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Free Nokia Bell Labs Distributed Cloud Networks BL0-220 Exam Questions

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Question 1

In public networks, what are the parts of a distributed cloud used for the 5G Core control plane. (Select 2)

Correct Answer: A. Metro Edge Cloud; B. Core/Central Cloud
Explanation:

The 5G Core control plane is responsible for managing the network functions, services, and resources, such as authentication, authorization, session management, policy control, mobility management, etc.1.The 5G Core control plane can be deployed in a distributed cloud architecture, which consists of different cloud layers that have different characteristics and roles2.The Metro Edge Cloud is a cloud layer that is located near the access network, and provides low latency, high bandwidth, and local processing for the control plane functions3.The Core/Central Cloud is a cloud layer that is located in the core network, and provides high availability, scalability, and security for the control plane functions4.The distributed cloud architecture enables the 5G Core control plane to optimize the network performance, efficiency, and flexibility, and to support various use cases and applications.Reference:1:Nokia Bell Labs Distributed Cloud Networks, Unit 1: Cloud Ecosystem, Section 1.2: Cloud Architecture2:Nokia Bell Labs Distributed Cloud Networks, Unit 1: Cloud Ecosystem, Section 1.3: Distributed Cloud3:Nokia Bell Labs Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Section 3.2: Cloud Resource Planning for Distributed Cloud4:Nokia Bell Labs Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Section 3.3: Cloud Resource Planning for Central Cloud :Nokia Bell Labs Distributed Cloud Networks, Unit 5: New Services Automation, Section 5.1: Distributed Cloud Services Automation


Question 2

What is the most critical benefit a cloud native deployment provides when deploying applications in complex and very low predictive environments?

Correct Answer: B. Adaptability
Explanation:

Adaptability is the most critical benefit a cloud native deployment provides when deploying applications in complex and very low predictive environments.Cloud native applications are designed to be modular, scalable, resilient, and portable across different cloud platforms1.They can leverage the cloud features such as automation, orchestration, and service discovery to dynamically adjust to changing conditions and demands2.This enables them to cope with the complexity and unpredictability of the environments they operate in, such as edge computing, industrial automation, and smart cities3. Capability and reliability are also important benefits of cloud native deployment, but they are not the most critical ones.Capability refers to the ability to deliver high-performance and feature-rich applications that meet the user and business needs1.Reliability refers to the ability to ensure the availability and consistency of the applications despite failures or errors1.However, these benefits are not sufficient if the applications cannot adapt to the evolving and diverse scenarios they face in the real world.Reference:1: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Section 2.3: Cloud Native applications design2: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Section 2.5: Microservices and Containerization3: Google Cloud, Nokia partner to accelerate cloud-native 5G3


Question 3

Hyperscale computing relies on scalable server architecture.

Correct Answer: A. True
Explanation:

Hyperscale computing relies on scalable server architecture.This is true because hyperscale computing is a type of cloud computing that aims to provide massive scalability, performance, and efficiency for large-scale applications and data processing1.Hyperscale computing requires a scalable server architecture that can support thousands or millions of servers that are interconnected by high-speed networks2.Scalable server architecture enables hyperscale computing to handle increasing workloads, optimize resource utilization, and reduce operational costs3.Reference:1: Nokia Bell Labs Distributed Cloud Networks, Unit 4: Operating Your Cloud, Section 4.1: Industry Trends in Data Center Hardware2: How Nokia Bell Labs' new serverless computing design will take cloud computing to the next level43: Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks1


Question 4

Which of the following are benefits of life cycle management?

Correct Answer: C. All life cycle stages are clearly identified.
Explanation:

All life cycle stages are clearly identified. Comprehensive Explanation and Reference of Correct Answer: Life cycle management is the process of managing the


Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Unit 4: Operating Your Cloud, slide 3

Module by Module - Self Study Note Guide, DC4.1-- Industry Trends in Data Center Hardware, page 16

Question 5

What is the approximate maximum distance of an Edge Cloud from the end-user?

