642-432 試験問題を無料オンラインアクセス

What does a gateway router match to a dialed number when setting up a VoIP call?

• A.destination pattern
• B.call leg
• C.IP route
• D.session target

Which option is true concerning the MGCP call agent?

• A.monitors the quality of each call after setup
• B.acts only as a recorder of call details
• C.provides only call signaling and call setup
• D.manages all aspects of the call and voice stream

In the connection between a Cisco router and an E&M port on a PBX, which side is generally the Cisco side?

• A.trunk circuit
• B.signaling unit
• C.loop start
• D.switch port

Site A uses three-digit internal numbers and Site B uses four-digit internal numbers.
All calls to the PSTN are routed through Site B.
What dial plan below best represents provision simplicity?

• A.Translate all called numbers at either site to ten digits.
• B.Translate all called numbers within Site A to four digits.
• C.Translate all called numbers within Site B to three digits.
• D.Translate all called numbers leaving Site A to ten digits.

What is the best description of an MGCP endpoint?

• A.any analog telephony device (PBX, switch, etc.)
• B.the gatekeepers in a VoIP network
• C.IP phones
• D.the interconnection between packet and traditional telephone networks