400-051 Exam Questions - Online Test

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Q51. Which statement about the Cisco UC on UCS TRC and the third-party server specs-based virtualization support model is true? 

A. Both the UC on UCS TRC and the third-party servers spec-based support models have rule-based approaches. 

B. The UC on UCS TRC support model has a rule-based approach and the third-party servers spec-based support model has a configuration-based approach. 

C. The UC on UCS TRC support model requires a high level of virtualization experience while the third-party server spec-based support model requires a low to medium level virtualization experience. 

D. VMware vCenter is mandatory for the UC on UCS TRC support model but it is optional for the third-party server spec-based support model. 

E. VMware vCenter is optional for the UC on UCS TRC support model but it is mandatory for the third-party server spec-based support model. 

Answer: E 

Q52. Which codec complexity mode, when deployed on Cisco IOS routers with DSPs using the C5510 chipset, supports the most G.711 calls per DSP? 

A. Low 

B. Medium 

C. High 

D. Secure 

E. Flex 

Answer: E 

Q53. Which two Cisco Unified Communications Manager Express hunt group mechanisms keep track of the number of hops in call delivery decisions? (Choose two.) 

A. sequential 

B. peer 

C. longest idle 

D. parallel 

E. overlay 

F. linear 

Answer: BC 

Q54. In an effort to troubleshoot a caller ID delivery problem, a customer emailed you the voice port configuration on a Cisco IOS router. Which type of voice port is it? 

A. FXS 

B. E&M 

C. BRI 

D. FXO 

E. DID 

Answer: D 

Q55. Refer to the exhibit. 

If this SIP call is initiated using delayed offer, which SIP message will UA#2 use to communicate its media capability to UA#1? 

A. INVITE 

B. 180 Ringing 

C. 200 OK 

D. ACK 

E. RTP Media 

Answer: C 

Q56. Refer to the exhibit. 

Assume that the serial interface link bandwidth is full T1. What is the maximum amount of bandwidth allowed for priority queuing of RTP packets with a DSCP value of EF? 

A. 33% of 1.544 Mb/s 

B. 5% of 1.544 Mb/s 

C. 38% of 1.544 Mb/s 

D. 62% of 1.544 Mb/s 

E. 0% of 1.544 Mb/s 

Answer: A 

Q57. Which statement about application inspection of SAF network services on an adaptive security appliance is true? 

A. The adaptive security appliance can inspect and learn the ephemeral port numbers that are used by H.225 and H.245 on SAF-enabled H.323 trunks. 

B. An explicit ACL must be configured on the adaptive security appliance for SAF-enabled SIP trunks. 

C. An explicit ACL must be configured on the adaptive security appliance for SAF-enabled H.323 trunks to account for ephemeral port numbers that are used by H.225 and H.245. 

D. The adaptive security appliance can inspect and learn the ephemeral port numbers that are used by H.225 on SAF-enabled H.323 trunks, but H.245 ports must be explicitly defined. 

E. The adaptive security appliance provides full application inspection for SAF network services. 

Answer: C 

Q58. Which device is the initiator of a StationD message in a Cisco Unified Communications Manager SDI trace? 

A. SCCP IP phone 

B. SIP IP phone 

C. Cisco Unified Communications Manager 

D. MGCP analog gateway 

E. digital voice gateway 

Answer: C 

Q59. Which codec is supported on the Cisco PVDM2 DSP modules but not on the PVDM3 DSP modules? 

A. G.728 

B. G.729B 

C. G.729AB 

D. G.723 

E. G.726 

Answer: D 

Q60. What does a weight represent in the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager? 

A. It defines the bandwidth that is available between locations. 

B. It defines the bandwidth that is available on a link. 

C. It is the amount of bandwidth allocation for different types of traffic. 

D. It is used to provide the relative priority of a link between locations. 

E. It is used to provide the relative priority of a location. 

Answer: D