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200-150 · Question #137

Refer to the exhibit. Regarding the OSI networking model and the updated TCP/IP networking model, which statement about this scenario is true?

The correct answer is C. Model A is OSI, Model B is TCP/IP, Layer C is Transport, Layer D is Data Link, and Layer E is. The OSI model (Model A, 7 layers) and the updated TCP/IP model (Model B, 5 layers) share common layers including Transport and Data Link, which are correctly identified in answer C.

Cisco Data Center Networking Technologies

Question

Refer to the exhibit. Regarding the OSI networking model and the updated TCP/IP networking model, which statement about this scenario is true?

Exhibit

200-150 question #137 exhibit

Options

  • AModel A is TCP/IP, Model B is OSI, Layer C is Transport, Layer D is Internet, and Layer E is
  • BModel A is OSI, Model B is TCP/IP, Layer C is Session, Layer D is Network, and Layer E is
  • CModel A is OSI, Model B is TCP/IP, Layer C is Transport, Layer D is Data Link, and Layer E is
  • DModel A is TCP/IP, Model B is OSI, Layer C is Transport, Layer D is Internet, and Layer E is

How the community answered

(26 responses)
  • A
    4% (1)
  • B
    15% (4)
  • C
    73% (19)
  • D
    8% (2)

Why each option

The OSI model (Model A, 7 layers) and the updated TCP/IP model (Model B, 5 layers) share common layers including Transport and Data Link, which are correctly identified in answer C.

AModel A is TCP/IP, Model B is OSI, Layer C is Transport, Layer D is Internet, and Layer E is

Assigning TCP/IP as Model A is incorrect because the TCP/IP model has fewer layers (4 or 5) than the 7-layer OSI model - TCP/IP cannot be the model with more granular layers.

BModel A is OSI, Model B is TCP/IP, Layer C is Session, Layer D is Network, and Layer E is

While the model assignments are correct, labeling Layer C as Session is wrong because the Session layer exists only in OSI above Transport - both models share a Transport layer at the equivalent position where Layer C appears.

CModel A is OSI, Model B is TCP/IP, Layer C is Transport, Layer D is Data Link, and Layer E isCorrect

Model A is correctly identified as OSI because it contains the full 7-layer stack including Session and Presentation layers absent in TCP/IP. Model B is the updated TCP/IP model with 5 layers. Layer C - Transport - and Layer D - Data Link - appear by those names in both the OSI model and the updated 5-layer TCP/IP model, making this the accurate mapping.

DModel A is TCP/IP, Model B is OSI, Layer C is Transport, Layer D is Internet, and Layer E is

This answer incorrectly assigns TCP/IP as Model A, and labeling Layer D as Internet is only valid for the TCP/IP model - in the OSI model (the 7-layer model) the equivalent layer is called Network, not Internet.

Concept tested: OSI vs updated TCP/IP model layer mapping

Source: https://www.cisco.com/en/US/docs/internetworking/technology/handbook/OSI-Layers.html

Topics

#OSI model#TCP/IP model#networking layers#model comparison

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