Check Point Certified Security Administrator (CCSA) R81.20 — Question 113

How many layers make up the TCP/IP model?

Answer options

• A. 6
• B. 4
• C. 7
• D. 2

Correct answer: B

Explanation

The TCP/IP model consists of 4 layers: the Application layer, Transport layer, Internet layer, and Network Interface layer. The other options incorrectly reference the number of layers in either the OSI model or provide incorrect counts for the TCP/IP model.