Juniper JN0-363 Exam - Topic 10 Question 63 Discussion

Actual exam question for Juniper's JN0-363 exam

Question #: 63
Topic #: 10

[All JN0-363 Questions]

What are two bridging concepts that are used to maintain an Ethernet switching table? (Choose two.)

Alearning

Bexporting

Caging

Dtiming

Show Suggested Answer

Suggested Answer: A, C

In Ethernet switching, learning and aging are two fundamental concepts for maintaining a dynamic Ethernet switching table (also known as a MAC address table). Learning is the process by which switches listen for frames and learn the MAC addresses by associating them with the incoming port. Aging is the mechanism that ensures the switch updates its table by removing MAC addresses that have not been seen for a certain amount of time (aging time).

Juniper documentation on Ethernet switching: Understanding Ethernet Switching on Junos OS Devices

by Asuncion at Nov 25, 2025, 04:00 AM

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Paola

5 days ago

Exactly! Without aging, the table would get cluttered.

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Kandis

10 days ago

I agree, learning is essential. Aging keeps it fresh.

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Kate

15 days ago

Timing is less relevant here. Learning is key for updates.

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Erasmo

20 days ago

I’m not sure about aging. Isn’t timing also important?

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Judy

26 days ago

Yeah, learning helps build the table, and aging removes old entries.

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Norah

1 month ago

I think learning and aging are the right answers.

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Wei

1 month ago

I agree with the others, but I’m not sure about the aging part.

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Laurel

2 months ago

Wait, aging? That sounds weird for a switching table.

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Frederica

2 months ago

Definitely A) learning and C) aging. No doubt!

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Reuben

2 months ago

I thought B) exporting was a thing too?

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Colette

2 months ago

A) learning and C) aging are the right answers!

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Theodora

3 months ago

Learning and timing, baby! That's how you keep that Ethernet table running smoothly.

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Nickolas

3 months ago

B and C, for sure. Exporting the table and aging the entries are the way to go.

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Johanna

3 months ago

I practiced a similar question, and I think both "learning" and "aging" were the right choices, but I need to double-check that!

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Nathalie

3 months ago

I feel like "exporting" isn't related to switching tables at all, but I can't recall what "timing" would refer to in this context.

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Alexis

3 months ago

I'm not entirely sure, but I think "aging" has to do with how long entries stay in the table before being removed.

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Sean

3 months ago

I remember something about how switches learn MAC addresses, so maybe "learning" is one of the answers?

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Leanna

4 months ago

Ah, I remember this from class. Learning is one, and the other is aging - the process of removing stale entries from the table. I feel good about marking those two.

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Laurel

4 months ago

Ugh, I'm drawing a blank on this. Bridging concepts for an Ethernet table? I have no idea. Guess I'll just have to make an educated guess and hope for partial credit.

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Jenelle

4 months ago

I think A and D are the right choices. Timing is crucial for maintaining the table, right?

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Brianne

4 months ago

Okay, let me think this through. Learning is obviously one, and I'm pretty sure aging is the other one they're looking for. I'll mark those two and move on.

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Kayleigh

4 months ago

A and C are the correct answers. Learning and aging are used to maintain the Ethernet switching table.

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Rashad

5 months ago

Haha, aging the table? That's like me trying to maintain my youthful good looks. A and C all the way!

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Melynda

5 months ago

Hmm, not sure about this one. I know learning is involved, but I'm not totally confident on the other concept. Maybe I'll just guess and hope for the best.

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Maurine

5 months ago

This one seems straightforward. I'd go with A and C - learning and aging are definitely key concepts for maintaining an Ethernet switching table.

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Daniel

I agree, A and C make the most sense.

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Veronika

5 months ago

Yeah, learning is crucial for building the table.

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