Components of LAN (Repeater/Hub/Switch/Bridge/Router)- Point to Remember

Point to remember for CISA Exam:

CISA aspirant should be aware about layer of OSI at which below devices operate.

Hub – Physical Layer (1^st Layer)

Switch – Data Link Layer (2^nd Layer)

Bridge – Data Link Layer (2^nd Layer)

Router – Network Layer (3^rd Layer)

Gateway-Application Layer (7^th Layer)

 

It must be noted that higher the layer, more intelligent the devices will be. Out of above Hub (layer 1) is dumbest device and Gateway (layer 7) is the most intelligent device.