## 9.5.11 KEYED Specifier

The KEYED specifier asks whether a file is connected for keyed access. It takes the following form:

    KEYED = kyd

kyd
  Is a character scalar memory reference that is assigned one of the following values:

  - 'YES': If keyed access is allowed for the file; the file must be indexed

  - 'NO': If keyed access is not allowed

  - 'UNKNOWN': If the processor is unable to determine whether keyed access is allowed

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