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Exam : Nortel 920-220
Title : Nortel Converged Campus ERS Solution


1. Which multicast technology used with the Ethernet Routing Switch allows the router to determine whether any group members exist on its directly-attached networks and switches?
A. IGAP
B. IGMP
C. DVMRP
D. PIM-SM
Answer: B

2. The Redundant Power Supply 15 (RPS15) will provide protection against which failure scenario?
A. rolling blackouts
B. power loss to the entire building
C. failure of the primary AC power supply on the switch
D. regional power surges and drops
Answer: C

3. A customer is using an Ethernet Routing Switch (ERS) 8300 to provide Power-over-Ethernet (PoE). They have recently purchased a number of devices that require PoE, and need to increase the PoE capacity on the 8300. They currently have one 8302AC power supply in the 8300 chassis and are not concerned with redundancy. Which procedure is required to provide the most amount of power?
A. Install two additional 8301AC power supplies connected to 220V input.
B. Install one additional 8302 AC power supply connected to 220V input.
C. Install two additional 8302 AC power supplies connected to 220V input.
D. Install three 8301AC power supplies connected to 220V input.
Answer: D

4. A customer is implementing Ethernet Routing Switch (ERS) 5500 series. The deployment scenario requires fiber links that will support 10 Gbps transmission speeds to a Data Center 30 Km away. Which switch and transceivers meet this requirement?
A. ERS 5510 with 10GBASE-ER XFP transceivers
B. ERS 5530 with 10GBASE-SR XFP transceivers
C. ERS 5520 with 10GBASE-SR XFP transceivers
D. ERS 5530 with 10GBASE-ER XFP transceivers
Answer: D

5. A network employs the autonegotiation feature, and you are getting many Excessive Frame Check Sequence (FCS) errors. What is the probable cause for these errors?
A. RFI and FEFI for 100-FX connections is enabled.
B. Autonegotiation on the server and corresponding switch port is disabled.
C. Autonegotiation on one end of the link is enabled and disabled on the other end.
D. Autonegotiation on the switch-to-switch ports is enabled.
Answer: C

6. A customer is implementing video conferencing devices that require Power-over-Ethernet (PoE). They are planning to use an Ethernet Routing Switch (ERS) 8310 chassis for this deployment. They would also like to install 8600 modules in the chassis. Which statement about this customer scenario is true?
A. Both PoE and 8600 modules are supported in the 8310 chassis.
B. Neither PoE or 8600 modules are supported in the 8310 chassis.
C. The 8310 chassis does not support PoE, but will support 8600 modules.
D. PoE can be supplied via the 8310 chassis, but will not support 8600 modules.
Answer: D

7. A network configuration is using MLT-based SMLT switch clustering. You want to simplify troubleshooting on the network. Which network design practice will help simplify troubleshooting operations?
A. Verify that all VLANs participating in SMLT are tagged on both ends of the IST.
B. Distribute physical IST connections between different modules in the chassis.
C. Use the same ID number for the MLT group and corresponding SMLT group.
D. Make sure that the VLACP timers are set to the same value on both ends of the link.
Answer: C

8. A customer needs a network architecture that provides sub-second failover and that ensures that multimedia and IP telephony will function flawlessly in the event of a single point of network failure. Which network design feature would you recommend?
A. Switch clustering with SMLT
B. Autonegotiation
C. Link Aggregation Protocol
D. Distributed MLT
Answer: A

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