• 2022-05-30
    Which statements are true regarding listeners()
    A: AListeners use only the TCP/IP protocol.
    B: BMultiple listener processes can run simultaneously on a host.
    C: CMultiple database instances can be registered with a single listener.
    D: DThe listener-related errors can be traced only at the administrative level.
    E: EOnly one database instance can be registered with a single listener at any time
  • 举一反三