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2021 Mar 400-051 practice exam

Q121. Which Cisco Unified Communications Manager deployment model for clustering over the IP WAN mandates a primary and a backup subscriber at the same site? 

A. multisite with centralized call processing 

B. multisite with distributed call processing 

C. local failover 

D. remote failover 

E. remote failover with Cisco Unified Communications Manager Express as SRST 

Answer: C 


Q122. Refer to the exhibit. 

You received this debug output to troubleshoot a Cisco IOS MGCP gateway problem at a customer site. What is the purpose of this message? 

A. The MGCP gateway uses this message to respond to an RQNT message from Cisco Unified Communications Manager. 

B. The MGCP gateway uses this message to respond to an AUCX message from Cisco Unified Communications Manager. 

C. The MGCP gateway uses this message to respond to an AUEP message from Cisco Unified Communications Manager. 

D. The MGCP gateway uses this message to respond to a DLCX message from Cisco Unified Communications Manager. 

E. The MGCP gateway uses this message to respond to an NTFY message from Cisco Unified Communications Manager. 

Answer: C 


Q123. Which three Cisco Unity Connection call handler greetings can be overridden by the internal greeting? (Choose three.) 

A. holiday 

B. alternate 

C. error 

D. busy 

E. closed 

F. standard 

Answer: AEF 


Q124. When neither the active or standby Location Bandwidth Manager in the configured LBM group is available, what will the Cisco CallManager service on a subscriber Cisco Unified Communications Manager server do to make location CAC decisions? 

A. It will attempt to communicate with the first configured member in the Location Bandwidth Manager hub group. 

B. It will use the Call Treatment When No LBM Available service parameter with the default action to allow calls. 

C. It will use the Call Treatment When No LBM Available service parameter with the default action to reject calls. 

D. It will attempt to communicate with the local LBM service for location CAC decisions. 

E. It will allow all calls until communication is reestablished with any configured servers in the LBM group. 

Answer: D 


Q125. Which two host portion format conditions are true for directory URI on Cisco Unified Communications Manager? (Choose two.) 

A. It is case sensitive. 

B. It cannot start with a hyphen. 

C. It must have at least one character. 

D. It supports IPv4 or IPv6 addresses, or fully qualified domain names. 

E. It cannot end with a hyphen. 

F. It supports the & character. 

Answer: BE 


Replace 400-051 actual test:

Q126. Which statement describes DTMF processing on Cisco Unified Contact Center Express with supported SIP-based agent IP phones that are registered to Cisco Unified Communications Manager? 

A. Cisco Unified CCX receives the DTMF digits via SIP NOTIFY messages. 

B. Cisco Unified CCX receives the DTMF digits in the RTP payload based on RFC 2833. 

C. Cisco Unified CCX receives the DTMF digits via JTAPI messages. 

D. Cisco Unified CCX receives the DTMF digits via SIP INFO messages. 

E. Cisco Unified CCX receives the DTMF digits as part of the audio encoding in the RTP stream. 

Answer: C 


Q127. Which mechanism enables the Cisco Unified CCX Cisco Agent Desktop application to obtain a copy of the RTP packet stream directly from a supported IP phone? 

A. SPAN port monitoring 

B. desktop monitoring 

C. remote SPAN monitoring 

D. reflector port monitoring 

E. ESPAN monitoring 

Answer: B 


Q128. Which definition is included in a Cisco UC on UCS TRC? 

A. required RAID configuration, when the TRC uses direct-attached storage 

B. configuration of virtual-to-physical network interface mapping 

C. step-by-step procedures for hardware BIOS, firmware, drivers, and RAID setup 

D. configuration settings and patch recommendations for VMware software 

E. server model and local components (CPU, RAM, adapters, local storage) by name only; part numbers are not included because they change over time 

Answer: B 


Q129. Refer to the exhibit. 

The exhibit shows the Cisco IOS CLI output of debug ip dhcp packet, which was captured on a router that is located at a branch office where a single IP phone is located. There is a standalone Cisco Unified Communications Manager server at the central site, which also provides DHCP services to the IP phone at the branch office. You are troubleshooting a problem where the IP phone received an IP address in the correct subnet and with a correct subnet mask from the DHCP server, but never completed registration with Cisco Unified CM. Assuming the IP phone is correctly defined on Unified CM, which two statements the network components are true? (Choose two.) 

A. The MAC address of the IP phone is 01ec44761e3e7d. 

B. The IP address of the DHCP server is 10.101.15.1. 

C. The MAC address of the VLAN 101 interface is 01ec44761e3e7d. 

D. IThe MAC address of the IP phone is ec44761e3e7d. 

E. There is no IP connectivity between the VLAN 101 interface of the branch router and the ip-helper address that is configured on this interface. 

F. Based on the information provided, we cannot conclude if there is IP connectivity between the IP phone and Cisco Unified CM. 

Answer: DF 


Q130. Which two security services are provided by the Phone Proxy function on a Cisco ASA appliance? (Choose two.) 

A. It provides interworking to ensure that external IP phone traffic is encrypted, as long as the Cisco Unified Communications Manager cluster runs in secure mode. 

B. It only applies to encrypted voice calls where both parties utilize encryption. 

C. It manipulates the call signaling to ensure that all media is routed via the adaptive security appliance. 

D. It supports encrypted TFTP operation of IP phone configuration files. 

E. It intercepts and authenticates soft clients before they reach Cisco Unified Communications Manager clusters. 

F. It requires a remote routing device with an IPsec VPN tunnel. 

Answer: CE