Which two statements are true about the interpretation of Buffer Cache Hit Ratio in the Instance Efficiency Percentages section of an AWR report? (Choose two.)

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• AA high value indicates that the buffer cache is adequately sized for the current workload.
• BPoor hit ratios indicate that a large number of indexed lookups or small table scans are being
• CA low hit ratio does not necessarily imply that increasing the size of the buffer cache will improve
• DA high hit ratio may indicate that repeated scanning of the same large table or index is being
• EA low hit ratio indicates that a KEEP buffer pool should be configured based on the size of the

• A
  14% (5)
• B
  6% (2)
• C
  78% (28)
• E
  3% (1)

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