Investigate wehter the "pod that uses dns" test is valid upstream

[jayunit100]

https://github.com/kubernetes/kubernetes/blob/master/test/e2e/network/example_cluster_dns.go

Is it possible this test has a bug in it ?

[sig-network] ClusterDns [Feature:Example] should create pod that uses dns
[sig-network] ClusterDns [Feature:Example] should create pod that uses dns
[sig-network] ClusterDns [Feature:Example] should create pod that uses dns
[sig-network] ClusterDns [Feature:Example] should create pod that uses dns