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Nokia 4A0-D01 Exam - Topic 5 Question 1 Discussion

Which of the following statements about SR Linux interfaces is FALSE?
C) The loopback interface is a physical interface directly connected to another interface on the same chassis.
A) Only one management interface is allowed.
B) Network interfaces are associated with physical ports on the linecards.
D) Layer 2 parameters such as MTU are configured at the SR Linux interface level while Layer 3 parameters are configured at the subinterface level.

Nokia 4A0-D01 Exam - Topic 5 Question 1 Discussion

Actual exam question for Nokia's 4A0-D01 exam
Question #: 1
Topic #: 5
[All 4A0-D01 Questions]

Which of the following statements about SR Linux interfaces is FALSE?

Show Suggested Answer Hide Answer
Suggested Answer: C

The loopback interface in SR Linux is a logical, virtual interface used for management and routing purposes; it is not a physical interface directly connected to another interface on the same chassis.


by Mitsue at Jun 12, 2025, 10:12 AM

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Joni
9 months ago
Wait, is C really true? A loopback isn't physical, right?
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Olen
9 months ago
I agree, A is misleading.
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Ashlee
9 months ago
D makes sense, but I thought MTU was Layer 3 too?
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Venita
9 months ago
B sounds correct to me, physical ports are key.
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Dalene
9 months ago
A is definitely false. You can have multiple management interfaces.
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Mitsue
10 months ago
I recall that network interfaces are tied to physical ports, so that one seems true to me.
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Alpha
10 months ago
I’m a bit confused about the Layer 2 and Layer 3 parameters; I thought they were both configured at the interface level.
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Lou
10 months ago
I feel like I've seen a question about loopback interfaces before, and I think they aren't physical connections.
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Jeannetta
10 months ago
I think I remember that only one management interface is not true, but I'm not completely sure.
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Annice
11 months ago
I've got a good handle on SR Linux interfaces, so I'm confident I can nail this one. The key is to focus on the specific wording of each statement.
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Burma
11 months ago
Okay, let me think this through. The management interface, physical port associations, and layer 2/3 configuration details all seem relevant here. I'll carefully read each option and try to eliminate the false statement.
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Celestina
11 months ago
Hmm, I'm a bit confused on this one. I'll need to review the interface configuration details in the SR Linux documentation to make sure I understand the differences between the interface types.
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Francoise
11 months ago
I'm pretty sure the answer is C. The loopback interface is a virtual interface, not a physical one.
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Ashlyn
1 year ago
I'm going with B. Network interfaces are definitely associated with physical ports, that's the whole point of SR Linux, right?
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Mohammad
1 year ago
Option C sounds like something straight out of a networking comedy skit. Who would think the loopback is a physical interface?
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Florinda
1 year ago
I agree, it does sound pretty ridiculous.
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Delsie
1 year ago
I know, right? That's definitely a funny one.
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Stephaine
1 year ago
Why do you think that?
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Hyun
1 year ago
I disagree, I believe the false statement is A.
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Stephaine
1 year ago
I think the false statement is C.
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Marquetta
1 year ago
Hmm, I think D is the correct answer. Layer 2 and Layer 3 configs are definitely separated in SR Linux.
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Ailene
1 year ago
C'mon, the loopback interface is virtual, not physical! I'm pretty sure about that.
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Dorthy
1 year ago
User 2: Yeah, it's not a physical interface directly connected to another one on the same chassis.
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Alaine
1 year ago
User 1: I think you're right, the loopback interface is definitely virtual.
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