Which statement describes the question mark wildcard character in a SIP trigger that is configured
on Cisco Unity Express?

A.
It matches any single digit in the range 0 through 9.

B.
It matches one or more digits in the range 0 through 9.

C.
It matches zero or more occurrences of the preceding digit or wildcard value.

D.
It matches one or more occurrences of the preceding digit or wildcard value.

E.
It matches any single digit in the range 0 through 9, when used within square brackets.

Explanation:
Table 5-2 Trigger Pattern Wildcards and Special Characters
Charac
ter Description Examples
X The X wildcard
matches any single
digit in the range 0
through 9.
The trigger pattern 9XXX matches all numbers in
the range 9000 through 9999.
! The exclamation point
(!) wildcard matches
one or more digits in
the range 0 through 9.
The trigger pattern 91! matches all numbers in the
range 910 through
91999999999999999999999999999999.
? The question mark (?)
wildcard matches
zero or more
occurrences of the
preceding digit or
wildcard value.
The trigger pattern 91X? matches all numbers in
the range 91 through
91999999999999999999999999999999.
+ The plus sign (+)
wildcard matches one
or more occurrences
of the preceding digit
or wildcard value.
The trigger pattern 91X+ matches all numbers in
the range 910 through
91999999999999999999999999999999.
[ ] The square bracket ([
]) characters enclose a
range of values.
The trigger pattern 813510[012345] matches all
numbers in the range 8135100 through 8135105.
– The hyphen (-)
character, used with
the square brackets,
denotes a range of
values.
The trigger pattern 813510[0-5] matches all
numbers in the range 8135100 through 8135105.
^ The circumflex (^)
character, used with
the square brackets,
negates a range of
values. Ensure that it
is the first character
following the opening
bracket ([).
Each trigger pattern
can have only one ^
character.
The trigger pattern 813510[^0-5] matches all
numbers in the range 8135106