电子商务(英文精编版)考试重点

电子商务考试重点：

①Categories of Electronic Commerce电商的分类

1.business to consumer (B2C).

2. business to business (B2B).

3.business processes that support buying and selling activities，比例最大

4.consumer to consumer(C2C)

5.business to government(B2G).

Electronic Founds Transfer (EFTs)分五类

②电商的适用性由什么因素决定(suited to ec)：1.selling of commodity items.2.product 's shipping profile.3.A product that has a Strong brand reputation4.business process includes both commodity and personal inspection elements.

③电商的优点（advantages）：

1. It can increase sales and decrease costs.

2.Increase purchase opportunities for the buyers .

3.electronic commerce provides buyers with a wider range of choices,that buyers can consider many different products and services from a wider variety of sellers.

4.many digital products can be delivered through the Internet.reduces the time buyers wait to begin enjoying their porchases.

5.electronic payments of tax refunds,pulic retirement and welfare support cost less to issue and arrive securely and quickly when transmitted over the Internet.

电商的缺点：

1、Some business process may never lend to themselves to EC .

2、Many products and services require that a critical mass of potential buyers be equipped and willing to buy through the Internet .

3、Business often calculate return-on-investment numbers before committing to any new technology.

4、Want to do business on the Internet is the difficulty of integating existing databases and transaction-processing software designed for traditional commerce into the software that enables EC.

5、many businesses face cultural and legal obstacles to conducting EC.

activity from markets to hierarchically structured firms组织方式转变的原因是交易成本7:包交换的运作：on a packet-switched network, files and e-mail messages are broken down into small pieces, called packets, that are labeled electronically with origins, sequences, and destination addresses, packets travel from computer to computer along the interconnected networks until they reach their destinations. And the packets may arrive out of order. The destination computer collects the packets and reassembles the original file or e-mail messages from the pieces in each packets. 8:Ipv4:32bit binary number Ipv6:128

The number of available addresses in Ipv6 is 34 follows by 37 zeros-billion of times larger than the address space of Ipv4.

9:四种标记语言时间顺序：

SGML（standard generalized makeup language 1986）

HTML(hypertext makeup language1991)

XML(extensible makeup language1998)

XHTML(extensible hypertext makeup language2000)

10:填空：organization structures of web page（网页组织结构）：linear structure ; hierarchical structure; hybrid structure.

11:VPN的运作：`a virtual private network is an extranet that uses public network and there protocol to send sensitive date to partners, customers, suppliers, and employees using a system called IP tunneling or encapsulation. IP tunneling effectively creates a private passageway through the public internet that provides secure transmission from one computer to another. The virtual passageway is created by VPN software that encrypts the packet content and then place the encrypted packets inside another packet in a process called encapsulation , the outer packets is called an IP wrapper. The web server sends the encapsulated packets to their destination over the internet, the computer that receives the packet unwraps it and decrypts the message using VPN software that is same as ,or compatible with, the VPN software used to encrypt and encapsulate the packets at the sending end.

(packet----encrypt ----encapsulate----unwrap----decrypt )

12:bandwidth connection types（带宽链接类型）:

symmetric connection(对称), asymmetric connection

13:Broadband（宽带）: asymmetric digital subscriber line(ADSL)

High-speed DSL(more than 768 kbps of symmetric broadband)

14:revenue models（盈利模型）: