Question: Which statements about indexes are FALSE? ( Select Two. ) Indexes occupy additional disk space. Indexes should be avoided when joining tables. Indexes speed up

Which statements about indexes are FALSE? (Select Two.)
Indexes occupy additional disk space.
Indexes should be avoided when joining tables.
Indexes speed up select queries but slow down writes to the table.
Frequently manipulated columns should be indexed.
A composite index is an index of 2 or more columns on a table.

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