Dell EMC Specialist – Systems Administrator, PowerStore — Question 20

A company has an Isilon cluster that is joined to an Active Directory (AD) domain. Previously, the company replaced their primary NTP server and added new NTP settings to the Isilon cluster. Now the users are experiencing authentication failures.
What is a possible reason for this behavior?

Answer options

• A. Cluster and the AD are configured to use the same NTP server.
• B. AD is not configured to synchronize its time from the cluster.
• C. SMB time is not configured on the cluster to synchronize with the AD.
• D. Time between the NTP and the AD differentiates by more than 5 minutes.

Correct answer: B

Explanation

The correct answer is B because if Active Directory is not configured to synchronize its time from the Isilon cluster, it can lead to authentication failures. Options A and C are incorrect because they don't directly address the time synchronization issue; while D, although relevant, does not specify the root cause related to AD configuration.