1. Which of the following are the requirements to run a SIP softphone that supports only G. 711 on a remote PC?

2. Which of the following features is used when a call is delivered to the Automatic Call Distributor (ACD) from the PBX and then distributed to the next available agent?

3. Users in a remote location are reporting call setup failures while trying to establish a video conference. The remote video teleconference device is responding to pings without failures. Which of the following is MOST likely the cause?

4. Voice quality issues are reported between two remote sites that are connected via an IPSec VPN. The technician believes that the service provider network may be the cause of voice quality issues, and asks the service provider for packet loss, jitter, and delay statistics of the voice calls. Which of the following makes it impossible for the service provider to meet this request?

5. The ITU-T recommends that delay of voice traffic end -to-end be kept below:

6. A network administrator uses Network Address Translation (NAT) to allow domain users internet access via a single IP address. The administrator has found that Trojan horses are being allowed into the network through peer-to-peer (P2P) services that are allowed through open firewall port ranges. Which of the following components should be installed FIRST to help limit this type of rev erse attack method?

7. Which of the following is a purpose of a gatekeeper?

8. A technician, at a large call center with 500 agents working remotely from home, has gotten several complaints that users cannot login to their softphone. Which of the following would the technician check to verify that the users are not being blocked?

9. Which of the following devices will send out alerts when a possible LAN attack is in progress?

10. Which of the following would a technician have to consider when calculating the bandwidth required for VoIP applications?

11. Which of the following benefits does compression have wh en implementing a converged network?

12. Which of the following BEST describes how voice and data traffic reac t to excessive latency?

13. Which of the following trunk types supports wink start? (Select TWO)

14. Which of the following is used to measure the voice quality of codecs?

15. How many DS-0s comprise a DS-1 circuit?

16. Which of the following are protocols for call server-gateway interactions in an H. 323 environment? .

17. Which of the following codecs would be used to conserve bandwidth and will use the least overhead?

18. Which of the following features in ethernet switches eases the deployment of VoIP?

19. A remote site is located 3000 miles away from the main site. Users at the main site complain when dialing an extension at the remote site that several calls a day do not complete. Which of the following is the MOST likely cause?

20. Which of the following is the MOST common reason an enterprise would deploy Session Border Controllers (SBC)?

21. In a traditional telephony network, which of the following features enables the calls to be distributed directly to the end-user extensions in a PBX for calls coming in from the central office?

22. A company has IP Phones that are connected to an IEEE 802.3af, powered by the workgroup switch. Some IP hard phones have a PC port at the back of the phone to connect the users PC. Which of the following technologies provide a mechanism for authenticating access to the network fo r both the phone and the PC?

23. Which of the following IP telephony components sends an H. 225.0 Registration Confirm (RCF) message after a successful registration?

24. Which of the following basic commands will he lp identify network latency issues?

25. A company is considering merging two stand alone IP-PBXs into a single centralized system. Which of the following are advantages of consolidating these systems?