the server.
-The ASP object model: This provides access to the various objects in the ASP environment.

16. Can you name some useful built-in objects in classic ASP?

The built-in objects in classic ASP include the Request object, which allows you to access information sent from the client to the server, and the Response object, which allows you to send information back to the client. Other useful built-in objects include the Session object, which allows you to track information across multiple pages, and the Application object, which allows you to share information across all users of a given application.

17. What are the various types of variables supported by VBScript?

VBScript supports three types of variables:

1. Integer: A whole number between -32,768 and 32,767.
2. Long: A whole number between -2,147,483,648 and 2,147,483,647.
3. Double: A number with a decimal point, between -1.79769313486232E308 and -4.94065645841247E-324 for negative values, and between 4.94065645841247E-324 and 1.79769313486232E308 for positive values.

18. What is ADO and what is it used for?

ADO is a data access technology from Microsoft that is used for accessing and manipulating data in a variety of data sources, including databases. ADO is used by Classic ASP developers to interact with databases in their applications.

19. What are cookies and why should you avoid them when building secure web applications?

Cookies are small pieces of data that are stored on a user’s computer by a web browser. They are often used to store information such as login credentials or preferences for a particular website. However, cookies can also be used to track a user’s movements across the web, which is a major security concern. Additionally, cookies can be stolen by malicious actors in order to gain access to a user’s account on a particular website. For these reasons, it is important to avoid using cookies when building secure web applications.

20. What is Session Tracking and how do you implement it in your web application?

Session tracking is a way to keep track of a user’s activity as they move from page to page on a website. This can be implemented in a number of ways, but the most common is to use cookies. When a user visits a website, a cookie is placed on their computer that contains a unique identifier. As the user moves around the site, this identifier is used to keep track of their activity. This information can then be used for a number of purposes, such as personalizing the user’s experience or targeted advertising.