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400-051 Exam Questions - Online Test


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Q1. Which Cisco Unified Contact Center Express script media step can invoke a VXML application to retrieve and play prompts on-demand from an off-box location? 

A. Play Prompt step 

B. Voice Browser step 

C. Menu step 

D. Recording step 

E. Simple Recognition step 

Answer:

Q2. Assume 20 bytes of voice payload, 6 bytes for the Layer 2 header, 1 byte for the end-of-frame flag, and the IP, UDP, and RTP headers are compressed to 2 bytes, how much bandwidth should be allocated to the strict priority queue for six VoIP calls that use a G.729 codec over a multilink PPP link with cRTP enabled? 

A. 80.4 kb/s 

B. 91.2 kb/s 

C. 78.4 kb/s 

D. 69.6 kb/s 

E. 62.4 kb/s 

Answer:

Q3. Refer to the exhibit. 

Assume the B-ACD configuration on a Cisco IOS Cisco Unified Communications Manager Express router is operational. What will happen to a new call that enters the call queue when there are already two calls in queue? 

A. The call will be forwarded to extension 2120. 

B. The call will be forwarded to extension 2220. 

C. The call will be forwarded to extension 2003. 

D. The call will be disconnected with user busy. 

E. The call will be forwarded to 2100. 

Answer:

Q4. Refer to the exhibit. 

A user is going through a series of dialing steps on a SIP Type A IP phone to call a SCCP IP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assume that the calling SIP phone is not associated with any SIP dial rules. 

Which statement about how digits are forwarded to the Cisco Unified Communications Manager for further call processing is true? 

A. As each digit is pressed on the SIP IP phone, it is sent to the Cisco Unified Communications Manager in a SIP NOTIFY message as a KPML event. 

B. The SIP IP phone waits for the inter-digit timer expiry and then sends each digit to the Cisco Unified Communications Manager as a separate KPML event in a SIP NOTIFY message. 

C. The SIP IP phone waits for the inter-digit timer expiry or for the Dial soft key to be selected before it sends all digits to the Cisco Unified Communications Manager in a SIP INVITE message. 

D. The SIP IP phone waits for the inter-digit timer expiry, or for the Dial soft key to be selected before it sends the first digit in a SIP INVITE and the subsequent digits in SIP NOTIFY messages. 

E. The SIP IP phone sends all digits to the Cisco Unified Communications Manager in a SIP INVITE message as soon as the fourth digit is pressed. 

Answer:

Q5. Which statement about a virtual SNR DN-configured Cisco Unified Communications Manager Express-enabled Cisco IOS router is true? 

A. Virtual SNR DN supports either SCCP or SIP IP phone DNs. 

B. A virtual SNR DN is a DN that is associated with multiple registered IP phones. 

C. Calls in progress can be pulled back from the phone that is associated with the virtual SNR DN. 

D. The SNR feature can only be invoked if the virtual SNR DN is associated with at least one registered IP phone. 

E. A call that arrived before a virtual SNR DN is associated with a registered phone, and still exists after association is made, but cannot be answered from the phone. 

Answer:

Q6. Which configuration parameter defines whether or not the user portion of a directory URI is case sensitive on Cisco Unified Communications Manager 9.1 or later? 

A. URI Dialing Display Preference in Cisco CallManager Service Parameter 

B. URI Lookup Policy in Cisco CallManager Service Parameter 

C. URI Dialing Display Preference in Enterprise Parameters 

D. URI Lookup Policy in Enterprise Parameters 

E. The user portion of a directory URI is always case sensitive and cannot be changed. 

Answer:

Q7. Which SIP request is used by a Cisco 9971 IP Phone to signal DND status changes to Cisco Unified Communications Manager? 

A. REGISTER 

B. NOTIFY 

C. INFO 

D. PUBLISH 

E. UPDATE 

Answer:

Q8. 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 

Q9. Refer to the exhibit. 

From this NFAS-enabled T1 PRI configuration on a Cisco IOS router, how many bearer channels are available to carry voice traffic? 

A. 91 

B. 92 

C. 93 

D. 94 

E. 95 

Answer:

Q10. What is the name of the logical channel proposal that is transmitted from the called entity to the calling entity in H.323 Fast Connect? 

A. Forward Logical Channel 

B. Backward Logical Channel 

C. Reverse Logical Channel 

D. Originator Logical Channel 

E. Destination Logical Channel 

Answer: