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400-051 Premium Bundle

CCIE Collaboration Certification Exam

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December 4, 2024Last update

Cisco 400-051 Free Practice Questions

Q1. Which message is used by a Cisco IOS MGCP gateway to send periodic keepalives to its call agent? 

A. CRCX 

B. AUCX 

C. NTFY 

D. RQNT 

E. 200 OK 

Answer:

Q2. 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:

Q3. When a Cisco IOS gatekeeper receives an ARQ from a registered endpoint, what is the first step it will take in an attempt to resolve the destination address? 

A. Check to see if the destination address is locally registered. 

B. Check to see if the destination address matches the technology prefix. 

C. Check to see if the destination address matches the local zone prefix. 

D. Check to see if the destination address matches the remote zone prefix. 

E. Check to see if the destination address matches the default technology prefix. 

Answer:

Q4. Which two data frame lengths are supported by iLBC? (Choose two.) 

A. 10 milliseconds 

B. 20 milliseconds 

C. 30 milliseconds 

D. 40 milliseconds 

E. 50 milliseconds 

F. 60 milliseconds 

Answer: BC 

Q5. Which statement about accessing secure Cisco Unity Connection voice messages in an Exchange mailbox in a Single Inbox deployment is true? 

A. Users can listen to a secure voice message if they use the Outlook email client. 

B. Users can listen to a secure voice message if they use the Outlook email client with the ViewMail add-in. 

C. Users can listen to a secure voice message with email clients other than Outlook if they have installed the ViewMail add-in. 

D. Users cannot listen to a secure message in Exchange because it is not supported in Single Inbox. 

E. Secure voice messages are stored on the Cisco Unity Connection server and the Exchange server. 

Answer:

Q6. Refer to the exhibit. 

Assume that the serial interface link bandwidth is full T1. What is the bandwidth that is guaranteed for voice signaling traffic with a DSCP value of CS3? 

A. 33 percent of 1.544 Mb/s 

B. 5 percent of 1.544 Mb/s 

C. 38 percent of 1.544 Mb/s 

D. 62 percent of 1.544 Mb/s 

E. 0 percent of 1.544 Mb/s 

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. Which statement about system broadcast messages in Cisco Unity Connection is true? 

A. The user can skip a system broadcast message to listen to new messages first. 

B. The user can forward a system broadcast message only if it has been played in its entirety. 

C. System broadcast messages are synchronized between Cisco Unity Connection and Exchange when Single Inbox is configured. 

D. System broadcast messages do not trigger MWI. 

E. System broadcast messages are played immediately after users sign in and listen to message counts for new and saved messages. 

Answer:

Q9. Which device is the initiator of a StationInit message in a Cisco Unified Communications Manager SDI trace? 

A. Cisco Unified Communications Manager 

B. MGCP gateway 

C. Cisco Music on Hold server 

D. SCCP IP phone 

E. SIP Proxy Server 

Answer:

Q10. Which two Cisco Unified Communications Manager SIP profile configuration parameters for a SIP intercluster trunk are mandatory to enable end-to-end RSVP SIP Preconditions between clusters? (Choose two.) 

A. Set the RSVP over SIP parameter to Local RSVP. 

B. Set the RSVP over SIP parameter to E2E. 

C. Set the SIP Rel1XX Options parameter to Disabled. 

D. Set the SIP Rel1XX Options parameter to Send PRACK If 1xx Contains SDP. 

E. Set the SIP Rel1XX Options parameter to Send PRACK for All 1xx Messages. 

F. Check the Fall Back to Local RSVP check box. 

Answer: BD 

Q11. Refer to the exhibit. 

A user is going through a series of dialing steps on an SCCP IP phone (extension 1001) to call another SCCP IP phone (extension 2003). Both phones are registered to the same Cisco Unified Communications Manager cluster. Which user inputs are sent from the calling IP phone to the Cisco Unified Communications Manager, in forms of SCCP messages, after the user pressed the Dial softkey? Note that the commas in answer choices below are logical separators, not part of the actual user input or SCCP messages. 

A. A separate SCCP message is sent to Cisco Unified Communications Manager for each of the following user inputs: 2, 0, 0, 3. 

B. A separate SCCP message is sent to Cisco Unified Communications Manager for each of the following user inputs: 2, 0, 1, <<, 0, 3. 

C. A single SCCP message is sent to Cisco Unified Communications Manager to report that digits 2003 have been dialed. 

D. A single SCCP message is sent to Cisco Unified Communications Manager to report that digits 201<<03 have been dialed. 

E. A separate SCCP message is sent to Cisco Unified Communications Manager for each of the following user inputs: 2, 0, 1, <<, 2, 0, 0, 3. 

Answer:

Q12. 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:

Q13. Refer to the exhibit. 

Assume the B-ACD configuration on a Cisco Unified Communications Manager Express router is operational. 

How much time does a member of the hunt group have to answer a queue call that is ringing on their extension? 

A. 5 seconds 

B. 10 seconds 

C. 20 seconds 

D. 30 seconds 

E. 40 seconds 

Answer:

Q14. In a Cisco Unified Communications Manager design where +E.164 destinations are populated in directory entries, which call routing practice is critical to prevent unnecessary toll charges caused by internal calls routed through the PSTN? 

A. forced on-net routing 

B. automated alternate routing 

C. forced authorization codes 

D. client matter codes 

E. tail-end hop-off 

Answer:

Q15. Which statement about high availability for XMPP federation in Cisco IM and Presence is true? 

A. A maximum of two Cisco IM and Presence nodes can be enabled for XMPP federation. 

B. Cisco IM and Presence load balances outbound requests across all nodes that are enabled for XMPP federation. 

C. Cisco IM and Presence load balances outbound requests across both nodes that are enabled for XMPP federation in a subcluster. 

D. The XMPP federation-enabled nodes should have different priorities and weights on the published DNS SRV for proper inbound request node selection. 

E. A single DNS SRV record that resolves to an XMPP federation-enabled node must be published on a public DNS server for inbound request routing. 

Answer:

Q16. Which two analog telephony signaling methods are most vulnerable to glare conditions? (Choose two.) 

A. FXS Loop-start 

B. FXO Ground-start 

C. E&M Wink-start 

D. E&M Delay-dial 

E. E&M Immediate-start 

F. E&M Feature Group D 

Answer: AE 

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