【单选题】A customer has a resource group rg1 configured on a two node cluster with the following policies:The customer has observed the following scenarios as nodes join the cluster during cluster start up. Sc...
A.
rg1 is configured with a delayed fallback timer
B.
Settling time policy has not been configured for rg1
C.
Node1 does not have sufficient resources to support rg1
D.
Node2 is the first in the ’Default Node Priority’ list for resource group rg1
【单选题】You are creating a cluster. The tables in the cluster have a relatively uniform distribution of values in the index column and the queries against the clustered table will almost use an equality opera...
【多选题】Which of the following statement about cluster sampling is/are true?
A.
Cluster sampling is used where the population is divided into already existing groupings.
B.
Clusters are usually formed by geographical locations.
C.
Cluster(s) is selected randomly from the population.
D.
In each selected cluster, simple random sampling or systematic sampling can be used for selecting sample members.
E.
In each selected cluster, even census can be used for selecting sample members.
F.
Cluster sampling can be viewed as a compromise between cost and representativeness, especially when research scales are large and travelling costs for fieldwork are high.