Cascading log architecture enables centralized collection of logs from various sources, enhancing visibility and simplifying security monitoring in hybrid environments. Reference: [Security Guidance v5, Domain 6 - Security Monitoring]

ISO/IEC 27018:2014 establishes commonly accepted control objectives, controls and guidelines for implementing measures to protect Personally Identifiable Information (PII) in accordance with the privacy principles in ISO/IEC 29100 for the public cloud computing environment.

If you are a cloud provider (including managing a private cloud), physical segregation of networks composing your cloud is important for both operational and security reasons. We most commonly see at least three different networks which are isolated onto dedicated hardware since there is no functional or traffic overlap:
1. The service network for communications between virtual machines and the Internet. This builds the network resource pool for the cloud users.
2. The storage network to connect virtual storage to virtual machines.
3. A management network for management and API traffic.
Ref: Reference: CSA Security GuidelinesV.4 (reproduced here for the educational purpose)

A content delivery network(CDN) is a system of distributed servers(network) that deliver pages and other Web content to a user. based on the geographic locations of the user. the origin of the webpage and the content delivery server.