2024 New BL0-220 Exam Questions Real Nokia Dumps
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Nokia BL0-220 exam is designed for professionals who want to validate their skills and knowledge in Nokia Bell Labs Distributed Cloud Networks. Nokia Bell Labs Distributed Cloud Networks Exam certification exam is an excellent opportunity for individuals who are looking to advance their careers in the telecommunications industry. The Nokia BL0-220 exam is a professional level certification exam that tests one's knowledge in designing, implementing, and managing Nokia Bell Labs Distributed Cloud Networks.
Nokia BL0-220 exam covers a wide range of topics related to distributed cloud networks, including network architecture, security, automation, and scalability. BL0-220 exam is divided into three different sections, each of which covers a distinct aspect of network administration. The first section of the exam focuses on network architecture, and covers topics such as the different types of clouds, data center designs, and network virtualization.
Nokia BL0-220 exam is designed to validate the knowledge and skills required to work with Nokia Bell Labs Distributed Cloud Networks. BL0-220 exam is ideal for professionals who are interested in pursuing a career in network engineering, cloud computing, or telecommunication. BL0-220 exam is intended to test the candidate's ability to design, deploy, and manage distributed cloud networks using Nokia's Bell Labs technology.
NEW QUESTION # 23
Which of the following contains the configuration of a VNF or CNF?
- A. Container runtime
- B. Runtime configuration.
- C. Virtual management file
- D. YAML XML template file
Answer: D
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.
NEW QUESTION # 24
What are the available options to interconnect private Datacenters? (Select 2)
- A. VLAN
- B. VPN
- C. Backbone
- D. VIP
Answer: B,C
Explanation:
The available options to interconnect private Datacenters are VPN and Backbone. VPN stands for Virtual Private Network, which is a secure and encrypted connection between two or more networks over the public internet. Backbone is a high-capacity network that connects different data centers across regions or countries. Both VPN and Backbone provide reliable, scalable, and secure data center interconnect (DCI) solutions for private/hybrid clouds. Reference: Nokia Cloud DCI offers a more scalable, reliable and secure way to connect data centers in private/hybrid clouds, Nokia business-critical cloud DCI solutions support multiple DCI applications, from real-time business continuity and disaster recovery, to synchronous data replication and cloud backup, Nokia partners with IP Telecom to deliver quantum-safe data center connectivity
NEW QUESTION # 25
Which of the following are true regarding Network Service Orchestration? (Select 2)
- A. It does not provide Geo redundancy.
- B. It automates NFV service.
- C. Is part of the 5G key enablers.
- D. It increases operational complexity.
Answer: B,C
Explanation:
Network Service Orchestration is the process of managing the lifecycle of network services across multiple domains and technologies. It automates NFV service by deploying, configuring, and scaling virtual network functions (VNFs) on demand. It is part of the 5G key enablers because it supports the dynamic and flexible provisioning of network slices and edge cloud applications. It does not increase operational complexity, but rather simplifies and optimizes it by using AI/ML and closed loop automation.
Reference:
Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks | Nokia Distributed Cloud Networks, Unit 4: Operating Your Cloud, slide 8 Nokia Bell Labs 5G Certification Program - Courses | Nokia, Distributed Cloud Networks, Unit 4: Operating Your Cloud
NEW QUESTION # 26
In public networks, what are the parts of a distributed cloud used for the 5G Core control plane. (Select 2)
- A. Core/Central Cloud
- B. Metro Edge Cloud
- C. Far Edge Cloud
- D. On-premise Edge Cloud
Answer: A,B
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 Architecture 2: Nokia Bell Labs Distributed Cloud Networks, Unit 1: Cloud Ecosystem, Section 1.3: Distributed Cloud 3: Nokia Bell Labs Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Section 3.2: Cloud Resource Planning for Distributed Cloud 4: 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
NEW QUESTION # 27
Which of the following is the mandatory key driver to consider for Cloud RAN/vRAN deployment?
