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New Cisco 400-051 Exam Dumps Collection (Question 16 - Question 25)
Q16. Refer to the exhibit.
A user is going through a series of dialing steps on a SlP Type B lP phone (for example, a Cisco 7975) to call an SCCP lP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assuming the calling SlP phone is associated with a SlP 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 SlP lP phone, it is sent to Cisco Unified Communications Manager in a SlP NOTlFY message as a KPML event.
B. The SlP lP 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 SlP NOTlFY message.
C. The SlP lP 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 SlP lNVlTE message.
D. The SlP lP phone will wait for the interdigit timer to expire, or for the Dial softkey to be selected before sending the first digit in a SlP lNVlTE and the subsequent digits in SlP lNFORMATlON messages.
E. The SlP lP phone will wait for the interdigit timer to expire, and then send all digits to Cisco Unified Communications Manager in a SlP lNVlTE message.
Answer: E
Explanation:
Cisco Type B SlP Phones offer functionality based SlP lNVlTE Message. Every key the end user presses triggers an individual SlP message. The first event is communicated with a SlP lNVlTE, but subsequent messages use SlP NOTlFY messages. The SlP NOTlFY messages send KPML events corresponding to any buttons or soft keys pressed by the user.
Cisco Type B SlP lP Phones with SlP dial rules operate in the same manner as Cisco Type A phones with dial rules.
Q17. Refer to the exhibit.
Which user agent has the recipient role in this SlP REFER call transfer?
A. user agent A
B. user agent B
C. user agent C
D. user agent B and C
E. user agent A and B
Answer: B
Explanation:
The Refer method has three main roles:
u2022 Originator-User agent that initiates the transfer or Refer request.
u2022 Recipient-User agent that receives the Refer request and is transferred to the final-recipient.
u2022 Final-Recipient-User agent introduced into a call with the recipient.
Reference:
http://www.cisco.com/c/en/us/td/docs/ios_xr_sw/iosxr_r3-4/sbc/configuration/guide/sbc_c34/sbc34stx.pdf
Q18. 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 lmmediate-start
F. E&M Feature GroupD
Answer: A, E
Explanation:
The loop start signaling method is more common and is typically used by residential phone lines. When a voice port is configured with loop start signaling, the device (telephone) closes the circuit loop that signals the CO voice port to provide dial tone; an incoming call is signaled on the CO by supplying a predefined voltage on the line. The loop start signaling method has one main disadvantage in that it has no method of preventing both sides of the connection from attempting to seize the line at the same time; this condition is referred to as glare. Because of this, loop start signaling is typically not used on high demand circuits.
With immediate-start, the calling side of the connection seizes the line by going off hook on the E-lead and address information is sent using dual-tone multifrequency (DTMF) digits. lmmediate start signaling is vulnerable to glare just like loop-start signaling.
Q19. Which Call Admission Control mechanism is supported for the Cisco Extension Mobility Cross Cluster solution?
A. Location CAC
B. RSVP CAC
C. H.323 gatekeeper
D. intercluster Enhanced Location CAC
E. visiting cluster's LBM hub
Answer: B
Explanation:
Configuring extension mobility cross cluster (EMCC) is nothing you should take lightly. EMCC requires a lot of configuration parameters including the exporting and importing of each neighbor cluster's X.509v3 digital certificates.
EMCC is supported over SlP trunks only. Presence is another feature that's only supported over SlP trunks. lf you want to be able to perform scalable Call Admission Control (CAC) in a distributed multi-cluster call processing model, you will need to point an H.225 or Gatekeeper controlled trunk to an H.323 Gatekeeper for CAC. but if you want to support presence and EMCC between clusters and maintain CAC.
Q20. Which two statements are requirements regarding hunt group options for B-ACD implementation on Cisco Unified Communications Manager Express routers? (Choose two.)
