Explanation:
Direct-path export is typically faster and it bypasses the SQL-comand processing layer. Incorrect Answer:
2: It cannot be invoked interactively.
3: Direct-path export is not character set independent.
5: It cannot be used to export rows containing LOBs and BFILEs.
Reference:
OCP Oracle 9i Database: Fundamentals II Exam Guide, Rama Velpuri, p. 421-425
Chapter 18: Transporting Data Between Databases

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