## Netid and HostidNetworking

In classful addressing, an IP address of class A, B and C is divided into netid and hostid. The netid determines the network address while the hostid determines the host connected to that network.

## Network AddressNetworking

The first address of any block is called the network address. It is used to identify the block in the Internet and so it is not assigned to any host on that particular block. Thus a network address has all the hostid bit set to 0.

## Node.js - Create web server using http moduleNode.js

In this tutorial we will learn to create a simple Node.js web server and handle HTTP requests using http module.

## Node.js - Event EmitterNode.js

In this tutorial we will learn about Event Emitter of the Node.js events module.

## Node.js - How to read file in Node.js using fs moduleNode.js

In this tutorial we will learn to read file in Node.js using fs module.

## Node.js - How to write file in Node.js using fs moduleNode.js

In this tutorial we will learn to write data in file in Node.js using fs module.

## Node.js - URL moduleNode.js

In this tutorial we will learn to parse URL using the Node.js url module.

## Number Conversion - Binary Octal HexadecimalConversion

In this number conversion tutorial we are learning to convert number between three commonly used number system, Binary, Octal and Hexadecimal.

## Number SeriesAptitude

A number series is basically a sequence of numbers written in a certain order or pattern. And to solve these kinds of problems we have to find the pattern followed in the sequence.

## Number SystemAptitude

number system is also famously known as the decimal number system. Digits in this system have a face value and a place value.

## Octal to Decimal conversion of a number having fractional partConversion

In this tutorial we will learn octal to decimal conversion for a floating point number i.e., a number with fractional part.

## Octal to Decimal conversion of an integer numberConversion

In this tutorial we will learn octal to decimal conversion of an integer number.

## PartnershipAptitude

Partnership notes and important formula.

## PermutationAptitude

Each of the different ARRANGEMENTS which can be made by taking some or all of the given number of things is called a permutation.

## PHP ArrayPHP

In this tutorial we will learn about arrays in PHP.

## PHP Data TypesPHP

In this tutorial we will learn about PHP data types.

## PHP Decision Making StatementPHP

In this tutorial we will learn about PHP decision making statements - if, elseif, else and switch-case

## PHP FunctionPHP

In this tutorial we will learn about functions in PHP.

## PHP Interview Questions - Set 1PHP Interview Questions

This page contains PHP interview questions and answers.

## PHP Interview Questions - Set 2PHP Interview Questions

This page contains PHP interview questions and answers.