Question Type: Computer Networking

Step-by-Step Solution:

• The TCP/IP model is a layered architecture used for network communication. It has four layers: Application, Transport, Internet, and Network Access.
• The Internet layer (also known as the network layer) is responsible for logical addressing and routing of data packets across networks. This layer uses IP addresses to direct data packets to their destination.
• At this layer, data is organized into packets. A packet contains the data, the source and destination IP addresses, and other control information needed for routing.
• The other options are incorrect because:
  • Segments: These are units of data at the transport layer (TCP/UDP).
  • Frames: These are units of data at the data link layer (Ethernet, Wi-Fi).
  • Bytes: These are the fundamental units of data, but not the organizational unit at the internet layer.

Core Logic/Pattern: The core concept is understanding the function of the Internet layer in the TCP/IP model and how data is structured at each layer.

Correct Answer: packets