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74-335 · Question #88

74-335 Question #88: Real Exam Question with Answer & Explanation

The correct answer is C. number of intersite calls through PSTN D. number of PSTN channels provisioned. Evaluate the following information, if available, for usage modeling: Number of PBXs implemented. (D) Number of public switched telephone network (PSTN) channels provisioned. (C) Number of any intersite tie connections between PBXs, or whether intersite calls are made through the

Question

Your company corporate telephony environment is a combination of Lync 2013 and traditional Private Branch Exchange (PBX). The company has three sites that are connected by a Multiprotocol Label Switching (MPLS) topology. There are 1,250 users who are using Lync 2013 and 2,250 users who are using the PBX environment. On average, the company has 3 percent of its users dialing in for conferences and 6 percent on a public switched telephone network (PSTN) call at any time. The company plans to remove the PBXs and have all users use only Lync 2013. You need to generate a usage model based on the existing data usage and real-time communications through all of the PBXs. Which two pieces of information should you collect when you performing usage modeling? (Each correct answer presents part of the solution. Choose two.)

Options

  • Anumber of peer-to-peer (P2P) calls over the MPLS network
  • Bnumber of calls that use RTAudio Wideband
  • Cnumber of intersite calls through PSTN
  • Dnumber of PSTN channels provisioned
  • Enumber of calls that use G.722

Explanation

Evaluate the following information, if available, for usage modeling: Number of PBXs implemented. (D) Number of public switched telephone network (PSTN) channels provisioned. (C) Number of any intersite tie connections between PBXs, or whether intersite calls are made through the PSTN. Number of users at each location. Call data records (CDRs) for PSTN traffic usage. Usage statistics, such as the maximum number of concurrent calls during the busy hour: uk.co.certification.simulator.questionpool.PList@985e4f9 not B: Internal Microphone (Conexant 20585 SmartAudio HD)

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