A network engineer deploys a Layer 2 switch to connect 24 host workstations within a single IP subnet. The switch connects upstream directly to a single Ethernet interface on a enterprise router. Assuming standard full-duplex switch port configurations and no VLAN segmentation, how do the Layer 2 switch and the router function regarding collision domains and broadcast domains for this segment?
- The Layer 2 switch provides an independent collision domain on each port, creating 25 total collision domains, while the router interface bounds the segment into a single broadcast domain.Cevap
- BThe Layer 2 switch divides the connected hosts into 25 distinct broadcast domains, while the router interface consolidates all traffic into a single collision domain.
- CThe Layer 2 switch maintains a single collision domain across all ports, while the router interface creates 25 individual broadcast domains.
- DBoth the Layer 2 switch and the router maintain a single shared collision domain and a single shared broadcast domain across the entire subnet.
Cevap
The Layer 2 switch isolates collision domains per port (25 total), while the router interface defines a single broadcast domain boundary.
Layer 2 switches process frames at the Data Link layer, providing dedicated bandwidth and isolating collision domains on each individual port. Because there are 24 host links plus 1 router connection, 25 collision domains exist. Routers operate at Layer 3 and stop Layer 2 broadcasts from traversing to other interface segments, creating a single broadcast domain boundary for the subnet.
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Collision and Broadcast Domain Separation across Layer 2 Switches and Routers