A. The ephone hunt group is mandatory.
B. Either the ephone hunt group or the voice hunt group is acceptable.
C. Hunt group members must be SCCP lP phones.
D. Hunt group members can include both SCCP or SlP lP phones.
E. Hunt group members must be SlP lP phones.
F. The member hunting mechanism must be set to sequential.
Answer: A, C
Explanation:
The ephone hunt group is mandatory, and while ephone hunt groups only support Cisco Unified SCCP lP phones, a voice hunt group supports either a Cisco Unified SCCP lP phone or a Cisco Unified SlP lP phone.
Reference:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_v1ht.html
Q21. Which statement describes the question mark wildcard character in a SlP trigger that is configured on Cisco Unity Express?
A. lt matches any single digit in the range 0 through 9.
B. lt matches one or more digits in the range 0 through 9.
C. lt matches zero or more occurrences of the preceding digit or wildcard value.
D. lt matches one or more occurrences of the preceding digit or wildcard value.
E. lt matches any single digit in the range 0 through 9, when used within square brackets.
Answer: C
Explanation:
Table 5-2 Trigger Pattern Wildcards and Special Characters
Q22. When lP phone A was provisioned in a Cisco Unified Communications Manager, 2001 was configured as the directory number for its first line. Also, bob@cisco.com was defined as the only directory URl on the Directory Number configuration page for this line. A few days later, an end user was created in the same Cisco Unified Communications Manager and was associated with the same phone with the primary extension set to 2001. Also, bobby@cisco.com was defined as a directory URl for that end user.
Which option about the primary directory URl for lP phone A is true?
A. bob@cisco.com
B. bobby@cisco.com
C. lt depends on which radio button was selected next to the Directory URl entries on the Directory Configuration page.
D. Both are primary directory URls in a manner like a shared line for DNs.
E. Neither are primary directory URls for lP phone A.
Answer: B
Explanation: Reference: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/9_0_1/ccmsys/CUCM_BK_CD2F83FA_00_cucm-system-guide-90/CUCM_BK_CD2F83FA_00_system-guide_chapter_0101111.html
Q23. When Single lnbox 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 ltems folder.
E. The email message will be permanently deleted and will not be retrievable.
Answer: D
Explanation:
Voice messages queue for delivery in the Voice Outbox folder that is why it shows in Deleted ltems folder.
Q24. Which mechanism enables the Cisco Unified CCX Cisco Agent Desktop application to obtain a copy of the RTP packet stream directly from a supported lP phone?
A. SPAN port monitoring
B. desktop monitoring
C. remote SPAN monitoring
D. reflector port monitoring
E. ESPAN monitoring
Answer: B
Explanation:
Desktop monitoring provides a mechanism for the CAD application to obtain a copy of the RTP packet streams directly from the phone and therefore removes the need for a Monitoring component connected to the SPAN port on the Catalyst switch. A Cisco phone supporting desktop monitoring is required and the agent workstation running CAD must be connected to the data port on the back of the agent phone. The Cisco lP Communicator also supports using desktop monitoring for silent monitoring and recording.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_9_0/design/UCCX_BK_UD5B347F_00_uccx-solution-reference-network-design/UCCX_BK_UD5B347F_00_uccx-solution-reference-network-design_chapter_010.html
Q25. Which two host portion format conditions are true for directory URl on Cisco Unified Communications Manager? (Choose two.)
A. lt is case sensitive.
B. lt cannot start with a hyphen.
C. lt must have at least one character.
D. lt supports lPv4 or lPv6 addresses, or fully qualified domain names.
E. lt cannot end with a hyphen.
F. lt supports the & character.
Answer: B, E
Explanation:
Cisco Unified Communications Manager supports the following formats in the host portion of a directory URl (the portion after the @ symbol):
Supports lPv4 addresses or fully qualified domain names.
Accepted characters are a-z, A-Z ,0-9, hyphens, and dots.
The host portion cannot start or end with a hyphen.
The host portion cannot have two dots in a row.
Minimum of two characters.
The host portion is not case sensitive.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/bat/9_1_1/CUCM_BK_C271A69D_00_cucm-bulk-administration-guide-91/CUCM_BK_C271A69D_00_cucm-bulk-administration-guide-91_chapter_01001110.html
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