Which of the following is the most likely cause of this outage?

A social networking company operates globally. Some users from Brazil and Argentina are reporting the following error: website address was not found.

Which of the following is the most likely cause of this outage?
A . Client DNS misconfigutation
B . Regional DNS provider outage
C . DNS server misconfiguration
D . DNS propagation issues

View Answer

Answer: B

Explanation:

The most likely cause of the outage, with users from specific regions like Brazil and Argentina reporting an error that the website address was not found, is a regional DNS provider outage. This type of outage would affect users in particular areas, preventing domain name resolution and leading to the reported error.

Reference: Regional outages and their impact on service availability are discussed within the Cloud Concepts domain, which includes understanding the importance of DNS in cloud services, as per the CompTIA Cloud+ objectives.