Correct Answer: B. 300KM
Explanation:

The approximate maximum distance of an Edge Cloud from the end-user is 300KM.Edge Cloud is a type of cloud deployment that brings cloud resources closer to the end-user, reducing latency and improving performance1.Edge Cloud can be located at various distances from the end-user, depending on the use case and the network topology2.However, the general range of distance for Edge Cloud is between 10KM and 300KM3. 10000KM, 5000KM, and 10Q0KM are too far to be considered as Edge Cloud, as they would introduce significant delays and inefficiencies in the network.


Question 6

Which of the following are characteristics of Cloud Native services. (Select 2)

Correct Answer: B. Very light weight application; D. Very fast deployment
Explanation:

The characteristics of Cloud Native services are very light weight application and very fast deployment. Cloud Native services are applications that are built using cloud-native design principles, such as microservices, containers, and orchestration. Cloud Native services are very light weight because they are composed of small, independent, and loosely coupled components that can run on any platform and environment. Cloud Native services are very fast to deploy because they can leverage the automation, scalability, and elasticity of the cloud infrastructure, and can be updated or rolled back without affecting the whole application.Reference:Cloud and Network Services: Leading cloud-native and as-a-service delivery models,Nokia Mobile Networks and Bell Labs 5G Cloud Native RAN Professional Certification


Question 7

What is the main advantage of development concepts such DevOps and CI/CD used in cloud native applications?

Correct Answer: C. To reduce time and complexity for development and deployment.
Explanation:

To reduce time and complexity for development and deployment. Comprehensive Explanation and Reference of Correct Answer: The main advantage of development


Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Unit 4: Operating Your Cloud, slide 3

Catching the 5G train with CI/CD Services, paragraph 1

Nokia unveils new 5G core deployment services to give operators better capabilities, paragraph 1

Question 8

Which of the following contains the configuration of a VNF or CNF?

Correct Answer: B. YAML XML template file
Explanation:

A YAML XML template file contains the configuration of a VNF or CNF. A VNF stands for Virtual Network Function, which is a software-based network function that runs on a virtual machine or a container. A CNF stands for Cloud-native Network Function, which is a network function that is designed and implemented using cloud-native principles and technologies, such as microservices, containers, and Kubernetes. A YAML XML template file is a file that defines the structure, parameters, and dependencies of a VNF or CNF, as well as the resources and policies required to deploy and manage it. A YAML XML template file is based on the TOSCA (Topology and Orchestration Specification for Cloud Applications) standard, which is a language for describing the components and relationships of complex cloud applications. A YAML XML template file is used by the MANO (Management and Orchestration) system to instantiate, configure, and operate a VNF or CNF on the cloud infrastructure.Reference:Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Section 2.4: Cloud Software and Hardware Resources.


Question 9

Select the most appropriate word to complete the following sentence:

The public cloud ecosystem is a great value for users that offers many more options and_____than the simple consumption of

resources.

Correct Answer: D. benefits
Explanation:

The most appropriate word to complete the sentence isbenefits.The public cloud ecosystem offers many benefits to users, such as scalability, flexibility, cost-efficiency, and innovation12.Constraints, problems, and operability are not suitable words to describe the advantages of the public cloud ecosystem over the simple consumption of resources.Reference:1:Nokia Bell Labs Distributed Cloud Networks, Unit 1: Cloud Ecosystem, slide 72:Nokia Bell Labs 5G Certification Program - Blended Learning, Section 2: Distributed Cloud Networks, slide 9


Question 10

Which of the following is the most efficient service concept for resource usage?

Correct Answer: C. Stateless
Explanation:

The ''Stateless'' service concept is indeed the most efficient for resource usage. In a stateless architecture, each request is treated as an independent transaction, unconnected to any previous request. This means that no state information is stored between transactions, which simplifies the design and scalability of systems. It allows for better resource utilization because there is no need to maintain state information over time, which can be resource-intensive. This approach aligns with the principles of RESTful services and is widely adopted in scalable web applications.


Page: 1 / 6 Total 60 questions