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Exam 1z0-078 topic 1 question 78 discussion

Actual exam question from Oracle's 1z0-078
Question #: 78
Topic #: 1
[All 1z0-078 Questions]

Which two statements are true about Instance Locks in Oracle 19c RAC? (Choose two.)

  • A. They are used to coordinate access across multiple library caches for the same stored procedure.
  • B. They are used to coordinate access across multiple library caches for anonymous PL/SQL execution.
  • C. They are used to coordinate the next value for a sequence created with the CACHE and ORDER clauses.
  • D. They are used when an application uses the DBMS_LOCK package for UL lock types.
  • E. They are used to coordinate the next value for a sequence created with the NOCACHE and NOORDER clauses.
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Suggested Answer: AD 🗳️
by 217972f at Nov. 2, 2024, 1:45 p.m.

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217972f
2 months, 1 week ago
Selected Answer: CD
C. Instance locks are used to coordinate the generation of sequence numbers when a sequence is created with the CACHE and ORDER clauses to ensure consistency across multiple instances in a RAC environment. D. The DBMS_LOCK package can be used to create user-defined locks (UL locks), and these locks are managed as instance locks in a RAC environment to ensure synchronization.
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