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Oracle

1Z0-083 · Question #203

RMAN is connected to the target database prod1 and an auxiliary instance in nomount state. Examine the command to create a duplicate database: RMAN> DUPLICATE TARGET DATABASE TO dup1 FROM ACTIVE…

The correct answer is B. The duplicate database has the same directory structure as the source database. F. The duplicate database is created without using RMAN backups and prod1 is allowed to. FROM ACTIVE DATABASE is the critical keyword making F correct - it instructs RMAN to duplicate directly from the live target database over the network, requiring no pre-existing backups and leaving prod1 online throughout. NOFILENAMECHECK makes B correct - it tells RMAN to skip…

Backup and Recovery

Question

RMAN is connected to the target database prod1 and an auxiliary instance in nomount state. Examine the command to create a duplicate database:

RMAN> DUPLICATE TARGET DATABASE TO dup1 FROM ACTIVE DATABASE NOFILENAMECHECK PASSWORD FILE SPFILE; Which two statements are true about the execution of the duplicate command?

Options

  • AAll archive redo log files are automatically copied to the duplicate database.
  • BThe duplicate database has the same directory structure as the source database.
  • CThe duplicate database is created by using the backups created during the execution of
  • Dhe duplicate command.
  • EThe password file and SPFILE for the duplicate database dup1 are created in their respective
  • FThe duplicate database is created without using RMAN backups and prod1 is allowed to

How the community answered

(31 responses)
  • A
    23% (7)
  • B
    58% (18)
  • C
    3% (1)
  • D
    3% (1)
  • E
    13% (4)

Explanation

FROM ACTIVE DATABASE is the critical keyword making F correct - it instructs RMAN to duplicate directly from the live target database over the network, requiring no pre-existing backups and leaving prod1 online throughout. NOFILENAMECHECK makes B correct - it tells RMAN to skip filename conflict validation, meaning the duplicate inherits the exact same directory structure and file paths as the source (only safe when the auxiliary is on a different host).

Why the distractors fail:

  • A is wrong because only the archive logs needed for consistency are transferred, not all archive logs.
  • C/D is wrong because FROM ACTIVE DATABASE streams datafiles live from the target - no backup set is created or used during duplication.
  • E is a partial/misleading distractor; while PASSWORD FILE and SPFILE keywords do cause those files to be generated for the duplicate, that statement is not one of the two correct answers here.

Memory tip: Think of the two keywords as a pair - FROM ACTIVE DATABASE = "no backup, live clone" (F), and NOFILENAMECHECK = "same paths, no conflict check" (B). If you see both in a DUPLICATE command, options about backups being unnecessary and matching directory structure should both light up.

Topics

#RMAN#Active Database Duplication#Database Cloning#Duplicate Command

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