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标题: 642-453题库下载 [打印本页]

作者: windsss5013 时间: 2011-02-17 10:43
标题: 642-453题库下载
最新642-453题库分享1. Bob's Bicycles wants to route inbound faxes directly to the recipient's e-mail. Which gateway fax protocol will support this?A. Fax Pass-ThroughB. Fax RelayC. T.37D. T.38Answer: C2. You have a client who is planning to implement a toll bypass service for the PBXs. The organization has four locations and the PBXs are a mixture of QSIG-and non-QSIG-capable devices. Which type of services will be available between a QSIG and a non-QSIG PBX?A. The supplementary services on the non-QSIG PBX will be available to both devices.B. Only basic calls that do not require supplementary services are supported.C. The supplementary services supported by the QSIG PBX will be terminated by the gateway and translated to the non-QSIG PBX.D. The gateway will translate all the supplementary services for both PBXs.Answer: B3. A gateway is connected to the PSTN via eight analog circuits. Which two methods can be used to route calls across all eight circuits? (Choose two.)A. For each destination pattern, configure eight dial peers pointing to each port and use the preference command to select which port is used.B. Assign each port to a trunk group. For each destination pattern, configure a single dial peer pointing to the trunk group.C. Assign each port to a hunt list. For each destination pattern, configure a single dial peer pointing to the hunt list.D. For each destination pattern, configure a single dial peer. Use the port range command to select which port is used.E. For each destination pattern, configure eight dial peers pointing to each port and use the huntstop command to select which port is used.Answer: AB4. A Cisco voice gateway is connected to the PSTN via an analog line. How can the gateway be configured to support caller ID?A. using MGCP and an FXO port to the PSTNB. using H.323 and an FXO port to the PSTNC. using MGCP and an FXS port to the PSTND. using H.323 and an FXS port to the PSTNAnswer: B5. A gateway is going to provide media resources useable by three different Cisco Unified CallManager clusters. Which Cisco IOS structure makes this possible?A. applicationsB. service typesC. port numbersD. profilesAnswer: D6. You have a client who is designing a gateway solution for an IP communications network. The T1 needs to support ANI for both incoming and outgoing calls. How should the gateway be configured?A. Configure an MGCP gateway so that there are two DS-0 groups on the T1 from the PSTN, one to send ANI and one to receive ANI.B. Configure an H.323 gateway so that there are two DS-0 groups on the T1 from the PSTN, one to send ANI and one to receive ANI.C. Configure an MGCP gateway so that there is a single DS-0 group on the T1 to the PSTN, to both send and receive ANI.D. Configure an H.323 gateway so that there is a single DS-0 group on the T1 to the PSTN, to both send and receive ANI.Answer: B7. You need to provide support for 30 simultaneous calls from an offshore oil platform. The only circuit type available is an E1 R2 over a satellite link. Which type of signaling should be configured?A. DTMFB. r2-digitalC. r2-analogD. r2-pulseAnswer: D8. Which statement best describes FGD signaling?A. FGD uses a variant of E&M wink-start signaling with two winks. Address information is delivered after the initial wink and is acknowledged with a second wink.B. FGD uses FXS/FXO loop-start signaling. Caller ID is provided between the first and second ring and is sent as ASCII-encoded text.C. FGD uses FXS/FXO ground-start signaling. Caller ID is provided using DTMF.D. FGD uses E&M wink-start signaling. ANI delivery is supported by defining a CAS custom class to specify the delimiter used to distinguish DNIS and ANI.Answer: A9. Which analog trunk type configuration should be used for a connection to a PSAP for E911 services?A. FXOB. FXSC. FXS-DIDD. E&ME. CAMAAnswer: E10. ACME Appliances has several offices used only by field technicians. Since the offices are frequently unmanned, they require a DNIS to route inbound calls to technicians' mailboxes. Which option describes how their analog interfaces should be configured to support both inbound and outbound calling?A. FXO ports should be configured to support both inbound and outbound calling.B. FXO ports should be configured to support inbound calling through the DNIS and FXS ports should be configured to support outbound calling.C. FXS ports should be configured to support inbound calling through the DNIS and FXO ports should be configured to support outbound calling.D. Since inbound DNIS is only supported for digital circuits, ACME needs to upgrade their analog circuits to digital T1 circuits.Answer: C

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