300-815 practice questions 11–20

1. Question 11 · 211 in bank

   Which section under the Real-Time Monitoring Tool allows for reviewing the call flow and signaling for a SIP call in real time?

   • AAnalysis Manager > Inventory > Trace File Repositories
   • BSystem > Tools > Trace and Log Central
   • CVoice/Video > Session Trace Log View > Real Time Data
   • DVoice/Video > Session Trace Log View > Open From Local Disk

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   Answer: C

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2. Question 12 · 211 in bank

   Which description of RTP timestamps or sequence numbers is true?

   • AThe sequence number is used to detect losses.
   • BTimestamps increase by the time "carrying" by a packet.
   • CSequence numbers increase by four for each RTP packet transmitted.
   • DThe timestamp is used to place the incoming audio and video packets in the correct timing order (playout delay compensation).

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   Answer: D

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3. Question 13 · 211 in bank

   A support engineer is troubleshooting a voice network. When conducting a search for call setup details related to calling search space issues, which trace files should be investigated?

   • ACallManager traces
   • BCTI Manager traces
   • CCisco IP Manager Assistant
   • DCall logs

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   Answer: A

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4. Question 14 · 211 in bank

   

   Refer to the exhibit. A user reports that when they call a specific phone number, no one answers the call, but when they call from a mobile phone, the call is answered. The engineer troubleshooting the issue is expecting the far-end gateway to cut through audio on the 183 Session Progress SIP message. Which SIP Profile configuration element is necessary for the Cisco Unified Communications Manager to send acknowledgement of provisional responses?

   • AAllow Passthrough of Configured Line Device Caller Information must be enabled.
   • BAccept Audio Codec Preferences in Received Offer must be set to On.
   • COn the SIP Profile, the configuration parameter SIP Rel1XX Options must be set to Send PRACK for all 1xx Messages.
   • DEarly Offer for G Clear Calls must be enabled.

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   Answer: C

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5. Question 15 · 211 in bank

   Select 2

   A company has an SRST gateway running an IOS XE image. The company plans to enable the IPv6 addressing companywide. To enable the IPv6 in a unified SRST gateway to support SIP phones, what are two supported supplementary features for an IPv6 fallback scenario? (Choose two.)

   • Athree-way conference
   • Bsecure SIP lines
   • CT.38 fax relay
   • Dtranscoding
   • ESIP trunk

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   Answer: AC

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6. Question 16 · 211 in bank

   Which action is correct with respect to toll fraud prevention configuration in the Cisco Unified Communications Manager Express?

   • AConfigure Direct Inward Dial for Incoming ISDN Calls with overlap dialing.
   • BConfigure IP Address Trusted Authentication for Incoming VoIP Calls.
   • CConfigure the command no ip address trusted authenticate under "voice service voip".
   • DEnable Secondary Dial tone on Analog and Digital FXO Ports.

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   Answer: B

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7. Question 17 · 211 in bank

   You see the voice register pool 1 command in your Cisco Unified Communications Manager Express configuration. Which configuration is occurring in this section?

   • Aconfiguration for a single SIP phone
   • Bconfiguration items common for all SIP phones
   • Cconfiguration for a pool of SIP phones (similar to device pool on Cisco Unified Communications Manager)
   • Dconfiguration for SIP registrar service

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   Answer: A

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8. Question 18 · 211 in bank

   Which top-level IOS command is needed to begin the configuration of a Cisco Unified Communications Manager Express gateway to enable phones to be registered via SIP?

   • Aallow-connections sip to sip
   • Bvoice service voip
   • Cvoice register global
   • Dvoice register dn

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   Answer: B

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9. Question 19 · 211 in bank

   For s SIP to SIP call flow, when does Cisco Unified Border Element require transcoding resources for DTMF?

   • Ainterworking between an OOB method and RFC2833 for flow-around calls
   • Binterworking between h245-signal and rtp-nte
   • Cinterworking between an OOB method and RFC2833 for flow-through calls
   • Dinterworking between h245-alpha numeric and sip-kpml

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   Answer: A

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10. Question 20 · 211 in bank

    Where is the dtmf-relay command configured on Cisco Unified Border Element?

    • Ain the voice-class VoIP configuration
    • Bin the VoIP dial peer
    • Cin global SIP configuration
    • Din the VoIP or POTS dial peers

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    Answer: B

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300-815 practice, question 11. 211 questions available.