An administrator is tuning the Caching services to improve Dynamic cube report performance. At the same time, there is a need to control the memory…

Memory limits for the Dynamic Query (caching) service are properties of the Query Service object.

They are edited in IBM Cognos Administration → System tab.

From the same place, the administrator can immediately purge the cache (Actions → Clear cache) or schedule it.

IBM Cognos Configuration is used only for basic service registration and cannot clear runtime cache, while Content Administration’s “Clear cache” task does not expose the memory-limit properties.

A. No memory limits or cache-clear schedule exist by default; they must be explicitly configured.

B. Cognos Configuration manages startup settings; it has no “Clear Cache” operation for Query Service.

D. Content Administration can issue a one-time/scheduled clear, but it provides no controls for memory usage settings required in the scenario.

1. IBM Cognos Analytics 11.0 Administration and Security Guide, “Tuning Dynamic Query cache” – System tab → QueryService → Set Properties → Settings (p. 350-353).

2. IBM Cognos Analytics 11.0 Administration and Security Guide, “Clear the Query Service cache” – System tab → QueryService → Actions → Clear cache (p. 357).

3. IBM Knowledge Center (v11.0.13), topic: “Setting memory limits for Query Service and purging the cache” (kc11.0.13/com.ibm.swg.ba.cognos.ugcra.doc/ccraqscacheadmin.html).