Deal of The Day! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

Nokia 4A0-100 Exam - Topic 6 Question 112 Discussion

What happens immediately after an Ethernet switch receives an Ethernet frame?
B) It records the source MAC address and the interface on which it arrived.
A) It records the destination MAC address and the interface on which it arrived.
C) It floods the frame out of all its interfaces except the interface on which the frame arrived.
D) It transmits the frame out of the appropriate interface.

Nokia 4A0-100 Exam - Topic 6 Question 112 Discussion

Actual exam question for Nokia's 4A0-100 exam
Question #: 112
Topic #: 6
[All 4A0-100 Questions]

What happens immediately after an Ethernet switch receives an Ethernet frame?

Show Suggested Answer Hide Answer
Suggested Answer: B

by Ben at Jun 13, 2025, 04:30 PM

Limited Time Offer

25%

Off

Get Premium 4A0-100 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

0/2000 characters
Submit Cancel
Casey
9 months ago
I thought it just sent it out directly, not sure about this flooding thing.
upvoted 0 times
...
Paris
9 months ago
Totally agree, that's how it learns!
upvoted 0 times
...
Isreal
9 months ago
It definitely logs the source MAC too, that's key for the switch!
upvoted 0 times
...
Isaiah
9 months ago
Wait, does it really flood the frame if it doesn't know the destination?
upvoted 0 times
...
Eleonora
9 months ago
It records the destination MAC address and the interface it came from.
upvoted 0 times
...
Kiley
10 months ago
I’m leaning towards option A, but I also remember something about transmitting the frame out of the right interface. It’s confusing!
upvoted 0 times
...
Loren
10 months ago
I feel like the switch does something with the MAC addresses, but I can't recall if it floods the frame or just records the info first.
upvoted 0 times
...
Jennie
10 months ago
I remember a practice question where it asked about what happens after receiving a frame, and I think it was about flooding the frame if the destination MAC isn't known.
upvoted 0 times
...
Delpha
10 months ago
I think the switch first records the source MAC address, but I'm not entirely sure if it also logs the destination at that point.
upvoted 0 times
...
Elvera
11 months ago
I've got this one! The answer is D. The switch transmits the frame out the appropriate interface based on its forwarding table.
upvoted 0 times
...
Jeannine
11 months ago
Okay, let me think this through. I believe the correct answer is C - the switch floods the frame out of all its interfaces except the one it came in on. That way it can learn where devices are located on the network.
upvoted 0 times
...
Jaime
11 months ago
Hmm, I'm a bit unsure about this one. I think it might be A, where the switch records the destination MAC address and interface. But I'm not 100% confident.
upvoted 0 times
...
Silvana
11 months ago
I'm pretty sure the answer is B. The switch needs to record the source MAC address and the interface it came in on to build its forwarding table.
upvoted 0 times
...
Carissa
1 year ago
I believe the switch then transmits the frame out of the appropriate interface.
upvoted 0 times
...
Marion
1 year ago
I agree with Goldie. It helps the switch determine where to forward the frame.
upvoted 0 times
...
Gregoria
1 year ago
D? Really? The switch doesn't transmit the frame, it just forwards it out the appropriate interface. These options are a bit off.
upvoted 0 times
...
Antonio
1 year ago
C is the correct answer. Ethernet switches flood frames out of all interfaces except the one they came in on until they learn the destination MAC address.
upvoted 0 times
Patti
1 year ago
C is the correct answer.
upvoted 0 times
...
Lauran
1 year ago
It does this until it learns the destination MAC address.
upvoted 0 times
...
Douglass
1 year ago
The switch floods frames out of all interfaces except the one they came in on.
upvoted 0 times
...
...
Goldie
1 year ago
I think the switch records the destination MAC address and the interface on which it arrived.
upvoted 0 times
...
Valentin
1 year ago
Wait, isn't the switch supposed to be a 'smart' device? Flooding everything except the input port seems kind of dumb to me.
upvoted 0 times
Reita
1 year ago
Once the switch learns the MAC address, it will then forward future frames directly to that port.
upvoted 0 times
...
Cassie
1 year ago
This helps ensure the frame reaches its intended destination, even if the switch doesn't have the destination MAC address in its table.
upvoted 0 times
...
Kiley
1 year ago
It's actually a common practice for switches to flood frames to all ports except the one it was received on.
upvoted 0 times
...
...
Lashawn
1 year ago
I think the answer is B. Ethernet switches need to learn the source MAC addresses and the interfaces they come in on to build their forwarding tables.
upvoted 0 times
Jamika
1 year ago
After that, the switch will update its forwarding table with the source MAC address and port information.
upvoted 0 times
...
Tegan
1 year ago
Yes, you are correct. The switch will examine the source MAC address and the port it came from.
upvoted 0 times
...
...

Save Cancel