FUNDAMENTALS OF COMPUTER

DATABASE FUNDAMENTALS

CLOUD COMPUTING AND DATABASES

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

How many Availability Zones should compute resources be provisioned across to achieve high availability?

A	A minimum of one
B	A minimum of two
C	A minimum of three
D	A minimum of four or more

Explanation:

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: -The AWS Cloud spans 99 Availability Zones within 31 geographic regions around the world, with announced plans for 15 more Availability Zones and 5 more AWS Regions in Canada, Israel, Malaysia, New Zealand, and Thailand.

Detailed explanation-3: -Availability Zones consist of one or more discrete data centers, each with redundant power, networking, and connectivity, housed in separate facilities.

Detailed explanation-4: -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.

There is 1 question to complete.