Discuss Nokia 4A0-100 Exam Topic 4 Question 117

Refer to the exhibit.

An Ethernet Local Area Network (LAN) consists of the components shown in the diagram. Assuming there are no VLANs, how many broadcast domains are on this LAN?

Suggested Answer: A

A broadcast domain is a logical division of a network in which all nodes can reach each other with broadcast frames (Layer 2). Devices within the same broadcast domain receive broadcast packets sent by others.

In the diagram:

Multiple users connect to hubs.

Hubs are Layer 1 devices and do not break broadcast domains. They simply replicate incoming electrical signals to all ports.

Hubs are then connected to switches.

Switches, unless VLANs are configured, forward broadcasts to all ports except the incoming one, effectively keeping all devices in the same broadcast domain.

The two switches are connected together without VLAN segmentation.

Therefore:

The entire LAN depicted is a single Layer 2 broadcast domain.

There are no routers or VLANs to break or separate the domain.

Correct answer: A. 1

Nokia IP Networking Fundamentals Study Guide -- Chapter: 'LAN Switching and Broadcast Domains'

Cisco and CompTIA Network+ materials on 'Hubs vs Switches vs Routers in Broadcast Domains'

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30 comments · newest first

Lili 6 months ago

But what if there are multiple switches? Could be C) 5.

Roosevelt 7 months ago

I agree with Dalene. A) 1 makes sense.

Dalene 7 months ago

I feel like it’s definitely A) 1. No VLANs means one broadcast domain.

Giuseppe 7 months ago

I’m leaning towards B) 2. Could be a router involved.

Jaime 7 months ago

I think it's A) 1. All devices are in the same network.

Laticia 7 months ago

I thought there might be more, but yeah, it’s 1.

Dan 8 months ago

Simple setup, just one broadcast domain.

Felix 8 months ago

Haha, this question is a real brain-teaser. I'm going to go with my gut and say C) 5 broadcast domains.

Gilma 8 months ago

Hmm, I'm not sure. This question is a bit tricky. I'll have to think about it more.

Lajuana 8 months ago

D) 6 broadcast domains seems right to me. There are 6 distinct segments on the LAN.

Lelia 9 months ago

The diagram shows 5 switches, so the answer must be C) 5 broadcast domains.

Katlyn 9 months ago

I think the answer is B) 2 broadcast domains.

Ernest 9 months ago

I’m pretty confident it’s just one broadcast domain, but I wish I had reviewed that section more thoroughly.

Marylou 9 months ago

I’m not entirely sure, but I feel like there might be more than one if there are multiple switches involved.

Johnson 9 months ago

I remember a practice question where we had to count broadcast domains, and it was similar. I’m leaning towards option A.

Dorthy 9 months ago

I've got a strategy in mind. I'll start by identifying the different network devices and how they're connected, then determine the number of distinct broadcast domains.

Jesus 10 months ago

I'm a bit confused by the terminology here. Can someone explain what a broadcast domain is and how that relates to this network setup?

Noble 10 months ago

I think I've got this! The key is to identify the separate network segments and count the number of broadcast domains.

Nina 10 months ago

Wait, are we sure about that? What if there are hidden VLANs?

Sunny 10 months ago

I think there’s only one broadcast domain since there are no VLANs, right?

Launa 10 months ago

Totally agree, it’s definitely A!

Ryan 11 months ago

I still say A) 1. Simple LAN setup, one broadcast domain.

Joanna 11 months ago

There’s only 1 broadcast domain in a flat LAN like this.

Wilson 11 months ago

Okay, this looks tricky. I'm not entirely sure how to approach it, but I'll try to break it down step-by-step.

Vinnie 11 months ago

Hmm, let me think about this. I'll need to carefully analyze the diagram and consider how the different components affect the broadcast domains.

Alpha 6 months ago

↳ replying to Vinnie

So, we’re all leaning towards option A then?

Heike 6 months ago

↳ replying to Vinnie

True, but without VLANs, it stays as one.

Earleen 6 months ago

↳ replying to Vinnie

But what about the switches? They can create separate domains.

Toi 6 months ago

↳ replying to Vinnie

Yeah, I agree. It looks like a single LAN setup.

Callie 6 months ago

↳ replying to Vinnie

I think there’s only one broadcast domain.

Nokia 4A0-100 Exam - Topic 4 Question 117 Discussion