AZ-900 Azure Monitoring and Service Level Agreements

Question 1

What is a Service Level Agreement (SLA) in the context of Azure?

Accepted Answer

Microsoft's commitment to uptime and connectivity percentages for Azure services

Answer

An Azure SLA defines the minimum uptime and connectivity guarantees Microsoft commits to for each service, expressed as a percentage like 99.9% or 99.99%.

Question 2

What uptime percentage does an SLA of 99.9% allow per month in downtime?

Accepted Answer

About 43 minutes

Answer

A 99.9% SLA means 0.1% downtime per month, which equals approximately 43.8 minutes of allowable downtime per 30-day month.

Question 3

How can you increase the effective SLA for an Azure VM deployment above the standard single-VM SLA?

Accepted Answer

By deploying VMs across Availability Zones or in an Availability Set

Answer

Deploying two or more VMs in an Availability Set or across Availability Zones raises the composite SLA to 99.99% by eliminating single points of failure.

Question 4

What happens to the composite SLA when you combine two services each with a 99.9% SLA?

Accepted Answer

It decreases to approximately 99.8%

Answer

The composite SLA of dependent services is calculated by multiplying their individual SLAs: 0.999 × 0.999 = 0.998001, approximately 99.8%.

Question 5

What is Azure Service Health?

Accepted Answer

A service that provides personalized alerts and guidance when Azure service issues affect your resources

Answer

Azure Service Health notifies you about Azure service incidents, planned maintenance, and health advisories that may impact your specific resources.

AZ-900 Practice Test

AZ-900 Practice Test

AZ-900 Azure Monitoring and Service Level Agreements