- A. High capacity
- B. Low latency
- C. Privacy
- D. Low capacity
Answer: B
Explanation:
Low latency is the mandatory key driver to consider for Cloud RAN/vRAN deployment. Cloud RAN stands for Cloud Radio Access Network, which is a network architecture that centralizes the baseband processing of multiple radio sites in a cloud platform. vRAN stands for virtualized RAN, which is a network architecture that implements the baseband processing as software functions running on virtual machines or containers in a cloud platform. Both Cloud RAN and vRAN aim to improve the performance, efficiency, and flexibility of the radio access network by leveraging cloud technologies. Low latency refers to the minimal delay between the source and the destination of a data transmission, which affects the quality of service and user experience for various applications. Low latency is a critical requirement for Cloud RAN/vRAN deployment, as it ensures the timely and reliable delivery of radio signals between the centralized cloud platform and the distributed radio sites. Low latency also enables Cloud RAN/vRAN to support new 5G use cases that demand ultra-reliable and low-latency communications, such as autonomous driving, remote surgery, and industrial automation. Reference: Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Section 3.2: Cloud RAN/vRAN.
Low latency is a mandatory key driver for Cloud RAN/vRAN deployment due to the stringent requirements of real-time communication and processing in radio access networks. Low latency ensures that data transmission and processing occur with minimal delay, which is crucial for supporting high-speed, reliable communication necessary in modern wireless networks, especially with the advent of 5G technologies.
NEW QUESTION # 28
Which of the following best describes the networking concept of "Isolation"?
- A. It's the physical network layer.
- B. It restricts traffic within network.
- C. It's the virtual network layer.
- D. It allows each tenant to have their own network configuration.
Answer: D
Explanation:
Isolation is the networking concept that ensures that each tenant or user of a cloud service has their own network configuration and resources, such as IP addresses, subnets, firewalls, and routers. Isolation provides security, privacy, and performance benefits for the cloud tenants, as they can control and customize their own network settings and avoid interference or conflicts with other tenants. Isolation can be achieved by using different techniques, such as VLANs, VXLANs, VPNs, or network slicing.
Reference:
Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks | Nokia Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, slide 10 Nokia Bell Labs 5G Certification Program - Courses | Nokia, Distributed Cloud Networks, Unit 2: Cloud Technologies and Features Isolation in networking, particularly in the context of cloud computing, refers to the separation of network traffic for different users or tenant environments within a shared infrastructure. This ensures that each tenant's data and applications remain private and inaccessible to other tenants. Isolation can be achieved through various means, including virtual LANs (VLANs), network virtualization, and software-defined networking (SDN) techniques. The core idea is to provide tenants with the illusion of a private, dedicated network environment, even though the underlying physical infrastructure is shared among multiple tenants. This enables each tenant to have their own network configuration, policies, and management, ensuring security and privacy within a multi-tenant architecture.
NEW QUESTION # 29
Which of the following statements is correct regarding distributed cloud and cloud options?
- A. Cloud options are the opposite of distributed cloud.
- B. Cloud options are the same concept as distributed cloud.
- C. Cloud options are complementary with distributed cloud.
Answer: C
Explanation:
Distributed cloud is a concept that refers to the deployment of cloud services across multiple locations, such as public, private, hybrid, or edge clouds1. Cloud options are the different types of cloud models that can be used to meet the specific needs and requirements of different applications and users2. Cloud options are complementary with distributed cloud, as they enable the flexibility and scalability of cloud services across the cloud continuum3. Therefore, option B is the correct statement, while options A and C are incorrect. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Topic: Distributed Cloud Description 2: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Topic: Cloud Options 3: Cloud continuum | Nokia, Overview
NEW QUESTION # 30
The ETSI MANO Model operational stack is defined as?
