These commands set and display the confidence level of clerk calls.
 Setting the confidence controls the accuracy level and cost of clerk
 calls. The value of the confidence can be one of the following:
 low, medium, or high. A low confidence level means the clerk obtains
 information from caches or the most convenient server. A medium
 level means the clerk obtains information directly from a server,
 and a high level means the clerk obtains information only at master
 replicas. The initial value is medium.

 SYNOPSIS

      SET DNSCP CONFIDENCE [=] value

      SHOW DNSCP CONFIDENCE