Multiple choice technology databases

If two programs A1,A2 are communicating thru subject name ( _LOCAL.SUB), then which of the following is true ..

  1. A1,A2 are connected to two different daemons

  2. A1,A2 are connected to the same daemon and the same service

  3. A1,A2 are connected to the same daemon and the different service

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The _LOCAL.SUB subject name indicates local communication within the same daemon and service. When programs use subjects prefixed with _LOCAL., they communicate through the same daemon instance and same service without going through the network. Different daemons or services would use different subject naming conventions.

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