What does ls(packet) do in Scapy?

• A. List all the functions supported by Scapy
• B. Show only the raw hex bytes
• C. Send the packet to the network
• D. Display the packet as a human-readable string

Answer: (A)

The main idea here is understanding how Scapy lets you inspect a packet’s structure. The ls function is used to list the fields and their details for a protocol layer or a packet object. When you pass a packet (or a specific layer) to ls, you see the names of the fields, their types, and often default values for each layer in the stack. This is basically showing you the packet’s schema or layout, layer by layer, so you know what parameters exist and how they’re organized.

This is different from other actions you might perform with a packet. It isn’t about sending anything to the network, nor about converting the packet to raw hex by itself, nor about printing a readable string representation. Those tasks are handled by other commands, such as show for a readable display, hexdump or bytes for hex bytes, and sr/send for network transmission.

So ls(packet) is best thought of as a quick way to reveal the structure and available fields of the packet’s layers, helping you understand how the packet is composed and what you can modify or inspect.