Technology Questions

RegularExpressionValidator checks if entered data matches a specific format

ConstKeyword indicates that memory once initialized, should not be altered by a program.
Volatile keyword indicates that the value in the memory location can be altered even though nothing in the program.
Mutable keyword indicates that particular member of a structure or class can be altered even if a particular structure variable, class, or class member function is constant.

A Monitor defines a lock and condition variables for managing concurrent access to shared data. The monitor uses the lock to ensure that only a single thread inactive in the monitor code at any time.

A monitor allows only one thread to lock an object at once.

Visual Foxpro was part of Visual Studio 6.0.

It was excluded in the .Net version and was released as an independent programming language.

netstat -n  (on Dos prompt)

MainMenu component is a component that allows the display of Menus at runtime on a form.

Process of creating Menu using MainMenu Component:

a. Add MainMenu component on Windows Form.

b. Menu designer allows deciding the structure of the main menu by selecting the Type Here area and adding the Menu Items to be displayed on the menu.

c. Add functionality to Menu Items as required

- Web browser supports HTTP secure method that allows more security for the sites that are involved in day to day basis transaction. 

- Security offers quick and easy way to remove the unwanted material or the things that are stored without permission like cache, cookies and history. 

- Security is being provided by the use of blockers that blocks unwanted access to the websites from the outside. 

- Web browser uses other features like disabling of JavaScript and pop up blockers to block any unwanted scripts or messages to run on the system.

- Web browser also uses the security concerns in regard of blocking the access to the secure sites that provides money transfer facilities, etc.

WDM is conceptually the same as FDM, except that the multiplexing and demultiplexing  involve light signals transmitted through fiber optics channel.