DRAG DROP
Your network contains a single Active Directory domain named contoso.com. The domain
contains an Active Directory site named Site1 and an organizational unit (OU) named OU1.
The domain contains a client computer named Client1 that is located in OU1 and Site1.
You create five Group Policy objects (GPO). The GPOs are configured as shown in the following table.
You need to identify in which order the GPOs will be applied to Client1. In which order
should you arrange the listed GPOs?
To answer, move all GPOs from the list of GPOs to the answer area and arrange them in the correct order.
Answer: 
Explanation:
By default settings in Group Policy Objects (GPOs) get applied in the following order: Local
system policies first, then policies on the Active Directory Domain level, then policies on the
Active Directory Site level and then the policies for all the Organization Units the computer
and user are members of, starting at the root of the domain. The settings that are last
applied are the settings in effect.
NO!
LOCAL then SITE then Domain and OU
http://technet.microsoft.com/en-us/library/cc785665(v=ws.10).aspx
enforcing settings take precedence
GPO3 > GPO1 > GPO4 > GPO 2 > GPO5
Enforced are applied in reverse order
Gpo order: 3,1,4,5,2
LSDO then ODSL for the ones that are enforced (appliedin reverse order).
I agree with Danshi, it should be 3,1,4,5.2
Robert is right
Mina is right:
http://blogs.technet.com/b/musings_of_a_technical_tam/archive/2012/02/15/understanding-the-structure-of-a-group-policy-object-part-2.aspx
1. All “non-enforced gpo’s” are applied in normal order – Local, site, domain and ou
2. Alle “enforced gpo’s” are applied in reversed order – ou, domain. site