Nokia BL0-220 Exam - Topic 2 Question 35 Discussion

Actual exam question for Nokia's BL0-220 exam

Question #: 35
Topic #: 2

[All BL0-220 Questions]

Which one of the following requires a Network Service Descriptor defined in a catalog?

ACloud infrastructure software

BCloud orchestration

CSoftware defined network

DCloud software platform

Show Suggested Answer

Suggested Answer: B

A Network Service Descriptor (NSD) is a template that defines the characteristics and requirements of a network service, such as the number and type of virtual network functions (VNFs), the connectivity and topology between them, the scaling policies, and the service level agreements1.A NSD is defined in a catalog that is managed by the cloud orchestration layer, which is responsible for deploying, monitoring, and controlling the network services across the distributed cloud2.Therefore, cloud orchestration requires a NSD defined in a catalog, while the other options do not.Reference:1:Nokia Bell Labs Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Topic: Network Service Descriptor Role2:Nokia Bell Labs Distributed Cloud Networks, Unit 4: Operating Your Cloud, Topic: Cloud Orchestration

A Network Service Descriptor (NSD) is an integral part of network function virtualization (NFV) architecture. It describes the composition of network services, including how different network functions are chained or combined to provide a specific service. Cloud orchestration involves the automated management of various cloud computing services and resources, including networking services. It requires a comprehensive description of these services (i.e., NSD) to automate their deployment, scaling, and management effectively. NSD in a catalog would be used to define the parameters and configurations needed for the orchestrated service to be deployed in a cloud environment, making cloud orchestration the most likely context for requiring an NSD.

by Tony at Apr 29, 2025, 05:52 AM

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Helene

2 months ago

Wait, are we sure about B? Sounds too simple.

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Fannie

2 months ago

I think it's C, software defined networks are key here.

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Henriette

3 months ago

A is important too, but I agree with B.

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Dalene

3 months ago

I thought D was the answer, but I see the point for B.

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Carli

3 months ago

Definitely B, cloud orchestration needs that descriptor.

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Wai

3 months ago

I thought cloud orchestration definitely required a descriptor, but I might be confusing it with cloud software platforms.

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Brynn

4 months ago

I feel like cloud infrastructure software might not need a descriptor, but I could be mixing it up with something else we studied.

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Aimee

4 months ago

I remember practicing a question about software defined networks needing descriptors, but I can't recall the specifics.

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Lawanda

4 months ago

I think a Network Service Descriptor is more related to cloud orchestration, but I'm not entirely sure.

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Myong

4 months ago

I'm feeling confident about this one. The Network Service Descriptor is used to define the network services required for a cloud application, so it's definitely related to cloud orchestration. I'll mark B as my answer.

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Maddie

4 months ago

Okay, I think I've got it. Cloud orchestration is the process of automating the deployment and management of cloud resources, and a Network Service Descriptor is a key part of that. So B is the correct answer.

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Justine

5 months ago

Hmm, I'm a bit confused on this one. I know Network Service Descriptors are used in cloud environments, but I'm not sure which of these options requires one. I'll have to think this through carefully.

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Xenia

5 months ago

I'm pretty sure this has to do with cloud orchestration, since that's the only option that specifically mentions a Network Service Descriptor.

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