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Huawei H12-891_V1.0 Exam - Topic 4 Question 56 Discussion

As shown in the figure, the PPP link between R1 and R2 is not in the same network segment, but the R1 and R2 direct connectors can communicate, and the Ethernet link cannot communicate under the same planning, why?
B) The interconnect POS ports of R1 and R2 learn the 32-bit host route for each other's direct connections through IPCP and D) The data packets of the interconnect POS ports of R1 and R2 do not need to encapsulate ethernet headers and do not need to use ARP to request MAC addresses
A) The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP
C) The interconnect POS port of RI and R2, through LCP learns the MAC address of the opposite termination , does not need to use ARP to request the MAC address

Huawei H12-891_V1.0 Exam - Topic 4 Question 56 Discussion

Actual exam question for Huawei's H12-891_V1.0 exam
Question #: 56
Topic #: 4
[All H12-891_V1.0 Questions]

As shown in the figure, the PPP link between R1 and R2 is not in the same network segment, but the R1 and R2 direct connectors can communicate, and the Ethernet link cannot communicate under the same planning, why?

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Suggested Answer: B, D

by Nicolette at Sep 17, 2024, 02:43 PM

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Hortencia
7 months ago
Not sure I get why Ethernet can't work here.
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Merissa
7 months ago
IPCP helps in learning routes, right?
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Dylan
7 months ago
Wait, so the Ethernet link can't communicate? That's surprising!
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Blossom
7 months ago
Totally agree, that's how PPP works!
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Francine
7 months ago
R1 and R2 can communicate directly without Ethernet headers.
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Gretchen
8 months ago
I’m leaning towards option A since IPCP is involved, but I’m confused about the subnet versus host routes. I need to double-check that concept.
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Arletta
8 months ago
I feel like option D makes sense because if the POS ports don’t need Ethernet headers, that could explain the communication issue. But I’m not completely confident.
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Audria
8 months ago
This question seems similar to one we practiced about routing protocols and how they interact with different link types. I think it might have to do with how MAC addresses are handled.
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Almeta
8 months ago
I remember something about how PPP can work over different network segments, but I'm not entirely sure why the Ethernet link fails.
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Dean
8 months ago
Okay, I think I've got it. The PPP link uses IPCP to learn the routing information, while the Ethernet link needs to use ARP. That's why they can't communicate under the same planning.
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Gregg
8 months ago
The key seems to be understanding how the PPP link and direct connectors can communicate, while the Ethernet link cannot. I'll focus on that difference.
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Hailey
8 months ago
I'm a bit confused by the different network segments and how the PPP link and Ethernet link are connected. I'll need to re-read the question carefully.
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Sylvia
8 months ago
This question seems tricky, but I think I can figure it out if I break it down step-by-step.
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Leontine
9 months ago
I recall a practice question where it said something about exporting configurations, but now I'm confused if it can only be partial or complete.
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Kattie
2 years ago
Option D makes the most sense to me. No need for Ethernet when the routers can talk directly over the PPP link. Gotta love those networking shortcuts!
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Marilynn
2 years ago
D is the way to go. PPP links can communicate directly without the overhead of Ethernet headers and ARP. Saves a lot of time and resources.
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Lucy
2 years ago
Haha, the question is so confusing, I feel like I need a Ph.D. in networking to understand it. But I'll go with D, it sounds the most logical.
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Denny
2 years ago
Mindy: Let's go with option D then.
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Vanesa
2 years ago
User 3: I think so too, option D seems logical.
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Jose
2 years ago
User 3: I think D is the correct answer too.
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Mindy
2 years ago
User 2: Yeah, I think option D makes the most sense.
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Maryann
2 years ago
User 2: Yeah, D seems like the right choice.
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Christiane
2 years ago
User 1: I agree, D does sound logical.
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Stephaine
2 years ago
I agree, this question is really confusing.
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Arleen
2 years ago
I think the answer is C. The LCP protocol allows the interconnect ports to learn the MAC addresses of the other end, so no ARP is needed.
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Osvaldo
2 years ago
D) The data packets of the interconnect POS ports of R1 and R2 do not need to encapsulate ethernet headers and do not need to use ARP to request MAC addresses
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Jutta
2 years ago
C) The interconnect POS port of RI and R2, through LCP learns the MAC address of the opposite termination , does not need to use ARP to request the MAC address
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Frank
2 years ago
B) The interconnect POS ports of R1 and R2 learn the 32-bit host route for each other's direct connections through IPCP
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Lauran
2 years ago
A) The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP
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Claudia
2 years ago
The correct answer is D. The PPP links between R1 and R2 do not need to use Ethernet headers or ARP since they communicate directly at the network layer.
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Mitzie
2 years ago
C) The interconnect POS port of RI and R2, through LCP learns the MAC address of the opposite termination , does not need to use ARP to request the MAC address
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Alease
2 years ago
B) The interconnect POS ports of R1 and R2 learn the 32-bit host route for each other's direct connections through IPCP
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Agustin
2 years ago
A) The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP
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Martin
2 years ago
Interesting point, Reuben. But I still think option A makes more sense in this scenario.
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Reuben
2 years ago
I disagree, I believe the correct answer is D) The data packets of the interconnect POS ports of R1 and R2 do not need to encapsulate ethernet headers and do not need to use ARP to request MAC addresses.
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Martin
2 years ago
I think the answer is A) The interconnect POS ports of R1 and R2 learn the 24-bit subnet route of each other's direct connection ports through IPCP.
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