Online Access Free 400-051 Practice Test

Which statement describes the key security service that is provided by the TLS Proxy function on a Cisco ASA appliance?

• A.It provides interworking to ensure that external IP phone traffic is encrypted, even if the rest of the system is unencrypted.
• B.It enables internal phones to communicate with external phones without encryption.
• C.It protects Cisco Unified Communications Manager from rogue soft clients and attackers on the data VLAN.
• D.It only applies to encrypted voice calls where both parties utilize encryption.
• E.It manipulates the call signaling to ensure that all media is routed via the adaptive security appliance.

Which header field does a SIP User Agent Client use to mandate Provisional Response Acknowledgment?

• A.Require: 100rel
• B.Supported: 100rel
• C.Allow: PRACK
• D.Rack: 100rel
• E.A SIP User Agent Client cannot mandate PRACK

Which two Sip requests use the same Cseq number of an earlier INVITE request? (Choose two.)

• A.UPDATE
• B.BYE
• C.CANCEL
• D.REFER
• E.NOTIFY
• F.ACK

What setting is required to play personal recordings during standard, closed and holiday hours?

• A.Enable standard and error greetings
• B.Enable holiday, closed, error and standard greetings
• C.Enable standard, alternate and error greetings
• D.Enable holiday, closed, standard, alternate and error greetings
• E.Enable holiday, closed and standard greetings

Refer to the exhibit. Assume that the bottom logical partition policy entry in Cisco Unified Communications Manager was provisioned last. How is the call treated when an IP phone in the Bangalore GeoLocation places a call to a MGCP gateway with FXS ports in the San Jose GeoLocation?

• A.The call is allowed because only the top policy entry matches the call flow.
• B.The call is denied because the call flow matches neither policy entries.
• C.The call is denied because the last added logical partition policy takes precedence when multiple matches exist.
• D.The call is allowed because the call flow matches neither policy entries.
• E.The call is allowed because the first listed logical partition policy takes precedence when multiple matches exist.