HOTSPOT
You have an Exchange Server 2016 organization named Contoso.
You create an organization relationship with a partner’s Exchange Server organization named Fabrikam. The
users in Fabrikam can view the free/busy information of all the users in Contoso.
You need to ensure that the users in Fabrikam can view the custom Mail Tips configured in Contoso.
What command should you run in Contoso? To answer, select the appropriate options in the answer area.
Hot Area:
Answer: 
Explanation:
Box 1: Set-OrganizationRelationship
Use the Set-OrganizationRelationship cmdlet to modify existing organization relationships. Organization
relationships define the settings that are used with external Exchange organizations to access calendar free/
busy information or to move mailboxes between on-premises Exchange servers and Exchange Online as part
of hybrid deployments.
Box 2, box 3:
The MailTipsAccessEnabled parameter specifies whether MailTips data for users in this organization are
returned over this organization relationship. The accepted values are $true or $false. The default value is$false.
https://technet.microsoft.com/en-us/library/ee332326(v=exchg.160).aspx
Set-OrganizationRelationship [-Identity “Fabrikam”] -MailTipsAccessEnabled $True
https://technet.microsoft.com/en-us/library/ee332326(v=exchg.160).aspx | https://technet.microsoft.com/en-us/library/jj649324(v=exchg.150)
just for others to know, the [-Identity “Fabrikam] is not to specify it’s an optional parameter as the brackets normally mean. I meant that it’s already been provided in the syntax and is not a hotspot… sorry 🙂
Question says, You need to ensure that the users in Fabrikam can view the custom Mail Tips configured in Contoso. To this point, I feel we need to define the MailtipsAccessLevel
Set-OrganizationRelationship -MailTipsAccessLevel “All”
Do not agree.
In regards to -MailTipsAccess Level “All”:
This parameter is only meaningful when the MailTipsAccessEnabled parameter value is $true.
**Meaning, enable -MailTipsEnabled $true FIRST, then -MailTipsAccessLevel as you suggest. F
from: https://technet.microsoft.com/en-us/library/ee332326(v=exchg.160).aspx
While I agree with you based on how they tend to try and trip you up with these questions. It is really not as clear cut as it’s made out.
Yes you have to set MailtipsAccessEnabled to $true before setting MailtipsAccessLevel.
However just enabling the MailTips does not solve the issue presented, and that really annoys me as the true answer contains 2 commands, and the question does not say which command should you run first.
Poorly structured questions annoy me.