Security is crucial for data centers and their users.
Correct Answer: A
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
Question 17
What is the primary benefit of an Edge Cloud?
Correct Answer: A
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
Question 18
Agility in data centers are a prime attribute of an efficient Distributed Cloud Solution. Which of the following factors are the focus of an agile data center? (Select 2)
Correct Answer: B,C
Scalability and Openness are the focus of an agile data center. Scalability refers to the ability of a data center to adapt to changing demands and workloads by adding or removing resources dynamically. Openness refers to the use of open standards and interfaces that enable interoperability and integration of different technologies and vendors in a data center. An agile data center can provide flexible, efficient, and cost-effective services to customers and applications, while reducing operational complexity and overhead. Fixed Architecture and Closed Cloud System are not the focus of an agile data center. Fixed Architecture means a rigid and predefined structure of a data center that cannot be easily modified or customized. Closed Cloud System means a proprietary and isolated cloud platform that does not support compatibility or collaboration with other cloud platforms or services. A fixed architecture and a closed cloud system can limit the performance, functionality, and innovation of a data center, and increase the dependency and lock-in of customers and applications. Reference: Nokia Bell Labs 5G Professional Certification - Distributed Cloud Networks, Unit 1: Cloud Ecosystem, Section 1.3: Cloud Agility.
Question 19
The ETSI MANO Model operational stack is defined as?
Correct Answer: B
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
Question 20
What are the available options to interconnect private Datacenters? (Select 2)
Correct Answer: A,B
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
