The Internet is an open system, and most information is available to everyone．It is very important to add ______ to existing system for protecting the secret information.A．Web pagesB．modemC．securityD．network
The Internet is an open system, and most information is available to everyone．It is very important to add ______ to existing system for protecting the secret information.
A．Web pages
B．modem
C．security
D．network
相关考题：
—Could I borrow your English Dictionary? — A. Thank you very much.B. No, I am not available.C. I’m sorry. It’s not at hand now.D. It’s very kind of you.
● The Internet is an open system, and most information is available to everyone. It is very important to add (74) to existing system for protecting the secret information.(74)A. Web pagesB. modemC. securityD. network
－I think the Internet is very helpful.－_________________. A.Yes,so do IB.It’s a very good ideaC.Neither do ID.I’d rather go surfing on it
The Internet is an open system, and most information is available to everyone. It is very important to add ______ to existing system for protecting the secret information.A．web pagesB．modemC．securityD．NetworkA．B．C．D．
The Internet is an open system，and most information is available to everyone．It is very important to add(74)to existing system for protecting the secret information．A．Web pagesB．modemC．securityD．network
Most of the host operating system provides a way for a system administrator to manually configure the IP information needed by a host .Automated configuration methods such as ______, are required to solve the problem.A．IPsecB．DHCPC．PPTPD．SOAP
Most of the host operating system provides a way for a system administrator to manually configure the IP information needed by a host. Automated configuration methods, such as （）, are required to solve the problem.A.IPSecB.DHCPC.PPTPD.SOAP
For any information system to serve its purpose, the information must be( )when it is needed.A.integralB.available C.irreplaceable D.confidential
共用题干第三篇Internet ShoppingInternet shopping is a new way of shopping. Nowadays,you can shop for just about anything from your armchair. All you need is a computer which is linked to the Internet. Shopping on the Internet is becoming increasingly popular. In the United States,people spent over U.S. $2.5 billion on Internet shopping in 1998.This figure is expected to reach U.S.$11 billion by the year 2004.People can shop for a variety of products on the Internet.Physical products include items such as books,CDs,clothes and foods.These types of products are the most common purchases through the Internet.You can also buy information products such as on-line news or magazine stories,or you can download computer software through the Internet.Services such as booking airline tickets,reser-ving hotels or renting cars are also available on the Internet.You can also go shopping on the Inter-net for entertainment services and take part in on-line games.Internet shopping offers a number of benefits for the shopper. The most important advantage is convenience.You can shop whenever you like as the on-line shops are open 24 hours a day and you don't have to queue with other shoppers at the check-out counters.Secondly,it is easy to find what you are looking for on the Internet.Even out-of-print books may be ordered on line.Finally,it is often cheaper to buy goods through the Internet,and you can tell the shop exactly what you want.The main disadvantage of Internet shopping is that you cannot actually see the products you are buying or check their quality.Also,many people enjoy shopping in the city and miss the opportunity to talk to friends.Some people are worried about paying for goods using credit cards,so Internet companies are now finding ways to make on-line payment safe.Internet shopping is sure to become more and more popular in the years ahead.It promises to change the way we buy all kinds of things一from tonight's dinner to a new car.On-line news and magazine stories are________.A:the most popular products on the InternetB:not yet available on the InternetC:free to download through the InternetD:Information products available on the Internet
共用题干第三篇Internet shopping is a new way of shopping. Nowadays,you can shop for just about anything from your armchair. All you need is a computer which is linked to the Internet. Shopping on the Internet is becoming increasingly popular. In the United States,people spent over$2.5 billion on Internet shopping in 1998.This figure is expected to reach $11 billion by the year 2004.People can shop for a variety of products on the Internet. Physical products include items such as books,CDs,clothes and food.These types of products are the most common purchases through the Internet. You can also buy information products such as on-line news or magazine stories,or you can download computer software through the Internet. Services such as booking airline tickets,reserving hotels or renting cars are also available on the Internet. You can also go shopping on the Internet for entertainment services and take part in on-line games.Internet shopping offers a number of benefits for the shopper. The most important advantage is convenience.You can shop whenever you like as the on-line shops are open 24 hours a day and you don't have to queue with other shoppers at the check-out counters.Secondly,it is easy to find what you are looking for on the Internet. Even out-of-print books may be ordered on line.Finally,it is often cheaper to buy goods through the Internet,and you can tell the shop exactly what you want.The main disadvantage of Internet shopping is that you cannot actually see the products you are buying or check their quality.Also,many people enjoy shopping in the city and miss the opportunity to talk to friends.Some people are worried about paying for goods using credit cards,so Internet companies are now finding ways to make on-line payment safe.Internet shopping is sure to become more and more popular in the years ahead.It promises to change the way we buy all kinds of things一from tonight's dinner to a new car.On-line news and magazine stories are_______.A:the most popular products on the InternetB:not yet available on the InternetC:free to download through the InternetD:information products available on the Internet
--Could I borrow your CD of English songs? --（）ANo,I am not available.BThank you very much.CI’m sorry.It’s not at hand now.DIt’s very kind of you.
I think the Internet is very helpful. --（）AYes, so do I .BThat’s a very good ideaCNeither do IDI’d rather go surfing on it
The computer system（）suddenly while he was searching for information on the Internet.Abroke downBbroke outCbroke upDbroke in
I think the Internet is very helpful.（）A、Yes, so do IB、That‘s a very good ideaC、Neither do ID、I‘d rather go surfing on it
-- I think the Internet is very helpful.--（）A、Yes, so do IB、That’s a very good ideaC、Neither do I
I think the Internet is very helpful. --（）A、Yes, so do I .B、That’s a very good ideaC、Neither do ID、I’d rather go surfing on it
Rate your level of proficiency with implementing， managing， and troubleshooting network protocols and services， including TCP/IP protocol， dial-up networking， Internet Information Services （IIS）， remote desktop， and Internet connection firewalls.（）A、Very HighB、HighC、ModerateD、LowE、Very Low
在网络体系结构中，OSI表示（）A、Open System InterconnectionB、Open System InformationC、Operating System InterconnectionD、Operating System Information
What is the FIRST and most important step in system troubleshooting？（）A、back up the system dataB、gather information about the problemC、try rebooting the system to see if that fixes the problemD、check the System Error Log or Event Log
You are using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2 to perform a virtual-to-virtual （V2V） conversion. You need to place the virtual machine （VM） on the host server that has the most available disk I/O. Which two actions should you perform？（）A、Set the placement goal to Load balancing.B、Set the placement goal to Resource maximization.C、Set the resource importance of the disk I/O to Very Important.D、Set the maximum disk I/O per second for the host reserves to 10000.
单选题Customer: ______ if you'd serve me as quickly as possible as I've got an appointment at two fifteen. Waiter: I'll do my best, Madam.AIt would be very kind of youBIt would be very helpfulCI'd be most delightfulDI'd be most grateful
单选题The computer system（）suddenly while he was searching for information on the Internet.Abroke downBbroke outCbroke upDbroke in
单选题Which of the following Internet connection types would have the MOST available bandwidth andhighest transmission speed?（）ADSLBDial-upCCableDSatellite
单选题-- I think the Internet is very helpful.--（）AYes, so do IBThat’s a very good ideaCNeither do I
单选题I think the Internet is very helpful. --（）AYes, so do I .BThat’s a very good ideaCNeither do IDI’d rather go surfing on it