Pass4sure 642-447 Question Answer

The Ajax Corporation is designing an IP telephony network using Cisco MCS 7845 Series servers, each one capable of supporting 7500 devices. The design must meet these requirements: be cost-effective support up to 7500 phones provide a minimal level of redundancy Which configuration will meet Ajax Corporation needs? 

A. two Cisco Unified Communications Manager servers:
• 1 publisher and TFTP server combined
• 1 primary subscriber

B. three Cisco Unified Communications Manager servers:
• 1 publisher and TFTP server combined
• 1 primary subscriber
• 1 backup subscriber

C. four Cisco Unified Communications Manager servers:
• 1 publisher
• 1 TFTP server
• 1 primary subscriber
• 1 backup subscriber

D. five Cisco Unified Communications Manager servers
• 1 publisher
• 1 TFTP server
• 1 primary subscriber
• 2 backup subscribers

Answer: B