Latest CCNP 642-637 Real Exam Download 1-10



Which three Cisco IOS commands are required to configure a voice gateway as a DHCP server to support a data subnet with the IP address of and a default gateway of (Choose three.)


A.      ip dhcp pool

B.      subnet

C.      ip dhcp pool data

D.      network

E.       network

F.       default-gw

G.      default-router


Answer: C,E,G




Which four Cisco IOS commands are required to configure a DHCP server on a voice gateway to support a voice subnet so that both IP addresses and the IP address of the TFTP server are provided? The voice subnet has an address of, the default gateway is, and the TFTP server is located at (Choose four.)


A.        subnet

B.        ip dhcp pool voice

C.        default-router

D.        option 150

E.         network

F.         dhcp pool voice

G.        option 150 ip

H.        default-gw


Answer: B,C,E,G




The router with the IP address of needs to be configured to use the device as the clock source. Which configuration command will accomplish this task?


A.      clock source

B.      ntp server

C.      clock set

D.      ntp source ip addr

E.       ntp client server


Answer: B




Which four types of ephone-dns are supported by SCCP in Cisco Unified Communications Manager Express? (Choose four.)


A.        single-line

B.        dual-line

C.        shared-line, nonexclusive

D.        two directory numbers with one telephone number

E.         dual-number

F.         octo-line


Answer: A,B,E,F




In which situation would an administrator configure telephony services, but not configure any individual ephones?


A.      Phones that are controlled by Cisco Unified Communications Manager Express

B.      Cisco Unified Communications Manager SRST fallback

C.      Cisco Unified Communications Manager Express with HSRP

D.      Remotely located phones that are controlled by a third-party PBX

E.       This is not a valid scenario. Ephones are always required.


Answer: B




Refer to the exhibit. Which type of ephone-dn is configured for the two ephones that are shown?


A.      single-line-octo

B.      hunt line

C.      shared-line, nonexclusive

D.      two directory numbers with one telephone number

E.       shared-line, overlay

F.       octo-line


Answer: E




Refer to the exhibit.

clip_image004A new Cisco Unified Communications Manager Express system has been deployed and the technician is trying to add the first new IP phone to the system. The phone powers up, but it does not register with the system. The technician has verified that the phone is getting the proper VLAN information from Cisco Discovery Protocol. The phone is also getting the correct IP address and TFTP server address from DHCP. The phone has been assigned to an ephone and the correct MAC address is configured. With the information provided, which two of the following does the administrator need to verify to resolve this situation? (Choose two.)


A.      Verify that the ip helper-address is correctly configured.

B.      Verify that telephony-service has been configured.

C.      Verify that the ephone has a button assigned.

D.      Verify that the tftp-server path has been configured.

E.       Verify that the Cisco Unified Communications Manager Express service is running.

F.       Verify that the correct phone type files are in the tftp-server path.


Answer: D,F




The administrator has added a new ephone-dn and a new ephone to the Cisco Unified Communications Manager Express system, but the new phone will not register with the system. If other phones are operating properly, which of the following should the administrator do first to try to resolve the issue?


A.      Reboot the router.

B.      Remove the ephone, then re-add the ephone.

C.      Verify that the url authentication is configured for the correct authentication URL.

D.      Verify that the url services is configured to the correct URL for services.

E.       Enter the command no telephony-service, then enter telephony service in global configuration mode.

F.       Enter the command no create cnf-files, then enter create cnf-files under the telephony-service configuration.


Answer: F




Refer to the exhibit.


Cisco Unified Communications Manager Express has been partially configured to support 6 IP phones and 12 directory numbers. The Cisco Unified Communications Manager Express will use the IP address Which two elements of the configuration are missing from the command output and need to be added so that phones do not auto-register, but can manually register with Cisco Unified Communications Manager Express? (Choose two.)


A.      ip address

B.      no reg-ephone

C.      create profile

D.      ip source-address

E.       create cnf-files

F.       no auto-reg-ephone


Answer: D,F




Which three functions are associated with MGCP? (Choose three.)


A.      Control is implemented by a series of plain-text commands that are sent over UDP port 2427 between Cisco Unified Communications Manager and the gateway.

B.      A PRI backhaul channel forwards PRI Layer 2 (Q.921) signaling information via a TCP connection from the gateway to the call agent.

C.      MGCP uses a separate channel for backhauling signaling information between the call agent and the gateway.

D.      The gateway maintains a separate dial plan for redundancy in case the call agent fails.

E.       Users query the call agent to determine the location of the call recipient.

F.       A call agent uses control messages to direct its gateways and their operational behavior.


Answer: A,C,F



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