Technology Questions

Q:

How can you have different number of cells for each row of a table?

Answer

By setting the columnSpan property for cells of each row as required.

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0 2005
Q:

How does traffic measured in hosting platform?

Answer

- The traffic can be measured using the size of the files that are transferred from one place to another (server-client). 


- It can also be measured by the size of the file that is being requested by the client from the server. 


- The number of visitors arriving on the website also involve in the measurement of the traffic using the web hosting platform. 


- The advertisements of the sites take more bandwidth to allow more number of users to be on the website. 


- More number of users provides higher traffic on the website thus it requires more bandwidth on the web hosting sites.

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Subject: Web Technology

0 2004
Q:

What are the principles in providing the security for the computer programs?

Answer

- The principle of least privilege is used to provide more security to the computer programs. 


- The principle allows the designing of the program such that any unauthorized access is not allowed and only the person who owns the program will be able to access it. 


- The services provided should be able to access only those products that need the services. 


- Web servers that are involved in responding the queries of the web users provide only accessing to the HTML files that will serve the purpose of the programs. 


- Computer programs should be made such that it provides secure features of logging into the program with proper authentication.

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Subject: Web Technology

0 2004
Q:

What are the 3main tasks of JVM?

Answer

The JVM performs three main tasks:


• Loads code


• Verifies code


• Executes code

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Subject: Java

0 2003
Q:

Write a program to fix the error being produced by the Infinite file?

Answer

- The infinite file error can be solved when the data will be read continuously from the file. 


- The error can be solved by using the keys that provide only the resources that are required. 


- The following program is as follows:


osw.write ("HTTP/1.0 200 OK\n\n"); 


while (c != -1) { 


sb.append((char)c); 


c = fr.read(); 



osw.write (sb.toString()); 


- This converts the requested file in such a way that if the file exists it shows the messages as ok otherwise it shows an error.


- Limited file access is to be given to the file to remove the error from the infinite file type.

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Subject: Web Technology

0 2002
Q:

What is the use of FOR XML in SQL Server?

Answer

SQL Server is having a fantastic feature to retrieve data persisted in the form of XML format. The data in the XML format can be retrieved using FOR XML clause appending to the SELECT statement.


It offers 3 modes.


- “FOR XML AUTO": Returns XML elements that are nested, based on which tables are listed in the "from" part of the query, and which fields are listed in the "select" part.


- "FOR XML RAW": Returns XML elements with the "row" prefix (ex: ""). Each column in a table is represented as an attribute and null column values aren't included.


- "FOR XML EXPLICIT": Explicit mode is the most complex shaping method used in SQL Server 2000. It allows users to query a data source in such a way that the names and values of the returned XML are specified before the query batch is executed. 

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Subject: Web Technology

0 1999
Q:

What is the security mechanism used in java?

Answer

Java uses sand box security model.

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Subject: Java

0 1999
Q:

What are meta tags used for?

Answer

-To store information usually relevant to browsers and search engines.


-To only store information usually relevant to browsers


-To only store information about search engines.


-To store information about external links

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0 1997