Cisco
300-070 · Question #332
300-070 Question #332: Real Exam Question with Answer & Explanation
The correct answer is B: 9.[2-9]XXXXXX will be matched first because en bloc dialing is being used.. With en bloc dialing, CUCM receives the entire digit string at once and evaluates all patterns simultaneously, so only patterns that match the full dialed number are candidates - Urgent Priority on a non-matching pattern is irrelevant.
Question
Which of these two route patterns will be matched if 99118855 is dialed with en bloc dialing enabled? 9.911 Urgent Priority Enabled 9.[2-9]XXXXXX
Options
- A9.911 will always be matched because it is tagged as Urgent Priority.
- B9.[2-9]XXXXXX will be matched first because en bloc dialing is being used.
- CThere will be a tie between the two route patterns, and a random selection will be made.
- DThe 9.911 pattern will be dialed first and if the call is not successful, then the other potential
- ECisco Unified Communications Manager will not be able to determine which pattern to match.
Explanation
With en bloc dialing, CUCM receives the entire digit string at once and evaluates all patterns simultaneously, so only patterns that match the full dialed number are candidates - Urgent Priority on a non-matching pattern is irrelevant.
Common mistakes.
- A. Urgent Priority forces immediate routing only when a pattern is matched, but 9.911 cannot match the 8-digit string 99118855 regardless of priority, so Urgent Priority is never invoked.
- C. CUCM performs deterministic best-match selection using longest-prefix and specificity rules - there is no tie-breaking by random selection.
- D. CUCM does not implement sequential pattern fallback; it selects the single best match from all evaluated patterns simultaneously.
- E. CUCM can unambiguously match 99118855 to 9.[2-9]XXXXXX, so there is no ambiguity or failure to determine a match.
Concept tested. En bloc dialing effect on route pattern matching and Urgent Priority
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