CompTIA Convergence+ Set 2

1.

Which term BEST describes a PBX which uses TDM and IP technology for calls?

Hybrid IP based Internet based TDM based

2.

DiffServ can be used to:

specify voice and video traffic only. create access tables to deny traffic. mark traffic going to the Public Switched Telephone Network (PSTN). specify traffic types for prioritization.

3.

Which of the following needs to be completed prior to setting up a single WAN link between two sites that will carry voice and data?

Traffic studies on the number of analog trunks used at peak hours. Traffic studies to determine the number of IP trunks used per day. Traffic studies to determine the bandwidth need for the voice and data traffic during peak hours. Traffic studies to determine when the traffic will be sent across the WAN during non -peak hours.

4.

Which of the following are used to prioritize traffic across a WAN IP network?

RIP OSPF DiffServ BGP

5.

Which of the following must take place in order for a digital phone to communicate with an IP phone?

The dial plan must connect the digital phone to the IP bus. The phone system will have to convert the voice from TDM to IP. A dial plan must be established to identif y the IP phone to the system. The IP phone will have to convert the voice from IP to TDM.

6.

A technician finds that IP voice quality gets worse during certain times of the day in the VoIP ready network, the technician should want to:

reboot the network whenever the problem occurs to clear the cache on each network switch. define better traffic shaping and QoS policies. add more switches to the network. decrease the number of calls that can be sent across the network based on the time of day.

7.

The MOST common DiffServ value for VoIP is:

40 42 44 46

8.

Which of the following is the BEST compression rate for sending voice over VPN through the internet when bandwidth is limited?

G. 726 G. 711MuLAW G. 729a G. 727

9.

Which of the following is an example of TOLL Fraud?

An outside caller gains access to a company directory from the voicemail system. An outside caller gains access to a company's fax machine from the voicemail system. An outside caller gains access to a company's voicemail system from a long distance line. An outside caller gains access to a company's long distance line from the voicemail system.

10.

A technician is going to deploy a voice system with 5 users. Which of the following types of trunks would the technician MOST commonly connect to the Public Switched Telephone Network (PSTN) when cost is a factor?

SIP trunk Fractional T1 H. 323 trunk Analog Trunks

CompTIA Convergence+ Set 2

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CompTIA Convergence+ Set 2

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