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Chunzhi Hong (Chunzhi_Hong)
PEGA
Consulting Manager, Pega Consulting
Pegasystems Inc.
JP
Chunzhi_Hong Member since 2013 138 posts
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Posted: August 5, 2015
Last activity: December 7, 2016
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Is it true that "whenever Cache Hit is returned, the system does not invoke the database"?

Architecture > PRPC Caches > Quiz

The last quiz of  the lesson like below, and the correct answer is the first one.

When Cache Miss is returned, the system always queries from the database

 

So my question is why the second option is incorrect?

Whenever Cache Hit is returned, the system does not invoke the database

I couldn't figure it out from the coures contents.

 

Which of the following step happens when looking at finding the right rule to execute? (Choose One)
When Cache Miss is returned, the system always queries from the database
Whenever Cache Hit is returned, the system does not invoke the database
Whenever Cache Miss is returned, the system queries from the database and stores in the cache
Whenever Cache Miss is returned, the system throws an exception that rule cannot be found
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