- A. Orchestration above Network Function Management above Infrastructure Management
- B. Network Function Management above Orchestration above Infrastructure Management '
- C. Infrastructure Management above Network Function Management above Orchestration
- D. Infrastructure Management above Orchestration above Network Function Management
Answer: A
Explanation:
The ETSI MANO Model operational stack is defined as Orchestration above Network Function Management above Infrastructure Management. The ETSI MANO Model is a framework that defines the architecture and interfaces for the management and orchestration of network functions virtualization (NFV) in cloud networks1. The ETSI MANO Model consists of three main components: Infrastructure Management, Network Function Management, and Orchestration2. Infrastructure Management is responsible for managing the physical and virtual resources that host the network functions, such as servers, storage, switches, hypervisors, and virtual machines2. Network Function Management is responsible for managing the configuration, monitoring, and optimization of the network functions, such as scaling, healing, and updating2. Orchestration is responsible for coordinating the allocation and release of resources for network services and network slices, such as instantiation, termination, and modification2. The ETSI MANO Model operational stack is defined as Orchestration above Network Function Management above Infrastructure Management, meaning that Orchestration is the highest level of abstraction and control, Network Function Management is the intermediate level, and Infrastructure Management is the lowest level2. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 5: New Services Automation, Section 5.3: Orchestration 2: Module by Module - Self Study Note Guide - training2
NEW QUESTION # 31
How are cloud resources are made available to customers?
- A. By access to the cloud infrastructure.
- B. As virtualized resources.
- C. As direct cloud hardware.
Answer: B
Explanation:
Cloud resources are made available to customers as virtualized resources. Virtualization is the process of creating a software-based representation of a physical resource, such as a server, a storage device, or a network device. Virtualization allows multiple customers to share the same physical resource, while isolating their data and applications from each other. Virtualization also enables customers to access cloud resources on demand, without having to worry about the underlying hardware or infrastructure. Virtualization is one of the key technologies that enable cloud computing and its benefits. Reference: Nokia Cloud Platform, Module by Module - Self Study Note Guide
NEW QUESTION # 32
Select the best option below to complete the following sentence.
The_________is used to orchestrate and manage traffic through VNFs.
- A. Connection Point
- B. Virtual Link
- C. Network Forwarding Path.
- D. VNF Forwarding Graph
Answer: D
Explanation:
The best option to complete the sentence is VNF Forwarding Graph. A VNF Forwarding Graph (VNF-FG) is a logical representation of a network service that consists of a set of interconnected Virtual Network Functions (VNFs) and the traffic flows between them1. The VNF-FG is used to orchestrate and manage traffic through VNFs by specifying the order and the requirements of the VNFs that need to be traversed by the traffic2. The VNF-FG also defines the connection points, virtual links, and network forwarding paths that are involved in the service delivery3. Reference: 1: VNF Forwarding Graph and Network Service-Beginner's Guide, Introduction 2: A survey of VNF forwarding graph embedding in B5G/6G networks - Springer, Section 1 3: A Deep Reinforcement Learning Approach for VNF Forwarding Graph Embedding, Section I
NEW QUESTION # 33
Security is crucial for data centers and their users.
- A. True
- B. False
Answer: A
Explanation:
Security is crucial for data centers and their users because data centers store, process, and transmit large amounts of sensitive and valuable data for various organizations and individuals. Data centers face various security threats such as cyberattacks, natural disasters, human errors, power outages, etc. that can compromise the confidentiality, integrity, and availability of the data and the services1. Therefore, data centers need to implement various security measures such as encryption, authentication, authorization, backup, firewall, antivirus, physical security, etc. to protect the data and the users from unauthorized access, data loss, data corruption, service disruption, etc2. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Section 2.3: Cloud Networking Features 2: Data Center Security: What You Need to Know
NEW QUESTION # 34
What does OCP stands for?
- A. Operations and Control
- B. Open Circuit Platform
- C. Open Data Center Platform
- D. Open Compute Project
Answer: D
Explanation:
OCP stands for Open Compute Project, which is an initiative to design and enable the delivery of the most efficient server, storage and data center hardware designs for scalable computing1. OCP is the primary cloud infrastructure platform to develop, test and deliver Nokia's core network applications and business applications, benefiting from its scalability, flexibility, and advanced orchestration capabilities2. OCP is also part of the Nokia Cloud Platform, which is a TCO optimized solution that combines OCP with Nokia's reference hardware and blueprint architecture2. Reference: 1: Open Compute Project, Home Page 2: Nokia Cloud Platform,
NEW QUESTION # 35
Which one of the following requires a Network Service Descriptor defined in a catalog?
