Podcast
Questions and Answers
What is a defining characteristic of Private Fog computing?
What is a defining characteristic of Private Fog computing?
- It combines resources from multiple clouds to increase capacity.
- It is managed by community organizations for shared concerns.
- It is exclusively deployed within the premises of a specific organization. (correct)
- Resources are open to the public for general use.
Which Fog model is primarily operated by government organizations and academic institutions?
Which Fog model is primarily operated by government organizations and academic institutions?
- Hybrid Fog
- Public Fog (correct)
- Private Fog
- Community Fog
What does FogPaaS provide to its users?
What does FogPaaS provide to its users?
- Physical hardware resources for direct access.
- Complete data management solutions.
- Network infrastructure without software assistance.
- Operating software and development environments. (correct)
What is a key feature that distinguishes Fog computing from Edge computing?
What is a key feature that distinguishes Fog computing from Edge computing?
Which service offers hardware resources without disclosing specific details about the physical infrastructure?
Which service offers hardware resources without disclosing specific details about the physical infrastructure?
Which layer is responsible for the initial data monitoring in a Fog computing infrastructure?
Which layer is responsible for the initial data monitoring in a Fog computing infrastructure?
How does Hybrid Fog computing enhance resource availability?
How does Hybrid Fog computing enhance resource availability?
What is the primary role of the Temporary Storage Layer in Fog computing?
What is the primary role of the Temporary Storage Layer in Fog computing?
How does Fog computing improve service delivery for real-time IoT applications?
How does Fog computing improve service delivery for real-time IoT applications?
Which aspect is NOT monitored in the Monitoring Layer of Fog computing?
Which aspect is NOT monitored in the Monitoring Layer of Fog computing?
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Study Notes
Fog Computing Overview
- Combines both edge and core network components such as switches, routers, and regional servers.
- Enhances service delivery latency for real-time IoT applications by processing data closer to devices.
Edge vs. Fog Computing
- Fog computing differs by providing cloud-based services (IaaS, PaaS, SaaS) at the network edge.
- Regarded as a more structured paradigm for IoT systems than edge computing.
Physical and Virtualization Layer
- Comprises smart things and physical/virtual sensor nodes within wireless sensor networks.
- Geographically distributed sensors collect data from the environment and send it to the monitoring layer via gateways.
Monitoring Layer Functions
- Monitors availability status of sensors, fog, and network nodes.
- Tracks resource utilization, task performance, time requirements, and energy consumption of each node.
- Assesses the status of IoT services deployed on the infrastructure.
Preprocessing and Temporary Storage Layers
- Preprocessing layer analyzes, filters, and trims data to extract useful information.
- Temporary storage layer retains data before forwarding to the IoT Cloud, clearing it after successful transmission.
Security Layer
- Implements encryption, decryption, and integrity safeguards to protect data from tampering.
Transport Layer
- Responsible for uploading preprocessed data to the IoT Cloud for Big Data analysis.
- Only selected portions of collected data are sent from sensing nodes to the IoT Cloud via gateways.
Fog Computing Models
- Private Fog: Owned and managed by a private organization for exclusive internal use.
- Public Fog: Operated by government entities or academic institutions for public access.
- Community Fog: Managed by community organizations for specific groups with shared interests.
- Hybrid Fog: Merges private, public, or community fog with public/private cloud resources to enhance scalability.
Virtualized Resources in Fog Computing
- Fog IaaS: Offers hardware resources without exposing physical details; utilities can be deployed on virtual resources.
- Fog PaaS: Provides operating software and development environments, facilitating cost-effective software development and deployment.
- Fog SaaS: Delivers software applications remotely via web browsers, eliminating the need for local installations.
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