Discuss Nokia 4A0-100 Exam Topic 2 Question 123

What is the purpose of a broadcast IP address?

ATo provide an address that refers to all the IP devices in a subnetwork.

BTo provide an address that refers to a specific group of devices in a network.

CTo provide an address that refers to a group of devices with the same IP address in different layer-2 domains.

DTo provide an address that refers to a single device on a given subnetwork.

Suggested Answer: A

A broadcast IP address is used to send a message to all devices on a specific IP subnet. This address is the highest address in the subnet (i.e., all host bits set to 1).

Example: In 192.168.1.0/24 broadcast is 192.168.1.255.

It is used for purposes like ARP requests or DHCP discovery.

Option A is correct -- refers to all hosts in a subnet.

Option B refers to multicast, not broadcast.

Option C might refer to anycast, which is different.

Option D describes a unicast address.

Nokia IP Fundamentals Study Guide -- Chapter: 'IP Addressing and Broadcast Communication'

RFC 919 -- Broadcasting Internet Datagrams

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12 comments · newest first

Dion 3 months ago

I’m leaning towards B. It’s about specific groups, right?

Tresa 3 months ago

Agreed! A makes sense. Broadcasts reach everyone.

Paris 3 months ago

I think A is the right answer. It covers all devices in a subnetwork.

Dudley 4 months ago

C sounds confusing, not sure about that one.

Krystina 4 months ago

I thought broadcast IPs were just for one device, guess I was wrong!

Halina 4 months ago

Wait, isn't B also kinda right for specific groups?

Vallie 5 months ago

Totally agree, A is the way to go!

Graciela 6 months ago

A) is correct! It targets all devices in a subnetwork.

Shawnta 6 months ago

I’m confused about the difference between A and B. Aren’t they kind of similar? I might need to review that part again.

Sena 6 months ago

I practiced a question similar to this, and I think it was about addressing all devices in a subnet, which makes me think A is correct.

Sueann 7 months ago

I’m not entirely sure, but I remember something about broadcast addresses being used for specific groups too. Maybe B?

Tien 7 months ago

I think the broadcast IP address is meant to reach all devices in a subnetwork, so I’m leaning towards A.

Nokia 4A0-100 Exam - Topic 2 Question 123 Discussion