Which characteristics apply to multilayer switching? (Choose three.)
- Uses CPU-based packet forwarding
- Performs collision detection
- Provides isolation of the collision domain
- Provides Network-layer and Transport-layer access controls
- Determines the forwarding path based on the Network layer address
Multilayer switching characteristics include determining the forwarding path based on the Network layer address (Layer 3), providing isolation of the collision domain (Layer 2); and providing Network-layer and Transport-layer access controls (Layers 3 and 4).
Multilayer switching combines the functionalities of Layer 2 switching and Layer 3 switching. Layer 3 switching is routing performed by hardware, specifically by utilizing application-specific integrated circuits (ASICs). The Layer 3 switch can perform all of the basic operations of traditional routers, including the following:
- Path selection based on the packet’s Layer 3 protocol information
- Layer 3 packet validation
- Flow accounting (Layers 3 and 4)
- Layer 3-based access controls and security
In contrast to Layer 2 switches, which provide the benefits of bridging, Layer 3 switches offer another high-performance packet switching solution.
CPU- based packet forwarding and collision detection are not unique characteristics of multilayer switching. CPU-based packet forwarding is not a concept used by routers or switches. Collision detection is a characteristic of Ethernet, which is not unique to multilayer switching.
Layer 2 Technologies
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