Home » Cisco » 642-437 » Which three methods are used by a Cisco Unified Border Element to provide network hiding?
Which three methods are used by a Cisco Unified Border Element to provide network hiding? (Choosethree.)
A. Back-to-back user agent, replacing all H.323-embedded IP addressing
B. IP network security boundary
C. Media flow-through
D. RSVP
E. IP network privacy and topology hiding
F. Intelligent IP address translation for RTP flows
Correct Answer: BEF
Explanation/Reference:
Explanation: Cisco Unified Border Element can protect the network by hiding the network addresses andnames for both the access (customer) side and the backbone (network core) side. A CUBE is designed toprovide IP network privacy and topology hiding, IP network security boundary, Intelligent IP addresstranslation for call media and signaling, Back-to-back user agent, replacing all SIP-embedded IPaddressing, History information based topology hiding and call routing. http://www.cisco.com/en/US/docs/routers/asr1000/configuration/guide/sbc/sbc_topology_hide.html
