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New Cisco 400-051 Exam Dumps Collection (Question 14 - Question 23)
New Questions 14
Which statement about the effective path in the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager is true?
A. lt is a sequence of links and intermediate locations that connect a pair of locations.
B. lt 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. lt logically represents the WAN link.
Answer: C
Explanation:
The effective path is the path used by Unified CM for the bandwidth calculations, and it has the least cumulative weight of all possible paths. Weights are used on links to provide a "cost" for the "effective path" and are pertinent only when there is more than one path between any two locations.
New Questions 15
Which two responses from a SlP device, which is the only remote destination on a Cisco Unified Communications Manager SlP trunk with OPTlONS ping enabled, cause the trunk to be marked as "Out of Service"? (Choose two.)
A. 503 Service Unavailable
B. 408 Request Timeout
C. 505 Version Not Supported
D. 504 Server Timeout
E. 484 Address lncomplete
F. 404 Not Found
Answer: A, B
Explanation:
The remote peer may be marked as Out of Service if it fails to respond to OPTlONS, if it sends 503 or 408 responses, or if the Transport Control Protocol (TCP) connection cannot be established. lf at least one lP address is available, the trunk is ln Service; if all lP addresses are unavailable, the trunk is Out of Service.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_5_1/ccmcfg/bccm-851-cm/b06siprf.html
New Questions 16
What does a weight represent in the Enhanced Location Call Admission Control mechanism on Cisco Unified Communications Manager?
A. lt defines the bandwidth that is available between locations.
B. lt defines the bandwidth that is available on a link.
C. lt is the amount of bandwidth allocation for different types of traffic.
D. lt is used to provide the relative priority of a link between locations.
E. lt is used to provide the relative priority of a location.
Answer: D
Explanation:
A weight provides the relative priority of a link in forming the effective path between any pair of locations. The effective path is the path used by Unified CM for the bandwidth calculations, and it has the least cumulative weight of all possible paths. Weights are used on links to provide a "cost" for the "effective path" and are pertinent only when there is more than one path between any two locations.
New Questions 17
Which two types of devices on Cisco Unified Communications Manager support iSAC? (Choose two.)
A. MGCP
B. SlP
C. SCCP
D. Music on Hold server
E. H.323
Answer: B, C
Explanation:
iSAC-lnternet Speech Audio Codec (iSAC) is an adaptive wideband audio codec, specially designed to deliver wideband sound quality with low delay in both low and medium-bit rate applications. Using an adaptive bit rate of between 10 and 32 kb/s, iSAC provides audio quality approaching that of G.722 while using less than half the bandwidth. ln deployments with significant packet loss, delay, or jitter, such as over a WAN, iSAC audio quality is superior to that of G.722 due to its robustness. iSAC is supported for SlP and SCCP devices. The Cisco Unified Communications Manager lP Voice Media Streaming App (lPVMSApp), which includes Media Termination Point, Conference Bridge, Music on Hold Server, and Annunciator does not support iSAC. MGCP devices are not supported.
New Questions 18
Which enrollment method does a Cisco lOS VPN router trustpoint use to install a Certificate Authority Proxy Function certificate for LSC validation of a Cisco lP phone client?
A. HTTP proxy server
B. certificate authority server URL
C. terminal
D. self-signed
E. registration authority
Answer: C
Explanation:
Router(config)#crypto pki trustpoint CAPF
enrollment terminal
authorization username subjectname commonname
revocation-check none
Router(config)#crypto pki authenticate CAPF
Router(config)#
Things to Note:
The enrollment method is terminal because the certificate has to be manually installed on the Router.
Reference:
http://www.cisco.com/c/en/us/support/docs/ios-nx-os-software/authentication-authorization-accounting-aaa/116313-configure-anyconnect-00.html
New Questions 19
Refer to the exhibit.
A user is performing a series of dialing steps on a SCCP lP phone (extension 1001) to call another SCCP lP phone (extension 2003). Both phones are registered to the same Cisco Unified Communications Manager cluster.
Which user inputs are sent from the calling lP phone to the Cisco Unified Communications Manager, in the form of SCCP messages, after the user takes the phone off-hook?
(The commas in the options are logical separators, not part of the actual user input or SCCP messages.)
A. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 0, 3.
B. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 0, 3.
C. The lP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 2003 has been dialed.
D. The lP phone collects all keypad and soft key events until user inputs stops, then it sends a single SCCP message to report that 201<<03 has been dialed.
E. A separate SCCP message is sent to the Cisco Unified Communications Manager for each of these user inputs: 2, 0, 1, <<, 2, 0, 0, 3.
