920-443 Exam

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Exam : Nortel 920-443
Title : NNCSE-Succession 1000/1000m Rls.3.0


1. Given the following information: ?A company has a multi-site Succession 1000/1000M Rls. 0 system providing IP-PBX services. ?All Succession systems are networked via a managed IP backbone. ?On one of the Succession 1000/1000M Rls. 0 systems, a small department is using four i2050 softphones. ?The PC is connected to the Succession network and can ping the IP Telephony node. ?The i2050 configuration tool is configured with the correct IP Telephony node IP address. ?One of the i2050s is NOT working and its screen has the legend, ? ZRUNLQJDQGLWVVFUHHQKDVWKHOHJHQG Server unreachable ? ?To isolate the i2050 issue the following tasks were verified: ?The PC is connected to the Succession network and can ping and be pinged. ?The i2050 IP address is correct. ?The programming of the Call Server is correct. Which two tasks should you perform next to resolve the i2050 softphone registration issue? (Choose two.)
A. Verify that the Telephony LAN (TLAN) connection is a 100Base-T connection.
B. Use a Sniffer to collect more information to help determine what is the cause of the i2050 issue.
C. Reload the i2050 software and carefully review the displays as the software loads to the i2050.
D. In the i2050 Configuration Utility on the QoS tab, select the Off option and restart the i2050 softphone.
E. Use the i2050diag.exe Utility to verify that the QoS tab is set to Off and restart the i2050 softphones.
Answer: BD

2. A company with a multi-site Succession 1000/1000M Rls. 3.0 deployment is receiving reports from its users in the payroll department of audible clicks and choppy speech on most telephone calls during peak calling hours. Given the following information: ?The voice quality issues occur when calls are made through a common Voice Gateway Media Card (VGMC). ?All users have i2004 Internet Telephones that are connected to a Layer 2 switch. ?Users access the Succession system via the network through a 512 kbps Point-to-Point Protocol (PPP) connection that is four hops away. ?Internet Telephone > Layer 2 switch > router > 512 kbps PPP > router > Layer 2 switch > VGMC ?The Layer 2 switches were recently configured to give voice traffic using IEEE802.1p tagging priority. ?Traffic studies reveal an average Round Trip Delay (RTD) of 130 ms with a G.729A CODEC and a 1.0% packet loss measured over a week. Which three QoS techniques could you perform to improve voice quality? (Choose three.)
A. Replace the common VGMCs.
B. Adjust the echo canceller tail delay value.
C. Adjust the jitter buffer size in the selected CODEC.
D. Enable Layer 3 fragmentation on the routers to reduce RTD.
E. Configure QoS on the routers by implementing IEEE 802.1p tagging.
F. Configure QoS on the routers by implementing Differentiated Services Code Point (DSCP).
Answer: CDF

3. Given the following information: ?A company has a multi-site Succession 1000M Multi-Group Rls. 3.0 system providing IP-PBX services. ?All Succession systems are networked via a managed IP backbone. ?All systems have i2002 Internet Telephone users. ?All users at one site report they are unable to dial any external users through the Public Switched Telephone Network (PSTN). ?There are NO reported problems with dialing any internal i2002 Internet Telephone user. ?Troubleshooting confirmed that these i2002 Internet Telephones are registered. What is the first step in troubleshooting this issue?
A. Restart the i2002 Internet Telephones only.
B. Uninstall the i2002 software and then reinstall it.
C. Restart the Signaling Server and the i2002 Internet Telephones.
D. Enable the VGMC in Overlay LD 32 and verify that all the DSP channels are registered.
Answer: D

4. A multi-site Succession 1000/1000M Rls 3.0 system has just been networked to a third-party H.323 Gateway via IP Peer Networking. During call testing, it was discovered that NO Succession telephone calls can be completed to this third-party Gateway. Which three actions will determine the root cause or lead to the resolution of this call issue? (Choose three.)
A. Verify the data network integrity to the third-party Gateway.
B. Verify that the H.323 Signaling Gateways in both systems are running and registered with their appropriate H.323 Gatekeeper.
C. Verify that the telephone(s) used for testing are compatible with this Gateway. If NOT, change to a H.323 compatible telephone.
D. Verify that the H.323 Signaling Gateway application is installed and running on the Signaling Server in this system and in the third-party system.
Answer: ABD

5. A company has a Succession 1000 Rls. 3.0 system with Voice Gateway Media Cards (VGMCs). These cards are configured via the Optivity Telephony Manager (OTM) Alarm Notification application. The VGMCs send alarms in the form of Simple Network Management Protocol (SNMP) traps to the customer OTM Server. The customer noticed a frequent occurrence of the TG0204, DSP device reset? ? 7*'63GHYLFHUHVHW error on the same Digital Signal Processor (DSP) in the OTM Alarm Notification application. What is the next step in troubleshooting this issue?
A. Replace the VGMC.
B. Reset the Signaling Server.
C. Restart the Succession switch.
D. Do Nothing. This is an information error, which shows that the DSP was reset after it failed to respond.
Answer: A

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