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Exam
: Nortel 920-245
Title
: Ethernet Switching
Version : Demo
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1. Which three switches support auto Media Dependent Interface Crossover (MDI/MDIX)? (Choose three.)
A. Ethernet Switch 425
B. Ethernet Switch 450
C. Ethernet Switch 460
D. Ethernet Switch 470
E. Ethernet Routing Switch 5510
Answer: ADE
2. Which Ethernet Routing Switch QoS feature ensures that the lower six egress queues are serviced in a
fair, yet weighted manner?
A. WRR
B. WFQ
C. DSCP
D. TCP/UDP
Answer: A
3. Which route type in the Ethernet Routing Switch 8600 routing table provides additional routes for faster
convergence in case of network/link failures?
A. best
B. direct
C. MPLS
D. ECMP
Answer: D
4. Which actions should be performed during a configuration of a QoS policy for a trusted interface?
A. drop traffic to a port
B. change of DSCP value
C. modification of 802.1p value
D. alteration of the drop precedence
Answer: A
5. Given the conditions:
Left LED - green
Right LED - flashing green
On an Ethernet Routing Switch 8648TXE/M 10/100 Ethernet I/O module, what is the status of a port that is
displaying the LED conditions described above?
A. Link speed is 10 Mbps and the port is disabled.
B. Link speed is 100 Mbps and the port is disabled.
C. Link speed is 10 Mbps and the port is passing traffic.
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D. Link speed is 100 Mbps and the port is passing traffic.
Answer: D
6. A customer with an Ethernet Switch 470-24T wants to configure MAC address-based security. Given that
they can create up to 10 MAC Destination Addresses (DA) to filter, how are all packets with specified DAs
treated?
A. All packets with specified DAs are dropped.
B. All packets with specified DAs are dropped based on ingress port.
C. All packets with specified DAs are dropped based on VLAN