READ Free Dumps For Cisco- 400-051
| Question ID 13019 | Refer to the exhibit.
The exhibit shows the Cisco IOS CLI output of debug ipdhcp packet, which was captured
on a router that is located at a branch office where a single IP phone is located. There is a
standalone Cisco Unified Communications Manager server at the central site, which also
provides DHCP services to the IP phone at the branch office. You are troubleshooting a
problem where the IP phone could not register to Cisco Unified Communications Manager.
You have confirmed that the IP phone received an IP address in the correct subnet and
with a correct subnet mask from the DHCP server. Assuming the IP phone is correctly
defined on Unified CM, which two statements about the network components are true?
(Choose two.)
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| Option A | The MAC address of the IP phone is 01ec44761e3e.
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| Option B | The IP address of the DHCP server is 10.101.15.1.
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| Option C | The MAC address of the VLAN 101 interface is ec44761e3e7d.
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| Option D | The IP address of the VLAN 101 interface is 10.101.15.1.
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| Option E | There is IP connectivity between the VLAN 101 interface of the branch router and the ip- helper address that is configured on this interface.
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| Option F | There is IP connectivity between the IP phone and the ip-helper address on the VLAN 101 interface.
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| Correct Answer | D,E |
Explanation Explanation: As we can see from the logs given first line relate that dhcp request is being relayed. So it clarifies there must be ip helper address commend given by the admin on interface vlan 101. Now we can see from the second line that giaddress is set as source address of vlan 101 by the dhcp as 10.101.15.1 to unicast the dhcp request
| Question ID 13020 | When DSP oversubscription occurs on a Cisco IOS router using DSP modules that are
based on the C5510 chipset, what will happen when an analog phone connected to a FXS
port goes off-hook?
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| Option A | A fast busy tone will be played.
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| Option B | A slow busy tone will be played.
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| Option C | A network busy tone will be played.
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| Option D | A dial tone will be played, but digits will not be processed.
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| Option E | No tone will be played.
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| Correct Answer | E |
Explanation Explanation: When DSP oversubscription occurs for both analog ports and digital ports, except PRI and BRI. FXO signaling and application controlled endpoints are not supported. This feature does not apply to insufficient DSP credits due to mid-call codec changes (while a call is already established).