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Cisco Voice Over IP Sample Questions:

1. Examine the example output.
hostname GW1 ! interface Ethernet 0/0 ip address 172.16.2.1 255.255.255.0 h323-gateway voip interface h323-gateway voip id GK1-zone1.abc.com abc.com ipaddr 172.16.2.2 h323-gateway voip h323-id GW1 h323-gateway voip bind srcaddr 172.16.2.1 ! dial-peer voice 1 voip destination-pattern 1212. session-target ras ! dial-peer voice 2 pots destination-pattern 2125551212 no register e164 !
end
Choose the command that will restore communication with gatekeeper functionality to this device.

A) h323-gateway voip h323-id GK1
B) gateway
C) h323-gateway voip GW1-zone2.abc.com abc.com ipaddr 172.16.2.1
D) h323-gateway voip bind srcaddr 172.16.2.2

2. You are meeting with a customer that has deployed IP telephony at their headquarters
location. They would like to roll out IP telephony to their regional office as well. They are now using the G.711 codec at headquarters. They want to be able to maximize the number of calls carried without impacting voice quality or forcing a WAN upgrade. Which codec would be appropriate for their WAN?

A) G.711
B) G.729B
C) G.726
D) G.723.1

3. You are working with a potential customer that would like to integrate its existing PBX telephone system into its IP network. The accompanying figure shows that the customer has two offices that need to be connected to the IP network so that the customer can exchange telephone calls without using the PSTN. Both PBXs use Wink-Start signaling.
Which signaling type will allow you to support the customer?

A) CCS
B) E&M
C) QSIG
D) T-CCS
E) FXO
F) CAS

4. Which gateway interface connects to the standard station port of a PBX?

A) E&M
B) POTS
C) FXS
D) FXO

5. 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 leaving Site A 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 at either site to ten digits.

Solutions: