nerdexam
IBM

C2090-610 · Question #97

What isolation level prevents dirty reads, nonrepeatable reads, and phantoms?

The correct answer is C. Repeatable read (RR). See the full explanation below for the reasoning.

Question

What isolation level prevents dirty reads, nonrepeatable reads, and phantoms?

Options

  • ARead stability (RS)
  • BCursor stability (CS)
  • CRepeatable read (RR)
  • DUncommitted read (UR)

How the community answered

(55 responses)
  • A
    2% (1)
  • B
    5% (3)
  • C
    84% (46)
  • D
    9% (5)

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