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Interview Questions: Cyber Security Graded A+ 2024
Interview Questions: Cyber Security Graded A+ 2024 
What port does ping work over? It doesn't. Ping is ICMP, which is layer 3. Ports are not used until 
layer 4 which handles UDP and TCP. 
What OSI layer does a router work at? The Network Layer, which is the layer that handles switching, 
routing, and addressing. 
Describe Layer 1 of the OSI model Physical Layer 
Description: Holds the bit streams and electronic impulses over cables, air, or other medium that 
transmits bit stream signa...