642-437無料問題集「Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)」

質問 1

Which command should you use to activate the analog voice port in voice-port configuration mode?

（A）voice-port slot/ port

（B）cptone locale

（C）dial-type {dtmf | pulse}

（D）no shutdown

正解：D 解答を投票する

質問 2

Calls are failing to reach the E1 PRI circuit on the PSTN gateway. Which command would be useful in determining if the dial peers are configured properly?

（A）debug isdn q921

（B）debug voice circuit

（C）debug voice dial-peer

（D）ccapi inout

（E）show controller e1 0/0/0

正解：C 解答を投票する

質問 3

What are two advantages of deploying dual VLANs on an access layer switch that connects to an IP phone? (Choose two.)

（A）Dual VLANs allow for the logical separation of data and voice traffic, which allows the network to process these two traffic types individually.

（B）This is the default state when an IP phone is connected to an unconfigured Cisco Catalyst switch.

（C）Implementing dual VLANs allows you to connect two devices that are in different VLANs to a single switch port.

（D）It is typically used for IP phones that are not Cisco IP phones, IP softphones, or when Cisco IP phones or other Cisco voice devices (such as the Cisco VG248 Analog Phone Gateway) do not support PCs to be connected to them.

（E）There are no advantages if a Cisco IP phone has a PC attached. Both the voice and data services should be in the same VLAN.

正解：A、C 解答を投票する

質問 4

Which Session Initiation Protocol server role is given to the component that implements a mechanism to resolve addresses?

（A）Naming server

（B）Session Initiation Protocol router

（C）Session Initiation Protocol proxy

（D）Location server

正解：D 解答を投票する

質問 5

Which version of Cisco Unified Communications Manager Express is recommended that is supported on endpoints running Cisco IOS 15.0(1)M?

（A）7.1

（B）7

（C）8

（D）8.5

正解：A 解答を投票する

質問 6

Which QoS methodology combines strict priority queuing with class-based weighted fair queuing?

（A）IP RTP Priority

（B）Multilink PPP

（C）RSVP

（D）IP Frame Relay RTP Priority

（E）LLQ

正解：E 解答を投票する

質問 7

Digital signal processors offload media processing functions from voice processing equipment. What is the function of the dsp services dspfarm command that is issued under the voice-card configuration mode?

（A）Takes the DSP resources that are not being used for the voice part and assigns them to a farm.

（B）Enables profile failed due to insufficient transcoding resources.

（C）Permits the codec rate to be attempted for SCCP-controlled connections.

（D）Provides resources for Flex-DSPRM status UP.

正解：A 解答を投票する

質問 8

Which QoS technology provides a strict priority queuing scheme that allows delay-sensitive data such as voice to be dequeued and sent before packets in other queues are dequeued, and also works with WFQ and CBWFQ.

（A）IP RTP Priority and Frame Relay IP RTP Priority

（B）FRF.12

（C）RSVP

（D）header compression

（E）low latency queuing

正解：A 解答を投票する

質問 9

What is the function of the command crypto pki trustpoint name when you are configuring Cisco Unified Border Element for SRTP-RTP Internetworking?

（A）It declares the trustpoint that the router uses and enters CA-trustpoint configuration mode.

（B）It obtains the certificate for the router from the CA.

（C）It specifies the key pair to associate with the certificate.

（D）It specifies the enrollment parameters of a CA.

正解：A 解答を投票する

質問 10

Which QoS mechanism for VoIP works with weighted fair queuing (WFQ) and class-based weighted fair queuing (CBWFQ)?

（A）IP RTP Priority and Frame Relay IP RTP Priority

（B）FRF.12

（C）Header compression

（D）Multilink PPP

（E）RSVP

正解：A 解答を投票する

質問 11

The command address-hiding is entered to enable the SIP-to-SIP address hiding feature. In which configuration mode is this command entered?

（A）Cisco Unified Border Element configuration mode

（B）VoIP dial-peer configuration mode

（C）SIP configuration mode

（D）voice service VoIP configuration mode

正解：D 解答を投票する

質問 12

DRAG DROP
Drag the appropriate IOS command from the left and drop them in the spaces on the right in order to configure Cisco Unified Border Element. The ITSP does not support early offer. Not all boxes are used.

正解：

Cisco 642-437 Exam
Explanation:
Voice Service Voip Allow-Connections sip to h323 Allow-Connections h323 to sip H323 Call Start Interwork SIP
Configuring an IP IP Gateway: Call direction and translation section voice service voip - Enters VoIP voice-service configuration mode allow-connections from-type to to-type - Allows connections between specific types of endpoints in an Cisco Unified Border Element. Arguments are as follows:
from-type - Type of connection. Valid values: h323, sip.
to-type - Type of connection. Valid values: h323, sip.
Main protocol section h323 call start interwork - Enables slow-start to fast-start interworking sip
http://www.cisco.com/en/US/docs/ios/voice/cube/configuration/guide/vb-gw-config.html
Cisco 642-437 Exam

642-437 無料問題集「Cisco Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0)」

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