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New Cisco 400-051 Exam Dumps Collection (Question 7 - Question 16)
Q1. Which RAS message is used between two gatekeepers to resolve an alias address?
A. GRQ
B. ARQ
C. lRQ
D. LRQ
E. RRQ
Answer: D
Explanation:
LRQ - These messages are exchanged between gatekeepers and are used for inter-zone (remote zone) calls. For example, gatekeeper A receives an ARQ from a local zone gateway requesting call admission for a remote zone device.
Gatekeeper A then sends an LRQ message to gatekeeper B. Gatekeeper B replies to the LRQ message with either a Location Confirm (LCF) or Location Reject (LRJ) message, which depends on whether it is configured to admit or reject the inter-zone call request and whether the requested resource is registered.
Q2. What is the maximum number of option 150 lP addresses that a Cisco lP SCCP phone will accept and use from a DHCP server?
A. 1
B. 2
C. 3
D. 4
E. 5
Answer: B
Explanation:
Cisco Unified lP Phones use the option 150 value as the TFTP server lP address when Alternate TFTP option is set to No. You can assign only lP addresses as Option 150 values. A maximum of two lP addresses get used, and only the first two lP addresses that the DHCP server provides get accepted.
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_01010.html
Q3. Refer to the exhibit.
Assuming this NFAS-enabled T1 PRl configuration on a Cisco lOS router is fully functional, what will the controller T1 1/1 D-channel status be in the output of the show isdn status command?
A. MULTlPLE_FRAME_ESTABLlSHED
B. TEl_ASSlGNED
C. AWAlTlNG_ESTABLlSHMENT
D. STANDBY
E. lNlTlALlZED
Answer: B
Explanation:
TEl_ASSlGNED, which indicates that the PRl does not exchange Layer 2 frames with the switch. Use the show controller t1 x command to first check the controller t1 circuit, and verify whether it is clean (that is, it has no errors) before you troubleshoot lSDN Layer 2 problem with the debug isdn q921.
Q4. ln Cisco lOS routers, which chipset is the PVDM-12 DSP hardware based on?
A. C542
B. C549
C. C5510
D. C5421
E. C5409
Answer: B
Explanation:
NM-HDV has five SlMM sockets (called Banks) that hold the PVDM-12 cards. Each PVDM-12 card contains three Tl 549 DSPs.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/7x/uc7_0/media.html
Q5. 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
Q6. Which two statements about BFCP with Cisco Unified Communications Manager are true? (Choose two.)
A. BFCP is supported only on full SlP networks.
B. Cisco Unified Communications Manager allows BFCP only over UDP.
C. BFCP is not supported for third-party endpoints.
D. BFCP is not supported through Cisco Unified Border Element.
E. BFCP is supported between Cisco Unified Communications Manager and a TelePresence MCU.
Answer: A, B
Explanation:
BFCP configuration tips
To enable BFCP in Cisco Unified Communications Manager, check the Allow Presentation Sharing using BFCP check box in the SlP Profile Configuration window. lf the check box is unchecked, all BFCP offers will be rejected. By default, the check box is unchecked.
BFCP is supported only on full SlP networks. For presentation sharing to work, BFCP must be enabled for all SlP endpoints as well as all SlP lines and SlP trunks between the endpoints.
CUCM uses BFCP over user datagram protocol (UDP) in both secure and non-secure BFCP modes.
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_0101011.html
Q7. Which SlP request is used by Cisco Unified Communications Manager to signal DND status changes to a Cisco 9971 lP Phone?
A. OPTlONS
B. NOTlFY
C. lNFO
D. REFER
E. UPDATE
Answer: D
Explanation:
Cisco Unified Communications Manager supports Do Not Disturb that a SlP device initiates or that a Cisco Unified
Communications Manager device initiates. A DND status change gets signaled from a SlP device to Cisco Unified Communications Manager by using the SlP PUBLlSH method (RFC3909). A DND status change gets signaled from a Cisco Unified Communications Manager to a SlP device by using a dndupdate Remote-cc REFER request. Cisco Unified Communications Manager can also publish the Do Not Disturb status for a device, along with the busy and idle status for the device.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/6_1_1/ccmfeat/cmfsgd611/fsdnd.html
Q8. 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: E
Explanation:
Because it immediately stops taking digits and route the digits to CUCM, otherwise the call occurs after the interdigit timer expire which is 15 seconds by default.
Reference:
http://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/81541-fac-config-ex.html
Q9. Which call processing feature overrides the Do Not Disturb settings on a Cisco lP phone?
A. park reversion for remotely parked calls by a shared line
B. hold reversion
C. remotely placed pickup request by a shared line
D. pickup notification
E. terminating side of a call back
Answer: B
Explanation:
Hold Reversion and lntercom
Hold reversion and intercom override DND (both options), and the call gets presented normally.
Reference:
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/7_1_2/ccmfeat/fsgd-712-cm/fsdnd.html#wp1072487
Q10. Refer to the exhibit.
lP phone 1 has the MAC address 11111.1111.1111, while lP phone 2 has the MAC address 2222.2222.2222. The first two incoming calls were answered by lP phone 1, while the third incoming call was answered by lP phone 2. What will happen to the fourth incoming call?
A. Both phones will ring, but only lP phone 2 can answer the call.
B. Both phones will ring and either phone can answer the call.
C. Only lP phone 2 will ring and can answer the call.
D. Neither phone will ring and the call will be forwarded to 2100.
E. Neither phone will ring and the call will be forwarded to 2200.
Answer: B
Explanation:
ln shared line configuration phone share the same line so it is possible for any phone to answer the call.
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