Real Nokia BL0-220 Exam Questions Study Guide
Updated and Accurate BL0-220 Questions for passing the exam Quickly
Nokia BL0-220 certification is recognized globally and is highly valued by employers in the telecommunications industry. It is an excellent way for professionals to demonstrate their expertise in Nokia's distributed cloud networks and distinguish themselves from their peers.
NEW QUESTION # 17
What is the approximate maximum distance of an Edge Cloud from the end-user?
- A. 10Q0KM
- B. 5000KM
- C. 10000KM
- D. 300KM
Answer: D
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.
NEW QUESTION # 18
What are the two main options to interconnect private and public clouds? (Select 2)
- A. VXLAN
- B. VLAN
- C. VPN
- D. WAN
Answer: C,D
Explanation:
The two main options to interconnect private and public clouds are VPN and WAN. VPN stands for Virtual Private Network, which is a secure and encrypted connection between two or more networks over the public internet. VPN allows private and public clouds to communicate with each other without exposing their data or traffic to third parties. WAN stands for Wide Area Network, which is a network that spans a large geographic area, such as a country or a continent. WAN allows private and public clouds to interconnect across different regions or locations, using high-speed and high-capacity links. Both VPN and WAN provide reliable, scalable, and flexible solutions for hybrid cloud scenarios, where private and public clouds work together to deliver optimal performance and efficiency. Reference: Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Cloud Data Center Interconnect for Large Enterprises, 5G Core on cloud: go public, private or a bit of both?
NEW QUESTION # 19
How are cloud resources are made available to customers?
- A. As virtualized resources.
- B. As direct cloud hardware.
- C. By access to the cloud infrastructure.
Answer: A
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 # 20
Which of the following statements is correct regarding monolithic applications?
- A. Monolithic applications are more reliable than microservices.
- B. Monolithic applications involve the most complex management strategy.
- C. Monolithic applications are a mono-block functional service.
- D. Monolithic applications are smaller in size than cloud native applications.
Answer: C
Explanation:
Monolithic applications are a mono-block functional service because they are composed of a single, self-contained unit that contains all the components of the application, such as the user interface, business logic, data access, etc1. Monolithic applications are not smaller in size than cloud native applications, as they tend to grow larger and more complex over time2. Monolithic applications are not more reliable than microservices, as they are more prone to failures, bugs, and performance issues due to the tight coupling and interdependency of the components3. Monolithic applications do not involve the most complex management strategy, as they are easier to develop, test, and deploy initially, but they become harder to maintain, scale, and update as the application evolves4. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Section 2.4: Cloud Application Architectures 2: Monolithic Architecture 3: Microservices vs Monolithic Architecture 4: Monolithic vs. Microservices Architecture
NEW QUESTION # 21
Which of the following statements are correct regarding the characteristics of microservices? (Select 2)
- A. All functions are the same in microservices.
- B. Monolithic applications breaks functions in small pieces called microservices.
- C. Microservices are limited to 10 per application.
- D. Microservices are chained in order to build an application.
Answer: B,D
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 # 22
Select the best option below to complete the following sentence.
Your apps need cloud resources which are______and then__
- A. commissioned, instantiated
- B. distributed, terminated
- C. started, commissioned
- D. allocated, provisioned
Answer: D
Explanation:
Your apps need cloud resources which are allocated and then provisioned. Allocation is the process of assigning cloud resources to a specific app or service, based on the requirements and availability1. Provisioning is the process of configuring and activating the allocated cloud resources, making them ready to use by the app or service2. Commissioning, instantiation, starting, and distribution are not the correct terms to complete the sentence. Commissioning is the process of testing and verifying the cloud resources before they are allocated3. Instantiation is the process of creating an instance of an app or service, which is a running copy of the app or service that uses the provisioned cloud resources4. Starting is the process of launching an instance of an app or service, which can be done manually or automatically. Distribution is the process of spreading the cloud resources across different locations or domains, to achieve scalability, redundancy, or performance. Termination is the process of deleting or releasing the cloud resources that are no longer needed by the app or service.
NEW QUESTION # 23
Select the best option below to complete the following sentence.
The_________is used to orchestrate and manage traffic through VNFs.
- A. Network Forwarding Path.
- B. Connection Point
- C. VNF Forwarding Graph
- D. Virtual Link
Answer: C
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 # 24
Which of the following contains the configuration of a VNF or CNF?
- A. YAML XML template file
- B. Runtime configuration.
- C. Virtual management file
- D. Container runtime
Answer: A
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 # 25
What is the primary benefit of an Edge Cloud?
