Go back to 642-165 - Unified Communications Contact Center Express Implementation(UCCX)

Question :-

Which configuration enables a Cisco Unified Contact Center Express server to fail over to a secondary Cisco Unified Communications Manager server when the primary server fails?
No special configuration is needed.
Configure LDAP with a secondary profile.
Configure a second Cisco Unified Communications Manager telephony user with an alternate range of CTI ports.
Configure the telephony provider with a primary and secondary Cisco Unified Communications Manager IP address.

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