MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

CLOUD COMPUTING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Alicia also mentions that if Kamal wants to have a simple cloud application, then his web application might have problems implementing its backend database. Give at least one reason that the backend database might be a difficult part of Kamal’s elastic cloud application.
A
If the application is read-only with a full copy of all catalogue data in each server, but places an order in the common backend database, the order taking application may update the same inventory records, which could be serialized under a single lock. This database might therefore be limited to the number of updates a single thread can do, limiting the elastic scaling of this application.
B
The application may not need to change the number of servers quickly, so it might use DNS to distribute lists of servers to client machines, so that each client selects a possibly different server. This eliminates a load balancing machine, by doing it in the client
C
Load balancing might be simple enough to do in the network router device coming into the data center, and not need a dedicated machine.
D
none of the mentioned
Explanation: 

Detailed explanation-1: -Security is the backend component of cloud computing, which insurance the security of data in the cloud.

Detailed explanation-2: -Answer» B. You can access your data from any computer in the world, as long as you have an Internet connection.

Detailed explanation-3: -Which of the following is the application of cloud computing? Explanation: Adobe Creative Cloud is used in the art sector. Paypal is an online payment application. Google G Suite is the best storage and backup application used by google.

Detailed explanation-4: -Service-Oriented Architecture (SOA) Service-Oriented Architecture helps to use applications as a service for other applications regardless the type of vendor, product or technology.

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