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Exam : Nortel 920-463
Title : Ethernet Switching Design Expert


1. While defining your client's IST VLAN between the pair of Ethernet Routing Switch 8600s, you have chosen IP subnet addresses from a valid address set. Is it necessary to enable a routing protocol on the IST VLAN IP interface?
A. A routing protocol may be used, but it is not necessary.
B. When grouping Inter Switch Trunks into a VLAN, a routing protocol must always be used.
C. In order for the Split Multi-Link Trunking (SMLT) switches to detect a failure, a routing protocol must not be enabled.
D. As the number of Inter Switch Trunks grouped into the VLAN increases, the requirement for routing protocol becomes more apparent.
Answer: A

2. What is the most valuable benefit of using Routed Split Multi-Link Trunking (RSMLT) in a network design?
A. The ability to eliminate network loops.
B. It enables network servers to be dual-homed.
C. The network can be configured to use the most efficient path.
D. It provides sub-second failover in the routed part of the network.
Answer: D

3. A customer is designing a new high availability network and has decided to install a pair of Ethernet Routing Switch 8600s in a hot standby VRRP configuration. Router 1 will be the Master and will have an IP address of 192.168.10. Router 2 will be the slave with an IP address of 192.168.10.2. The virtual router's IP address will be 192.168.10.3. What should be the default gateway when configuring the network settings on all Microsoft Windows workstations at this location?
A. 192.168.10.0
B. 192.168.10.1
C. 192.168.10.2
D. 192.168.10.3
Answer: D

4. Your customer's dual-homed Routed Split Multi-Link Trunking (RSMLT) network, using two Ethernet Routing Switch 8600s, requires additional edge switches to accommodate growth. Their 100 existing ports must grow to 180 total active ports. Existing records show that IEEE 802.3ad Link Aggregation Control Protocol (LACP) is used throughout the network. As you develop this customer's design, which requirement becomes apparent?
A. Only 128 attached devices are supported by an SMLT dual-homed solution.
B. LACP functions reliably with Split Multi-Link Trunking (SMLT) single port configurations only.
C. Distributed MLT (DMLT) links are required to support LACP on the Ethernet Routing Switch 8600.
D. The edge switches need not possess any SMLT intelligence but must be able to perform link aggregation.
Answer: D

5. Click the Exhibit button.
A customer has a stack of Ethernet Switch 460s connected to its two core switches (Ethernet Routing Switch 8600s). These Ethernet Switch edge switches are used to aggregate workstations and other devices delivering mission critical data to the network core.
Which configuration should you recommend to ensure fast failure recovery while maximizing the available bandwidth?
A. 1) Disable the Spanning Tree Protocol (STP) on the edge aggregation ports to avoid network looping.
2) Enable STP on core uplink ports to avoid blocking links.
3) Enable IEEE 802.1q tagging on uplink ports.
B. 1) Configure Distributed MLT (DMLT) on the edge switches and enable SMLT at the core.
2) Enable IEEE 802.1q tagging on the MLT ports and enable Virtual Router Redundancy Protocol (VRRP) at the core.
C. 1) Configure the edge switches into three separate VLANs.
2) Configure Multi-Link Trunking (MLT) on each of the edge switches and Split Multi-Link Trunking (SMLT) on the core switches.
3) Enable IEEE 802.1q tagging on the MLT ports.
D. 1) Configure the edge switches into three separate VLANs.
2) Ensure that each VLAN has its own Spanning Tree Group (STG).
3) Make Ethernet Routing Switch 8600-1 the primary link for Ethernet Switch #1 and #3, and make Ethernet Routing Switch 8600-2 the primary link for Ethernet Switch #2.
4) Enable Virtual Router Redundancy Protocol (VRRP) backup-master on the core switches.
Answer: B