BL0-100 Nokia Bell Labs 5G Foundation Questions and Answers

Several data flows are sent at the same time on the same frequency.

The signals on each antenna are made orthogonal.

The data flows are sent at the same time on different frequencies.

Transmit diversity is used in case of poor radio conditions.

1

8

unlimited

4

IPSec

Access Control List

SSH

X25

When it serves a given customer for a specific purpose, such as a national energy network.

When it cross all the network layers from the radio up to the core.

When it serves a given common purpose, for a use case with a defined QoS (eg a use case in transportation, in energy).

When it operates on the same layer of the ISO/OSI model.

The drone control application needs very low latency to maneuver around obstacles, while the video application would need less latency. Both applications would be running in the central cloud.

The drone control application needs low latency and high reliability from the network and should run in the edge cloud. The video application needs higher throughput but it is not sensitive from the latency and reliability point of view. It can run in a central cloud.

Both applications should run in the edge cloud because the drone control and video applications both require low latency and high reliability from the network.

The drone control application should run through a central cloud. The video streaming application should run in the edge cloud because it carries much data, and that is expensive to run through the central cloud.

Security Orchestration Automation and Recovery

Security Optimization Accountability Recovery

Security Orchestration Automation and Response

Securitization, Optimization, Access Control, and Resiliency

Increased cell coverage

Better latency

Reduced cost by centralizing some radio functionalities

Increase radio throughput

Multiple slices create multiple virtual network instances.

Unique Quality of Service can be allocated to a given slice.

Specific resources can be allocated to a given slice.

Network Slicing is a way to physically partition the common network infrastructure.

TDM Network

IP Network

Access Backhaul

Optical Transport

Mobility

Latency

Uplink and downlink throughput per User Equipment

Cost of the User Equipment

By implementing resource isolation and security isolation on the network slice

By implementing virtual firewall on the network slice

By implementing traffic isolation on the network slice

By implementing user and control planes separation on the network slice

Cloud software platform

Cloud infrastructure software

Cloud orchestration

Software defined network

Security + Cloud isolation

Resource + Security isolation

Transport + Cloud isolation

Resource + Traffic isolation

Low latency characteristics in the range of 5 to 10 ms for High Speed Discrete Automation Applications.

Low latency characteristics in the range of 0.1 to 1 ms for Video Monitoring and AR.

Low latency characteristics in the range of 100 to 200 ms for Remote Control Tele-operation Applications.

Low latency characteristics in the range of 50 to 100 ms for Discrete and Process Automation Applications.

Smart Metering

Containers

Orchestration

Hardware acceleration

Hijack attack on hypervisor

DDoS attack on the SDN switches

Poor NFV implementation

Hypervisor resources leakage