HOTSPOT
Your company has a main office and a branch office. An Active Directory site exists for each office.
The network contains an Active Directory forest named contoso.com. The contoso.com domain
contains three member servers named Server1, Server2, and Server3. All servers run Windows
Server 2012 R2.
In the main office, you configure Server1 as a file server that uses BranchCache.
In the branch office, you configure Server2 and Server3 as BranchCache hosted cache servers.
You are creating a Group Policy for the branch office site.
Which two Group Policy settings should you configure?
To answer, select the appropriate two settings in the answer area.
Answer: 
Explanation:
To use Group Policy to configure clients for hosted cache mode
Step x: In the Turn on BranchCache dialog box, click Enabled, and then click OK.
Step x+1: In the Group Policy Management Editor console, ensure that BranchCache is still selected,
and then in the details pane double-click Set BranchCache Hosted Cache mode. The Set BranchCache
Hosted Cache mode dialog box opens.Use Group Policy to configure domain member clients for hosted cache mode
http://technet.microsoft.com/en-us/library/ee649153(v=ws.10).aspx
In the exam the “Turn on BranchCache” is already enabled
Since we have two Cache servers and probably only Windows 8 clients, we need to use “Configure Hosted Cache Servers” to be able to use both cache servers.
“Set BrancheCache Hosted Cache Mode” also work with Windows 8. Windows 8 ignore the settings if “Configure Hosted Cache Servers” is enabled.
Whitout information about the client computers OS coudn’t answer this question correct.
“Set BranchCache Hosted Cache mode” has limitation of only one hosted cache server. Since we have 2 hosted cache servers in branch office, the answer is “Configure Hosted Cache Servers”
I agree.
I meant that i agree with doktor78’s explanation.
re what oddich said above, from https://technet.microsoft.com/en-us/library/jj127252(v=ws.11).aspx
Configure Hosted Cache Servers… For this policy setting to take effect, you must also enable the “Turn on BranchCache” policy setting.