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

What is the purpose of a broadcast IP address?
A) To provide an address that refers to all the IP devices in a subnetwork.
B) To provide an address that refers to a specific group of devices in a network.
C) To provide an address that refers to a group of devices with the same IP address in different layer-2 domains.
D) To provide an address that refers to a single device on a given subnetwork.

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

Actual exam question for Nokia's 4A0-100 exam
Question #: 123
Topic #: 2
[All 4A0-100 Questions]

What is the purpose of a broadcast IP address?

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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

by Angella at Apr 05, 2026, 10:00 PM

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Vallie
26 days ago
Totally agree, A is the way to go!
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Graciela
1 month ago
A) is correct! It targets all devices in a subnetwork.
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Shawnta
2 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.
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Sena
2 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.
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Sueann
2 months ago
I’m not entirely sure, but I remember something about broadcast addresses being used for specific groups too. Maybe B?
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Tien
2 months ago
I think the broadcast IP address is meant to reach all devices in a subnetwork, so I’m leaning towards A.
upvoted 0 times
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