A magnetics tripe or chip card that holds the value of money to offer as a gift by a E - business

Due to the complexity, branch-specific subsets of EDIFACT have developed. These subsets of EDIFACT include only the functions relevant to specific user groups.
Example: CEFIC - Chemical industry
EDIFURN - Furniture industry
EDIGAS - Gas business

A digital signature is a mechanism that is used to verify that a particular digital document, message or transaction is authentic.

Non-repudiation: Repudiation refers to any act of relinquishing responsibility for a message. Non-repudiation ensures that the signer who digitally signed the document cannot deny having signed it. The digitally signed documents strengthen its recipient integrity claims. Therefore, the recipient can strongly insist on the signature of the sender so as not to be easily denied at a later time.

Micro electronic payment	Macro electronic payment
It is an on-line payment system designed to allow efficient and frequent payments of small amounts.	It support payments of higher value.
The security of micro electronic payment system is low.	The security of macro electronic payment systems is more rigorous.
Not an expensive cryptographic operations.	Expensive cryptographic operations.

(i) Dotcom Bubble : The Dotcom Bubble was a historic excessive growth (excessive assumption) of economy that occurred roughly between 1995 and 2000. It was also a period of extreme growth in the usage and adaptation of the Internet as well.
(ii) Dotcom Burst : The Nasdaq-Composite stock market index, fell from 5046.86 to 1114.11, This is infamously, known as the Dotcom Crash or Dotcom Burst. This began on March 11, 2000 and lasted until October 9, 2002.

NS2 is the abbreviation of NETWORK SIMULATOR version 2. It was considered explicitly for exploration in network communication and event-driven open-source simulator in computer.

A network simulator is a software program that replicates the functioning of a computer network.In simulators, the computer network is typically demonstrated with devices, traffic etc. and the performance are evaluated.

Two types of twisted pair cables are Unshielded Twisted Pair (UTP) and Shielded Twisted pair (STP).

1. The RJ45 connector is a small plastic cup used to connect the wire inside the connector and ready to connect the Internet.
2. Each RJ45 connector has eight pins and it has 8-position, 8-contact modular plug, it is also known as 8P8C connector.

1. Twisted Pair Cables is type of cable with two or more insulated wires twisted together.
2. Its speed starts from 10 mbps to 100 mbps.

Zone is a group of contiguous domains and subdomains. If the zone has a single domain, then zone and domain are the same.

(i) www.tn.gov.in
(ii) www.google.com
(iii) www.Quora.com
(iv) www.wikipedia.org

The types of IP address
(i) IPv4 Address and
(ii) IPv6 Address

Internet Protocol (IP) address is simply the logical address in the network layer. IP address is also used to find the host system in the whole network.

i) HTTP - Hypertext Transfer Protocol
ii) HTTPS - Hypertext Transfer Protocol Secure
iii) FTP - File Transfer Protocol

1.The mysqli_connect_error() function returns the error description from the last connection error, if any.
2.Syntax
mysqli_connect_error( );

(i) In computing, a connection string is a string that specifies information about a data source and the means of connected to it.
(ii) It is passed in code to underlying driver or provider in order to initiate the connection.

Types of MYSQL Functions in PHP:
(i) Database Connectíons
(ii) Managing Database
(iii) Performing Queries
(iv) Closing Connection

Syntax:
< input type="file" name="myFile" >

Syntax of while loop
while (condition is true)
{
code to be executed;
}

'for loop' is called as the entry - for check loop. The for loop is used to execute a block of code a specific number of times.

switch (n)
{
case label 1:
code to be executed if n=labeI1;
break;
case label 2:
code to be executed if n=labeI2;
break;
case label 3:
code to be executed if n=labeI3;
break;
...
default:
code to be executed if n is different from all labels;
}

A function is a type of sub routine or procedure in a program. A function will be executed by a call to the function and the function returns any data type values or NULL. value to the called function in the part of respective program.

(i) Variable name must always begin with a \($\) symbol.
(ii) Variable name can not start with a number.
(iii) Variable names are case-sensitive. Eg. \($\)a = 6;