Which network traffic type is sent to all nodes on a network?
Short answer
B Broadcast
Question
Key Takeaways
The exam tests your ability to distinguish one-to-all broadcast from one-to-group multicast; many candidates confuse multicast with broadcast because both send to multiple receivers, but multicast only reaches subscribed devices.
Broadcast traffic is the network transmission type sent to all nodes on a network segment. Community consensus strongly confirms that unicast, multicast, and anycast do not reach every node, making broadcast the correct answer.
Common mistake: Choosing multicast is the most common mistake: multicast sends to a specific group of subscribed hosts, whereas a broadcast is forwarded to every node on the broadcast domain, regardless of group membership.
Expert Analysis
Why the Answer Is Correct
Broadcast traffic is explicitly defined as one-to-all communication. When a frame or packet is sent to the broadcast address (e.g., MAC FF:FF:FF:FF:FF:FF or IP 255.255.255.255), it is delivered to every node on the same network segment or broadcast domain. This matches the wording of the question exactly.
Community comments confirm this understanding: comment [2] states, 'Broadcast traffic is sent to all nodes on the network. When a device sends a broadcast message, it is delivered to every other device on the same network segment or broadcast domain.' Comment [1] simply and correctly names B. Broadcast.
Why the Other Options Are Wrong
Unicast is one-to-one communication, where a single packet is sent from one source to a single destination host. Anycast is one-to-nearest, delivering to the nearest of a set of receivers. Both obviously fail the 'all nodes' condition.
Multicast is the closest distractor because it reaches multiple hosts, but it only reaches a subscribed group, not all nodes. Only broadcast is destined for every node on the network segment.
Community Comment Notes
No comments in the provided list support any answer other than B; all three useful comments agree on broadcast. The lower-ranked comment [3] also references the concept of a broadcast domain, which is an important qualifier because broadcasts are not typically forwarded across routers.
The key takeaway from the comments is that 'broadcast' is short for 'broadcast domain-wide delivery,' and that is exactly what the question asks.
Official Reference
These links open the official vendor documentation in a new tab.
Exam Strategy
Memorize the four transmission types by their one-to-X mappings: unicast = one-to-one, multicast = one-to-many (group), broadcast = one-to-all, anycast = one-to-nearest. On the exam, if a question says 'sent to all nodes,' always choose broadcast without being tempted by multicast.
Community Votes
100% of anonymous learners picked answer B. Votes are pick records left by other test-takers — they are not the verified answer.
Discussion 3 contributions
Compiled from public community threads and reader submissions, lightly edited for clarity. Handles and vote tallies are shown as recorded, and comments reflect the views of individual contributors.
From public community threads 3
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jmcd2 👍 2 Answered BB. Broadcast That sends it to all nodes
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HeatSquad77 👍 1 Answered BB. Broadcast. Broadcast traffic is sent to all nodes on the network. When a device sends a broadcast message, it is delivered to every other device on the same network segment or broadcast domain.
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favouralain 👍 1 Answered Bcomputer science refers to the type of network traffic that is sent to all nodes within a broadcast domain.
Reader comments & corrections
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