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OSI model versus TCP/IP – what do interviewers want?
OSI model versus TCP/IP – what do interviewers want? The OSI model splits networking into 7 layers . The TCP/IP model is the real-world version, with 4 layers . They want you to map things to layers, not argue about layer counts. IP is the network layer. TLS protects data above the transport layer.
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What this card says
What each one is
The OSI model splits networking into 7 layers.
The TCP/IP model is the real-world version, with 4 layers.
What interviewers want
They want you to map things to layers, not argue about layer counts.
Example
IP is the network layer.
TLS protects data above the transport layer.
DNS is an application-layer service.
Why it matters
Layers tell you where each control works.
Firewalls work at the network edge. Secure coding protects the application layer.
Learn more in the lesson: 46.2 Networking Interview Questions