You are hired at an ISP and your new employer asks you to become familiar with the routing
policy. The 42+.*[21112]$ regular expression is in one of the policies. Which three AS paths match
the regex statement? (Choose three.)
A.
42 42 42 42 6
B.
42 42 42 27 21
C.
42 42 42 42 12
D.
42 69 2112 112
E.
42 69 212112
Explanation: