TCP/IP and OSI Models SCE Practice Questions (Page 7)

Questions 31–34

1. 31application · easy

   A network engineer is explaining encapsulation to a new hire. The engineer says, 'When a host sends data, each layer adds its own header.' Which statement correctly describes the encapsulation process in the TCP/IP model?

   • AThe link layer adds a TCP header, the transport layer adds an IP header, and the network layer adds a frame header.
   • BThe network layer adds a TCP header, the transport layer adds an IP header, and the link layer adds a frame header.
   • CThe transport layer adds a TCP header, the network layer adds an IP header, and the link layer adds a frame header and trailer.
   • DThe application layer adds a TCP header, the transport layer adds an IP header, and the network layer adds a frame header.
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2. 32application · medium

   A network architect is designing a training session for new SOC analysts and wants to show the relationship between the TCP/IP and OSI models. The architect needs a diagram that maps the TCP/IP link layer to the corresponding OSI layers. Which OSI layers should be mapped to the TCP/IP link layer?

   • ALayer 3 (Network) and Layer 4 (Transport)
   • BLayer 1 (Physical) and Layer 2 (Data Link)
   • CLayer 4 (Transport) and Layer 5 (Session)
   • DLayer 2 (Data Link) and Layer 3 (Network)
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4. 33application · easy

   A network administrator is documenting the company's network architecture. The administrator wants to describe the function of a device that forwards packets based on IP addresses and also performs routing. Which OSI layer corresponds to the TCP/IP network layer?

   • ALayer 1 (Physical)
   • BLayer 4 (Transport)
   • CLayer 2 (Data Link)
   • DLayer 3 (Network)
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5. 34expert · hard

   A SOC manager is deciding which network model to use for a new training program. The manager wants a model that is both easy to teach and directly applicable to troubleshooting real-world network issues. The manager also wants to emphasize the separation of concerns between different networking functions. Which approach best balances these requirements?

   • ATeach the OSI model as the primary reference and map TCP/IP protocols to it during troubleshooting.
   • BTeach only the TCP/IP model because it is the only model used in real-world networking.
   • CTeach both models separately without any mapping, as they are unrelated.
   • DTeach only the OSI model because it is the official standard and more detailed.
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