Computers can only recognize（)signals.A、analogB、infrared rayC、lightD、digital

d like for all of the computers to have access to the Internet at the same time, but TestKing only has four usable publicly routable IP addresses.What should be configured on the router so that all computers can connect to the Internet simultaneously？（）

A. Static NAT

B. Global NAT

C. Dynamic NAT

D. Static NAT with ACLs

E. Dynamic NAT with overload

When can students use the computers？

A．Only during school time

B．On weekends only

C．At lunch break

D．Anytime they wish

Which of the following is NOT true？ ______.

A．Computers perform. not only data processing function in business, but also are used as tools in

B．Problem-solving and decision-making

C．In performing certain data processing tasks, computers can process information more efficiently and effectively than humans

D．A company or individual must buy a computer system in order to be able to use one

Which one of these statements about connecting to the Internet is true？______

A．The Internet can only be used to link computers with same operating system

B．The Internet can be used to connect computers with different ISP

C．You must have a modem to connect to the Internet

D．You must have a telephone line to connect to the Internet

●Which one of these statements about connecting to the Internet is true？ (68) .

(68) A．The Internet can only be used to link computers with same operating system

B．The Internet can be used to connect computers with different ISP

C．You must have a telephone line to connect to the Internet

D．You must have a modem to connect to the Internet

A．small companies did not have enough money to buy such expensive computers

B．large computers could not do the work that small companies can do today

C．large computers did not come onto the market

D．small companies did not need to use this new technology

Which one of these statements about connecting to the Internet is true？(76)

A．You must have a modem to connect to the Internet

B．You must have a telephone line to connect to the Internet

C．The Internet can be used to connect computers with different ISP

D．The Internet can only be used to link computers with same operating system

hat runs windows server 2008 all client computers run windows vista. All computers are members of the active directory domain. You assign the secure server (Require Security) IPsec policy to server1 by using a GPO. Users report that they fail to connect to server1. You need to ensure that users can connect to server1. All connections to server1 must be encrypted. What should you do？（）

A.Restart the IPsec policy agent service on server1.

B.Assign the client (Respond only ) IPsec policy to Server1.

C.Assign the server (Request Security) ipsec policy to server1.

D.Assign the client (Respond Only) IPsec policy to all client computes.

1】, the term usually refers【2】an electronic device that can【3】a series of tasks according to a set of instructions.

In 1953 there were only about 100 computers【4】use in the world. Today hundreds of millions of computers are【5】in homes, schools, businesses, government offices, and universities for almost every conceivable【6】.

Modern desktop【7】computers, or PCs, are many times more powerful than the huge, million dollar【8】of computers of the 1960s and 1970s. Most PCs can perform. from 400 million to several billion operations per second. These computers are used not【9】for household management and personal entertainment, but also for most or the automated【10】required by small business. The fastest desktop computers are called workstations, and they are generally used for scientific, engineering, or advanced business application.

(1)