EMERGING TRENDS IN COMPUTING
CLOUD COMPUTING
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
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.
|
|
|
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
|
|
|
Load balancing might be simple enough to do in the network router device coming into the data center, and not need a dedicated machine.
|
|
|
none of the mentioned
|
Detailed explanation-1: -Which of the following is the correct statement about cloud computing? Explanation: Abstraction and Virtualization are the two essential concepts.
Detailed explanation-2: -2) Which one of the following options can be considered as the Cloud? Explanation: Whenever any intranet becomes large enough in size that a diagram is not able to differentiate the individual physical system, so at that stage intranet also becomes known as a cloud. Hadoop can be considered as a cloud.
Detailed explanation-3: -Answer: The statement that is true regarding the ability to scale cloud computing resources up and down is that CPU, memory, and storage resources are elastic. Elasticity is one of the key features of cloud computing that allows users to scale their resources up or down based on their changing needs.