- A. Low Cost
- B. Large Bandwidth
- C. High Availability
- D. Low latency
Answer: D
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 # 26
Which of the following are AI hardware solutions? (Select 2)
- A. Habana
- B. DataLake
- C. Sparks
- D. EyeQ
Answer: A,D
Explanation:
Habana and EyeQ are two examples of AI hardware solutions that are designed to accelerate deep learning and computer vision applications. Habana is a company that produces AI processors for both training and inference workloads1. EyeQ is a family of system-on-chips (SoCs) developed by Mobileye for advanced driver-assistance systems (ADAS) and autonomous driving2. DataLake and Sparks are not AI hardware solutions. DataLake is a term that refers to a large-scale data storage architecture that can store structured, semi-structured, and unstructured data from various sources3. Sparks is a misspelling of Spark, which is an open-source distributed computing framework for large-scale data processing and machine learning4. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 4: AI/ML in Cloud Networks, Section 4.2: AI Hardware 2: Nokia Bell Labs Distributed Cloud Networks, Unit 4: AI/ML in Cloud Networks, Section 4.2: AI Hardware 3: Nokia Bell Labs Distributed Cloud Networks, Unit 2: Cloud Technologies and Features, Section 2.4: Cloud Storage 4: Nokia Bell Labs Distributed Cloud Networks, Unit 4: AI/ML in Cloud Networks, Section 4.3: AI Software
NEW QUESTION # 27
Which of the following is the mandatory key driver to consider for Cloud RAN/vRAN deployment?
- A. High capacity
- B. Low capacity
- C. Low latency
- D. Privacy
Answer: C
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
What is the main advantage of development concepts such DevOps and CI/CD used in cloud native applications?
- A. To eliminate validation phase of application development.
- B. To reduce time and complexity for development and deployment.
- C. To increase the number of check point in development and deployment procedures.
- D. To separate development and deployment in different phases.
Answer: B
Explanation:
To reduce time and complexity for development and deployment. Comprehensive Explanation and Reference of Correct answer: The main advantage of development Reference:
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
NEW QUESTION # 29
What does OCP stands for?
- A. Open Circuit Platform
- B. Operations and Control
- C. Open Compute Project
- D. Open Data Center Platform
Answer: C
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 # 30
Select the best option below to complete the following sentence.
Different paths for a NF providing Cloud Resilience are defined in a_____?
- A. Network Service Descriptor
- B. Network Function template
- C. NS Orchestrator configuration
- D. NFV Orchestrator configuration
Answer: A
Explanation:
Different paths for a NF providing Cloud Resilience are defined in a Network Service Descriptor. A Network Service Descriptor (NSD) is a document that describes the topology, configuration, and requirements of a network service. It specifies the network functions (NFs) that compose the service, the virtual links that connect them, and the forwarding graphs that define the traffic flows between them1. A NSD also defines the resilience policies for each NF, such as the number of instances, the scaling triggers, the fault management actions, and the alternative paths in case of failures2. A Network Function template, an NS Orchestrator configuration, and an NFV Orchestrator configuration are not the correct options to complete the sentence. A Network Function template is a document that describes the characteristics and requirements of a single network function, such as the virtualization environment, the resources, the interfaces, and the dependencies1. An NS Orchestrator configuration is a set of parameters that control the behavior and operation of the NS Orchestrator, which is a component that manages the lifecycle of network services3. An NFV Orchestrator configuration is a set of parameters that control the behavior and operation of the NFV Orchestrator, which is a component that coordinates the allocation and release of resources for network services3. Reference: 1: Nokia Bell Labs Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Section 3.2: Network Function 2: Nokia Bell Labs Distributed Cloud Networks, Unit 3: Cloud Resource Planning, Section 3.3: Network Service Descriptor Role 3: Nokia Bell Labs Distributed Cloud Networks, Unit 4: Operating Your Cloud, Section 4.1: Industry Trends in Data Center Hardware
NEW QUESTION # 31
AI/ML based operation requires which of the follow? (Select 3)
- A. Closed loop automation
- B. Pre-defined policies
- C. Open APIs
- D. Standard Protocols
Answer: A,B,C
Explanation:
Closed loop automation Comprehensive Explanation and Reference of Correct answer: AI/ML based operation requires pre-defined policies, open APIs, and closed Reference:
Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks | Nokia Distributed Cloud Networks, Unit 4: Operating Your Cloud, slide 7 Nokia, A1 and Microsoft deploy industry's first 5G edge cloud network slicing solution for enterprises | Nokia, paragraph 4
NEW QUESTION # 32
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