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There are a few benefits to users from the cloud besides giving you peace of mind if you lose your phone.You can access your data anytime,anywhere if you're connected to the internet.And you don't have to worry about using up all of the storage on your hard drive,meaning you might not have to pay as much for a device (設(shè)備) that comes with a ton of storage.
   You've probably heard of the two biggest names in the market,Amazon Web Services,known as AWS,and Microsoft Azure.IBM,Google,and Alibaba are also big players when it comes to providing cloud services.
   Many cloud services are based on a subscription (ITW) pricing model.That means users pay,for example,a monthly fee for cloud services and they can scale up or down as needed.And cloud providers are cashing in.AWS takes up about 12 percent of Amazon's quarterly sales,but it makes more than half of the company's operating income.
   Before we get too excited about the cloud,let's take a step back and look at some of the risks.One obvious concern,if all of our data is online,what happens when the internet goes down?That's what happened in 2013 when an AWS power cut took down Instagram,Vine,and Airbnb.
   Hacker attacks are another big risk with research showing around one-fifth of all files in the cloud contain sensitive data.
   Finally,it can be difficult for consumers and businesses to switch between different cloud companies.I might have a hard time syncing (同步) my iCloud and Google Drive accounts.That can give some big companies that are already making big money on the cloud a lot of power over our data.

(1)Which of the following can replace the underlined word "access" in paragraph 1?
A
A

A.Get.
B.Show.
C.Understand.
D.Enter.
(2)Which of the following provides cloud services?
B
B

A.Instagram.
B.Alibaba.
C.Airbnb.
D.Vine.
(3)What can we learn from the passage?
C
C

A.Cloud providers offer services at their own cost.
B.All the cloud services must be ordered ahead of time
C.AWS gains over 50% of Amazon's operating income.
D.Customers must pay a regular fixed fee for cloud services.
(4)The main idea of the passage is about
D
D
.
A.what the cloud is
B.how the cloud work
C.the advantage over disadvantage of the cloud
D.the advantage and disadvantage of the cloud

【考點】說明文;日常生活
【答案】A;B;C;D
【解答】
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發(fā)布:2024/5/27 14:0:0組卷:6引用:1難度:0.5
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    發(fā)布:2024/11/12 16:0:1組卷:5引用:5難度:0.5
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    發(fā)布:2024/11/13 2:30:1組卷:11引用:2難度:0.5
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    發(fā)布:2024/11/12 9:30:1組卷:10引用:2難度:0.7
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