COMPUTER SCIENCE AND ENGINEERING
CLOUD COMPUTING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A minimum of one
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A minimum of two
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A minimum of three
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A minimum of four or more
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Detailed explanation-1: -Regions-21 geographical zones each containing at least three availability zones. Availability zones-66 global zones, which are self-sufficient data centers with redundant power, networking and cooling. Deploying across several AZs can protect your applications and provide you with resiliency in case failures occur.
Detailed explanation-2: -High availability requires at least two availability zones. The idea is that only one zone will go down at a time: the proverbial backhoe cutting power and network cables.
Detailed explanation-3: -Azure availability zones are physically and logically separated datacenters with their own independent power source, network, and cooling. Connected with an extremely low-latency network, they become a building block to delivering high availability applications.
Detailed explanation-4: -Other important benefits from having multi-AZ deployments include: No I/O delays during backups, as backups are taken from the standby instance. No interruptions to I/O when applying patches or performing upgrades for maintenance purposes. Increase in responsiveness when load balancing is used.