- A. Cloud infrastructure software
- B. Cloud orchestration
- C. Cloud software platform
- D. Software defined network
Answer: B
Explanation:
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 Role 2: 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.
NEW QUESTION # 36
It is possible to run a cloud solution in a Single Node.
- A. False
- B. True
Answer: A
Explanation:
It is not possible to run a cloud solution in a Single Node. A cloud solution requires a minimum of three nodes to provide high availability, scalability, and fault tolerance1. A Single Node is a standalone server that does not have any redundancy or load balancing features2. A Single Node can be used for testing or development purposes, but not for production or deployment of cloud applications.
NEW QUESTION # 37
Which of the following are characteristics of Cloud Native services. (Select 2)
- A. Very fast deployment
- B. Very light weight application
- C. Low Scalability
- D. Fixed capacity
Answer: A,B
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
NEW QUESTION # 38
Which of the following statements are correct regarding the characteristics of microservices? (Select 2)
- A. Monolithic applications breaks functions in small pieces called microservices.
- B. All functions are the same in microservices.
- C. Microservices are chained in order to build an application.
- D. Microservices are limited to 10 per application.
Answer: A,C
Explanation:
Microservices are a design principle for cloud-native applications, where each application is composed of a set of small, independent, and loosely coupled services that communicate with each other through well-defined interfaces1. Microservices have the following characteristics2:
Microservices are chained in order to build an application, meaning that they are connected by a network and exchange messages or data to perform a specific function or task.
Microservices are differentiated by function, meaning that each microservice has a single responsibility and performs a distinct function within the application.
Microservices are derived from monolithic applications, meaning that they are created by breaking down a large and complex application into smaller and simpler pieces that can be developed, deployed, and scaled independently.
Microservices are scalable and resilient, meaning that they can handle variable workloads and recover from failures without affecting the whole application.
Therefore, the correct statements are A and C, while B and D are incorrect. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Topic: Microservices and Containerization 2: Module by Module - Self Study Note Guide, DC2.4- Microservices and Containerization
NEW QUESTION # 39
What is the primary benefit of an Edge Cloud?
- A. Large Bandwidth
- B. Low latency
- C. Low Cost
- D. High Availability
Answer: B
Explanation:
Low latency is the primary benefit of an Edge Cloud. Edge Cloud is a distributed cloud architecture that brings cloud resources closer to the end users and devices, reducing the distance and delay for data transmission1. Low latency is crucial for many 5G use cases that require real-time responsiveness, such as autonomous driving, remote surgery, smart manufacturing, etc2. Low cost, large bandwidth, and high availability are not the primary benefits of an Edge Cloud, although they may be achieved depending on the deployment scenario and the service level agreement. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 1: Cloud Ecosystem, Section 1.2: Cloud Types 2: Nokia Bell Labs Distributed Cloud Networks, Unit 5: New Services Automation, Section 5.1: Industry 4.0 Use Cases
NEW QUESTION # 40
Select the best option below to complete the following sentence.
On-Boarding of a Network Service requires both____and____templates.
- A. CNF, VNF
- B. Application, Cloud
- C. Container, VIM
- D. NS, NF
Answer: D
Explanation:
On-Boarding of a Network Service requires both NS and NF templates. NS stands for Network Service, which is a logical grouping of network functions and resources that provide a specific functionality or service to the end user. NF stands for Network Function, which is a software component that performs a specific task or function within the network. Templates are files that describe the characteristics, requirements, and dependencies of network services and network functions. On-Boarding is the process of registering and validating network services and network functions in the cloud platform, so that they can be instantiated and managed.
Reference:
Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Unit 5: New Services Automation, slide 7 Module by Module - Self Study Note Guide, DC5.1- New Services Automation, page 19 On-boarding a Network Service typically involves Network Service (NS) and Network Function (NF) templates. NS templates define the overall structure and requirements of a network service, including its composition of various NFs and their interconnections. NF templates specify the configurations for individual network functions that are part of the service. Together, they enable the automated deployment and management of complex network services in a standardized manner.