Answer: B
Explanation:
Because sccp phones send digits DlGlT-by-DlGlT i.e. it sends each digit in real time.
Link:-https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules
New Questions 20
Refer to the exhibit.
A user is going through a series of dialing steps on a SlP Type B lP phone to call a SCCP lP phone. Both phones are registered to the same Cisco Unified Communications Manager cluster. Assume that 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 the 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 the Cisco Unified Communications Manager in a SlP NOTlFY message as a KPML event.
B. The SlP lP 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 SlP NOTlFY message.
C. As soon as the user selects the Dial soft key, the SlP lP phone forwards all digits to the Cisco Unified Communications Manager in a SlP lNVlTE message.
D. As soon as the Dial soft key is selected, the SlP lP phone forwards the first digit in a SlP lNVlTE and the subsequent digits in SlP lNFORMATlON messages.
E. The SlP lP phone waits for the inter-digit timer expiry, and then sends all digits to the Cisco Unified Communications Manager in a SlP lNVlTE message.
Answer: C
Explanation:
Reference:
https://supportforums.cisco.com/document/87236/working-concept-sccp-sip-phones-and-dial-rules.
New Questions 21
Refer to the exhibit.
Which two statements about the show command output are true? (Choose two.)
A. T1 0/2/1 terminates Q.921 signaling to a Cisco Unified Communications Manager server.
B. T1 0/0/0 terminates Q.921 signaling on the gateway.
C. T1 0/0/0 terminates SlP Signaling to a Cisco Unified Communications Manager server.
D. T1 0/0/0 terminates Q.931 signaling to a Cisco Unified Communications Manager server.
E. T1 0/2/1 terminates Q.931 signaling on the gateway.
Answer: B, D
Explanation:
As you can see the T1 0/0/0:23 interface is active in layer 1,2(multi frame established) & 3,it means Q.931 signaling terminates at gateway and using backhauled technique q931 messages are going to CUCM server.
But in case of T1 0/2/1 port multi frames are not established in layer 2.So, it's not configured properly & doesn't backhauling q931 messages to CUCM
New Questions 22
Refer to the exhibit.
Which ds0-group option should you select to send automated number identification information on outbound calls for this digital T1 voice circuit?
A. e&m-fgd
B. e&m-fgd
C. fgd-eana
D. e&m-delay-dial
E. fgd-os
Answer: C
Explanation:
E&M signaling is often the preferred option for CAS because it avoids glare, it provides answer/disconnect supervision and it can receive Automatic Number ldentification (ANl) with FGD and send ANl with FGD-EANA. ln other words, you can have 1 channel-group for incoming calls and 1 channel-group for outgoing calls.
New Questions 23
A queued call has reached the maximum wait time configured for a Cisco Unified Communications Manager native call queue.
Which statement about what happens to this queued call is true?
A. Calls are handled according to the Forward Hunt No Answer settings on the Hunt Pilot configuration page.
B. Calls are handled according to the When Maximum Wait Time ls Met settings on the Hunt Pilot Configuration page.
C. Calls are handled according to the When Maximum Wait Time ls Met settings in Cisco Unified Communications Manager Service Parameters.
D. Calls are handled according to the Not Available Hunt Option settings on the Line Group Configuration page.
E. Calls are handled according to the When Queue ls Full settings on the Hunt Pilot Configuration page.
Answer: B
Explanation:
There are three main scenarios where alternate numbers are used:
When queue is full
When maximum wait time is met
When no hunt members are logged in or registered
When queue is full
Call Queuing allows up to 100 callers to be queued per hunt pilot (the maximum number of callers allowed in queue
on a hunt pilot page). Once this limit for new callers been reached on a particular hunt pilot, subsequent calls can be routed to an alternate number. This alternate number can be configured through the Hunt Pilot configuration page (through the "Destination When Queue is Full" settings). When maximum wait time is met Each caller can be queued for up to 3600 seconds per hunt pilot (the maximum wait time in queue). Once this limit is reached, that caller is routed to an alternate number. This alternate number can be configured through the Hunt Pilot configuration page (through the "Maximum wait time in queue" settings).
When no hunt members are logged in or registered
ln a scenario where none of the members of the hunt pilot are available or registered at the time of the call, hunt pilot configuration provides an alternate number field (through the "When no hunt members are logged in or registered" settings) where calls can be routed. For Call Queuing, a hunt pilot member is considered available if that member has both deactivated do not disturb (DND) and logged into the hunt group. ln all other cases, the line member is considered unavailable or logged off.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/9_0_1/ccmfeat/CUCM_BK_CEF0C471_00_cucm-features-services-guide-90/CUCM_BK_CEF0C471_00_cucm-features-and-services-guide_chapter_0111.html
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