400-051 Premium Bundle

400-051 Premium Bundle

CCIE Collaboration Certification Exam

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December 4, 2024Last update

Cisco 400-051 Free Practice Questions

Q1. Which two statements about the Cisco UC on UCS specs-based virtualization support model are true? (Choose two.) 

A. It has a configuration-based approach. 

B. It has a rule-based approach. 

C. It has less hardware flexibility compared to the third-party server specs-based support model. 

D. It has less hardware flexibility compared to the UC on UCS TRC support model. 

E. VMware vCenter is optional with this support model. 

Answer: BC 

Q2. Which SIP response is considered a final response? 

A. 183 Session in Progress 

B. 199 Early Dialog Terminated C. 200 OK 

D. 180 Ringing 

E. 100 Trying 

Answer:

Q3. To which Cisco enterprise medianet application class does Cisco Unified Personal Communicator belong? 

A. VoIP Telephony 

B. Real-time Interactive 

C. Multimedia Conferencing 

D. Broadcast Video 

E. Low Latency Data 

Answer:

Q4. Which statement about the effective path in the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager is true? 

A. It is a sequence of links and intermediate locations that connect a pair of locations. 

B. It is used to define the bandwidth that is available between locations. 

C. Only one effective path is used between two locations. 

D. There could be multiple effective paths between a pair of locations. 

E. It logically represents the WAN link. 

Answer:

Q5. Assume 18 bytes for the Layer 2 header and a 10-millisecond voice payload, how much bandwidth should be allocated to the strict priority queue for three VoIP calls that use a G.722 codec over an Ethernet network? 

A. 331.2 kb/s 

B. 347.8 kb/s 

C. 261.6 kb/s 

D. 274.7 kb/s 

E. 238.4 kb/s 

Answer:

Q6. Which capability is supported by Cisco Discovery Protocol but not by LLDP-MED? 

A. LAN speed and duplex discovery 

B. network policy discovery 

C. location identification discovery 

D. power discovery 

E. trust extension 

Answer:

Q7. When Single Inbox is configured, what will happen to an email message that was moved from any Outlook folder to the Voice Outbox folder? 

A. The email message will be delivered to Cisco Unity Connection. 

B. The email message will be kept in the Voice Outbox folder. 

C. The move will fail because the operation is not supported. 

D. The email message will be moved to the Deleted Items folder. 

E. The email message will be permanently deleted and will not be retrievable. 

Answer:

Q8. Refer to the exhibit. 

Which SIP message header is used to tunnel QSIG messages across the SIP network when the OGW receives a call bound for the TGW? 

A. Content-TypE. application/sdp 

B. Content-TypE. application/qsig 

C. Content-TypE. message/ISUP 

D. Content-TypE. message/external-body 

E. Content-TypE. application/x-q931 

Answer:

Q9. Refer to the exhibit. 

A user is going through a series of dialing steps on a SIP Type B IP phone (for example, a Cisco 7975) to call an SCCP IP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assuming the calling SIP phone is associated with a SIP dial rule with a pattern value of 2001, which statement about how digits are forwarded to 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 Cisco Unified Communications Manager in a SIP NOTIFY message as a KPML event. 

B. The SIP IP phone will wait for the interdigit timer to expire, and then send each digit to Cisco Unified Communications Manager as a separate KPML event in a SIP NOTIFY message. 

C. The SIP IP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending all digits to Cisco Unified Communications Manager in a SIP INVITE message. 

D. The SIP IP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending the first digit in a SIP INVITE and the subsequent digits in SIP INFORMATION messages. 

E. The SIP IP phone will wait for the interdigit timer to expire, and then send all digits to Cisco Unified Communications Manager in a SIP INVITE message. 

Answer:

Q10. Which two types of line codes are configurable for an E1 PRI controller on a Cisco IOS router? (Choose two.) 

A. CRC4 

B. AMI 

C. B8ZS 

D. HDB3 

E. ESF 

F. SF 

Answer: BD 

Q11. 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:

Q12. You have implemented 5-digit forced authorization codes to all international route patterns on Cisco Unified Communications Manager. Your users report that after entering the FAC codes, they must wait for more than 10 seconds before the call is routed. 

Which procedure eliminates the wait time? 

A. Check and eliminate any existing route patterns that overlap with the international route pattern. 

B. Go to the Cisco Unified Communications Manager Service Parameters and reduce the T-304 number to 5000 milliseconds. 

C. Request your long distance telephone service provider to reduce the call setup time to 5 seconds. 

D. Configure a # (hash) sign to the end of the forced authorization codes to signal the end of dialing. 

E. Educate the users to press # (hash) after entering the forced authorization codes. 

Answer:

Q13. Assume 6 bytes for the Layer 2 header, 1 byte for the end-of-frame flag, and a 40-millisecond voice payload, how much bandwidth should be allocated to the strict priority queue for five VoIP calls that use a G.729 codec over a multilink PPP link? 

A. 87 kb/s 

B. 134 kb/s 

C. 102.6 kb/s 

D. 77.6 kb/s 

E. 71.3 kb/s 

Answer:

Q14. Refer to the exhibit. 

How many inbound calls can be handled simultaneously between ephone 1 and ephone 2 before a user busy tone is returned? 

A. 6 

B. 7 

C. 8 

D. 9 

E. 11 

Answer:

Q15. 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 call in queue that was not answered by any member of the hunt group after the maximum amount of time allowed in the call queue expires? 

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:

Q16. 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:

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