Independent server clusters share storage through high-speed network storage in-

CLOUD COMPUTING

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	Shared memory architecture
B	Shared nothing architecture
C	Shared disk architecture
D	None of the above

Explanation:

Detailed explanation-1: -Shared-disk has a number of advantages: lower cost, good extensibility, availability, load balancing, and easy migration from centralized systems. The cost of the interconnection network is significantly less than with shared-memory since standard bus technology may be used between processor nodes.

Detailed explanation-2: -The basic problem with the shared disk model is interface because more CPUs are added. Existing CPU’s are slowed down because of increased contention for memory access in network bandwidth.

Detailed explanation-3: -A shared-disk architecture (SD) is a distributed computing architecture in which the nodes share same disk devices but each node has its own private memory. The disks have active nodes which all share memory in case of any failures. In this architecture the disks are accessible from all the cluster nodes.

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EMERGING TRENDS IN COMPUTING

CLOUD COMPUTING