VDI uses virtual machines to host desktop environments, allowing users to access desktops remotely through thin clients.
What is Software-Defined Networking (SDN)?
SDN is a model that automates the provisioning of network components using a centralized control layer (SDN controller) to manage traffic and policies through APIs.
What are the three layers of SDN as defined by the IETF?
The three layers are: (a) Application Layer: Controls traffic prioritization, security, and routing. (b) Control Layer: Managed by the SDN controller, this layer automates network decisions, and (c) Infrastructure Layer: Contains physical or virtual devices like routers and switches that forward traffic.
What is the role of the SDN controller?
The SDN controller is a virtual device that manages network traffic by making decisions based on the application layer's input and controls the infrastructure layer through APIs.
What is cloud file storage?
Cloud file storage is a service that allows users to store, synchronize, and share files over the Internet, such as OneDrive, Dropbox, and Google Drive.
How does file synchronization work in cloud storage?
Cloud storage automatically syncs files across devices like PCs and smartphones, ensuring access to the latest version of a file on all devices.
Why is file replication important in cloud storage?
Replication ensures that files are copied across multiple datacenters or geographic areas to improve access speed, reliability, and availability.
What is a Content Delivery Network (CDN)?
A CDN is a system that replicates media and resources across multiple Internet Exchange Points (IXPs) to ensure faster delivery to end users by positioning files closer to ISP networks.
How does cloud storage improve data reliability?
Cloud storage improves reliability by replicating data across different availability zones and geographic areas, ensuring that data is available and backed up in case of failure.