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Question 1 1 1 pts How are blocks read with a single - level index scan? A scan reads all index blocks to find table

Question 11
1 pts
How are blocks read with a single-level index scan?
A scan reads all index blocks to find table blocks that contain selected rows. The table blocks are then read.
A scan is initiated to read all table blocks. Index blocks are then read.
The search reads one index block plus selected table blocks
A scan is initiated to read all table blocks that contain index blocks with selected data.
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