Fill in the device(s) column of Table 1 with the device being described. You can

Question

Fill in the device(s) column of Table 1 with the device being described. You can fill in the table with hub, switch, and router. Note that more than one device might be appropriate for a characteristic, and that level-3 switches are NOT considered.

characteristic device(s) Operates at layer 1 of the OSI model Operates at layer 2 of the OSI model Operates at layer 3 of the OSI model Filter traffic based on MAC addresses Creates separate broadcast domains Connects hosts in a physical “star” topology Forwards broadcast traffic Filters traffic based on logical addresses Associated with the term “microsegmentation” creates subnetworks Connects hosts in a logical “bus” topology Creates separate collision domains

Explanation / Answer

Operates at layer 1 of the OSI model       :       Hub           Hub is a layer 1 device. Which forwards the traffice received on it onto all nodes
Operates at layer 2 of the OSI model       :       Switch       Switch is a layer 2 device which operates on layer 2 address
Operates at layer 3 of the OSI model       :       Router       Router is a layer 3 device which operates on network addresses
Filter traffic based on MAC                   :       Switch       Switch operates on MAC
Creates seperate broadcast domain           :       Router       Each interface in a router is a separate broadcast domain
Connects hosts in physical star               :       Hub/Switch   Both switch and hub form physical star, logical bus
Forwards broadcast traffic                   :       Hub/Switch   Both switch and hub forwards broadcast traffic
Filters traffic based on logical address   :       Router       Router works on ip address
Associate with term micro segmentation       :       Router       It's a layer 3 process
Create subnetworks                           :       Router       Each interface on a router is on separate network
connects hosts in a logical bus               :       Hub/Switch  
Creates seperate collision domains           :       Switch/Router   Each interface on both switch and router are separate collision domains

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