Multiple choice technology databases

A subject Name with “Invoice .Ny.TN” can be received by “>” “ .>” “Invoice...>” “I?.>” “Invoice..>” “Invoice.” “invoice.*” Number of listeners who can receive this are

  1. 3

  2. 4

  3. 2

  4. 5
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B Correct answer
Explanation

The subject Invoice.Ny.TN matches these patterns: Invoice...> (Invoice with two wildcards before >), Invoice..> (Invoice with one wildcard before >), and Invoice. (Invoice with wildcard, assuming implicit queue match). That's 4 matching patterns. The patterns >, *.>, and I?.> do not match because the subject has more segments. Invoice. (without wildcard) doesn't match either.

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