In data networks, the simultaneous one-to-many transmission of the same data to all stations (or to all in a defined domain) is termed what?

Introduction:
Network transmission scopes include unicast (one-to-one), multicast (one-to-many, group-scoped), and broadcast (one-to-all on a local domain). Recognizing these terms is essential for configuring switches, routers, and wireless networks, and for understanding traffic behavior and security implications.

Given Data / Assumptions:

• The phrase “simultaneous transmission to a number of stations” indicates a one-to-many pattern.
• We focus on the conventional local network notion where all stations on a segment may receive the frame.
• Terminology should match standard data communications usage.

Concept / Approach:
Broadcast means sending a frame or signal such that all nodes in the broadcast domain receive it (e.g., Ethernet FF:FF:FF:FF:FF:FF, IPv4 255.255.255.255 or subnet broadcast). This differs from multicast (group-scoped) and from protocol names like ALOHA (a random access method). “Bandwidth” is a capacity metric, not a transmission scope. “Analog transmission” indicates signal form, not audience scope.

Step-by-Step Solution:
1) Map “one sender → many/all receivers” to broadcast.2) Exclude unrelated terms: bandwidth (capacity), ALOHA (MAC protocol), analog (signal type).3) Select “broadcast.”4) Note that on routed networks, broadcasts are confined to a local domain for scalability.

Verification / Alternative check:
Switch behavior (flooding unknown unicast and propagating broadcasts) illustrates how broadcast reaches all ports within a VLAN unless filtered.

Why Other Options Are Wrong:

• Band width: not a delivery scope.
• Aloha: contention protocol, not a transmission scope definition.
• Analog transmission: describes signaling, not audience.
• None of the above: invalid because broadcast is correct.

Common Pitfalls:
Using “broadcast” when “multicast” is intended; multicast targets subscribed members, not every station.

Final Answer:
broadcast