You have an Office 365 subscription. All user mailboxes have an archive mailbox.
A new compliance policy has the following requirements:
All email messages that are more than one year old must be moved to the archive mailbox.
All email messages that are more than two years old must be deleted.
You create two default policy tags and one retention policy.
You need to implement the compliance policy.
Solution: You run the Set-RetentionPolicy cmdlet and specify the –isDefault $true parameter.
Does this meet the goal?

A.
Yes

B.
No

Explanation:

The Set-RetentionPolicy –isDefault parameter is reserved for internal Microsoft use.
References: https://technet.microsoft.com/en-us/library/dd335196(v=exchg.160).aspx