How fast can Cisco Unified Communications Manager generate CDR and CMR files?
A. One CDR file and one CMR file every minute for up to 1 hour
B. One CDR file and one CMR file every second for up to 1 minute
C. Ten CDR files and ten CMR files every hour for up to 1 day
D. Ten CDR files and ten CMR files every day for up to 1 week
A should be the answer
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/service/11_0_1/cdrdef/CUCM_BK_RFDE0054_00_cucm-cdr-administration-guide-1101/CUCM_BK_RFDE0054_00_release-1101_chapter_01.html