NEW QUESTION # 41
Which of the following are properties related to a private cloud? (Select 2)
- A. High CAPEX
- B. Full Control
- C. Mixed with Public Cloud
- D. No OPEX
- E. Software as a Service
Answer: A,B
Explanation:
The properties related to a private cloud are high CAPEX and full control. CAPEX stands for capital expenditure, which is the money spent on acquiring or upgrading physical assets such as servers, storage, and network equipment. A private cloud requires high CAPEX because the cloud owner has to invest in building and maintaining the cloud infrastructure. Full control means that the cloud owner has the exclusive authority and responsibility over the cloud resources, security, and operations. A private cloud offers full control because the cloud owner can customize the cloud according to their specific needs and preferences, and can ensure the privacy and compliance of their data and applications. Reference: Nokia Cloud Platform, Module by Module - Self Study Note Guide
NEW QUESTION # 42
Cloud resource management provides which of the following? (Select 2)
- A. Management of the resources quota.
- B. Resources when available.
- C. Best effort communication for all tenants.
- D. The ability to scale resources up and down.
Answer: A,D
Explanation:
Cloud resource management provides management of the resources quota and the ability to scale resources up and down. Resource quota is the limit on the amount of resources that a tenant can use in a cloud environment, such as CPU, memory, storage, network, etc. Resource quota helps to prevent overconsumption of resources by a single tenant and to ensure fair allocation of resources among multiple tenants. The ability to scale resources up and down means that the cloud can dynamically adjust the amount of resources allocated to a tenant based on the demand and availability. Scaling resources up and down helps to optimize the performance and efficiency of the cloud, as well as to reduce the cost and waste of resources. Reference: Nokia Bell Labs Distributed Cloud Networks, Cloud Resource Planning
NEW QUESTION # 43
Which of the following cloud deployments provide the lowest latency? (Select 2)
- A. Metro Edge Cloud
- B. On-premise Edge Cloud
- C. Far Edge Cloud
- D. Central Cloud
Answer: A,B
Explanation:
On-premise Edge Cloud and Metro Edge Cloud are the cloud deployments that provide the lowest latency. Latency is the time it takes for data to travel from the source to the destination1. On-premise Edge Cloud is a cloud deployment that is located within the premises of the end-user, such as a factory, a hospital, or a campus2. Metro Edge Cloud is a cloud deployment that is located within the same metropolitan area as the end-user, such as a city or a suburb3. Both On-premise Edge Cloud and Metro Edge Cloud reduce the distance and the number of hops that data has to travel, resulting in lower latency and higher performance4. Far Edge Cloud and Central Cloud are not the cloud deployments that provide the lowest latency. Far Edge Cloud is a cloud deployment that is located at the edge of the operator's network, such as a regional data center or a base station3. Central Cloud is a cloud deployment that is located at the core of the operator's network, such as a national data center or a cloud provider3. Both Far Edge Cloud and Central Cloud increase the distance and the number of hops that data has to travel, resulting in higher latency and lower performance4.
NEW QUESTION # 44
What is the sequence of the evolution of Network Functions?
- A. Physical Network Functions -> Virtual Network Functions -> Cloud-Native Network Functions
- B. Virtual Network Functions -> Cloud-Native Network Functions -> Physical Network Functions
- C. Cloud-Native Network Functions -> Physical Network Functions -> Virtual Network Functions
- D. Virtual Network Functions -> Physical Network Functions -> Cloud-Native Network Functions
Answer: A
Explanation:
Physical Network Functions (PNFs) are the traditional network functions that run on dedicated hardware appliances, such as routers, switches, firewalls, etc1. Virtual Network Functions (VNFs) are the network functions that run on virtual machines (VMs) on top of a common hardware platform, such as servers, storage, and network1. Cloud-Native Network Functions (CNFs) are the network functions that run on containers orchestrated by Kubernetes on a cloud infrastructure1. The evolution of Network Functions reflects the trend of moving from hardware-centric to software-centric and cloud-based solutions, which offer more flexibility, scalability, and efficiency12. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, slide 18 2: Nokia Bell Labs 5G Certification Program - Blended Learning, Section 2: Distributed Cloud Networks, slide 11
NEW QUESTION # 45
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