What are packets primarily made of in transmission?

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Multiple Choice

What are packets primarily made of in transmission?

Explanation:
Data is carried over networks as a sequence of bits. A packet is a structured block that contains those bits arranged into fields like headers and payload, and it is this bit pattern that is transmitted. At the physical layer, those bits are mapped to signals—electrical voltages on copper, light in fiber, or radio waves for wireless. Encryption may protect the payload, but that doesn’t change the fact that the packet itself is built from bits. It isn’t a whole file, and the physical signaling isn’t the packet itself—it's how the bit pattern is conveyed. So the packets are made of streams of bits.

Data is carried over networks as a sequence of bits. A packet is a structured block that contains those bits arranged into fields like headers and payload, and it is this bit pattern that is transmitted. At the physical layer, those bits are mapped to signals—electrical voltages on copper, light in fiber, or radio waves for wireless. Encryption may protect the payload, but that doesn’t change the fact that the packet itself is built from bits. It isn’t a whole file, and the physical signaling isn’t the packet itself—it's how the bit pattern is conveyed. So the packets are made of streams of bits.

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