Which step is taken when configuring a Cisco Expressway solution?

Question

Options

• AConfigure the Expressway-E by using a non-traversal server zone.
• BEnable static NAT on the Expressway-E only.
• CDisable H.323 mode on the Expressway-E.
• DEnable H.323 H.460.19 demultiplexing mode on the Expressway-C.

• B
  95% (19)
• C
  5% (1)

Explanation

When Expressway-E is deployed in the DMZ, it typically has a private IP address on its internal interface and must be reachable via a public IP address from the Internet. Static NAT is enabled on Expressway-E to map its private DMZ IP to its externally routable public IP address. This configuration is done only on the Expressway-E because it is the only component that needs to be reachable from outside the enterprise network. Option A is incorrect - Expressway-E uses a traversal server zone, not a non-traversal zone, for the connection to Expressway-C. Option C is incorrect - H.323 mode should not be disabled on Expressway-E if H.323 support is needed; it is typically left enabled. Option D is incorrect - H.460.19 demultiplexing mode is configured on Expressway-E (the server side), not on Expressway-C.

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