Technology Questions

The Apache configuration file is called httpd.conf.

The function of PAD (Packet Assembler Disassembler) is described in a document known as X.3. The standard protocol has been defined between the terminal and the PAD, called X.28; another standard protocol exists between hte PAD and the network, called X.29. 

A keyword that specifies that types in a particular nemespace can be referred to without requiring their full qualified type names. 'using' reserved word always come with namespaces. eg. using systems so because of this useful classes supplied by Microsoft which are contained by system namespace are availble for user.

:As these are standard exceptions, they need to be defined in the standard block, So it is defined under namespace std.

AJAX uses four technologies, which are as follows:

       => JavaScript

       => XMLHttpRequest

       => Document Object Model (DOM)

       => Extensible HTML (XHTML) and Cascading Style Sheets (CSS)

Difference between undeclared and undefined variables is defined as

Undeclared variables are those that do not exist in a program and are not declared. If the program tries to read the value of an undeclared variable, then a runtime error is encountered.

Undefined variables are those that are declared in the program but have not been given any value. If the program tries to read the value of an undefined variable, an undefined value is returned.

DispatchAction is an action that comes with Struts 1.1 or later, that let us combine Struts actions into single class, each with their own method. The org.apache.struts.action.DispatchAction class allows multiple operations to map to the different functions in the same Action class.

For e:g; html:hidden property="dispatch" value="error"/>

<SCRIPT>function set(target) {document. forms[0].dispatch. value=target;}</SCRIPT>

- DBRM stands for Database Request Module

- The output of pre-compile process is represented as DBRM

- The SQL statements are extracted from the host language by the pre-compiler