CyberCertPrepNetwork FundamentalsOSI & TCP/IP ModelsEASYFree question
A help-desk technician uses the 'ipconfig /all' command on a Windows PC. This is a Layer __ diagnostic tool because it shows IP address, subnet mask, default gateway, and MAC address.
- A.Layer 4 (Transport: TCP and UDP segments)
- B.Layer 7
- C.Layer 1 (Physical: bits, signaling, media)
- D.Layer 2 and Layer 3
Why D is correct
ipconfig /all displays: MAC address (Layer 2 Data Link), IP address, subnet mask, default gateway (Layer 3 Network), DHCP server, DNS servers. It spans Layers 2 and 3. Commands like 'netstat' show Layer 4 port information; 'nslookup' operates at Layer 7.
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