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Juniper Exam JN0-105 Topic 2 Question 31 Discussion

Actual exam question for Juniper's JN0-105 exam
Question #: 31
Topic #: 2
[All JN0-105 Questions]

Which two statements are correct about MAC addresses? (Choose two.)

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Suggested Answer: C, D

MAC (Media Access Control) addresses are unique identifiers assigned to network interfaces for communications at the data link layer of a network segment. MAC addresses are used to identify the physical hardware on a network. In the context of Ethernet switches, the destination MAC address in incoming frames is used to determine the appropriate output port for forwarding the frame towards its final destination. The switch does not change the destination MAC address; it uses the MAC address to make forwarding decisions within the local network segment.


Contribute your Thoughts:

Tanesha
14 days ago
Switches are like the traffic cops of the network, directing those MAC address frames to their proper destinations!
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Jesusita
17 days ago
Hmm, I'm not sure about D. Doesn't the switch just look at the destination MAC and forward accordingly?
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Beatriz
20 days ago
I think A and D are the right answers. Switches use the MAC address table to forward frames to the correct destination.
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Brandon
21 days ago
B is wrong. The source and destination MAC addresses can change at each hop in the network.
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Eden
7 days ago
C) The MAC address identifies the physical hardware.
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Merissa
9 days ago
A) Switches use the Address Resolution Protocol table to assign MAC addresses to network interface cards in the forwarding frame.
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Marshall
18 days ago
A) Switches use the Address Resolution Protocol table to assign MAC addresses to network interface cards in the forwarding frame.
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Arlyne
1 months ago
I'm not sure about statement B, though. The source and destination MAC addresses can change as the frame is forwarded, right?
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Beata
1 months ago
I agree with you, Mike. I also believe that statement D is correct because switches use the destination MAC address to identify the next-hop destination.
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Abel
1 months ago
C is definitely correct. MAC addresses are physical layer identifiers that represent the network interface card.
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Oretha
4 days ago
D) Switches use the destination MAC address to identify the next-hop destination and to change the destination MAC address in the frame.
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Carin
9 days ago
A) Switches use the Address Resolution Protocol table to assign MAC addresses to network interface cards in the forwarding frame.
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Hildegarde
13 days ago
C) The MAC address identifies the physical hardware.
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Luisa
22 days ago
User B
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Justine
24 days ago
User A
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Mike
1 months ago
I think statement C is correct because MAC addresses do identify the physical hardware.
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