Based on the exhibit, the pool 'test1_pool' has members '10.1.1.1:80' and '10.1.1.2:8080', and the pool 'test2_pool' has members '10.1.1.1:8080' and '10.1.1.3:8080'. The virtual server 'test1_vs' references 'test2_pool', implying it needs 'test2_pool' for its configuration. Therefore, 'test2_pool' cannot be deleted before 'test1_vs' is deleted. Since nodes 10.1.1.1 and 10.1.1.2 are part of 'test2_pool', they cannot be deleted while 'test2_pool' is active. However, 'test1_pool' can be deleted first because no virtual servers are directly referencing it. Then, 'test2_pool' and node '10.1.1.3', which are part of 'test2_pool', can be deleted after ensuring they are no longer in use.