300-820 · Question #120
300-820 Question #120: Real Exam Question with Answer & Explanation
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Question
An engineer reviews the configuration of a pair of Expressway servers for a company with the domain example.com. The company allows toll fraud calls to reach the Cisco UCM only when it expects externally registered devices to call internal 5-digit extensions. The search history shows that the fraudulent calls have a destination URI of 8 or more digits and several domains. What must the engineer configure to prevent all toll fraud calls from going past the Expressway-E to the internal network?
Options
- Asearch rules to only route calls with a destination URI of 5 to 8 digits long on the Expressway-E
- BCPL that blocks calls with a destination domain other than example.com on the Expressway-C.
- Csearch rules to only route calls with a destination domain of example.com on the Expressway-E
- DCPL to block calls with a destination URI with 8 or more digits on the Expressway-E
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