A Content Distribution Network (CDN) uses replication to distribute content across servers for faster access. The DAMA-DMBOK states: “CDNs rely on data replication to distribute content to edge servers, ensuring low latency and high availability for global users” (DMBOK2, Chapter 13: Data Integration and Interoperability, p. 519).
Options A, B, D, and E are unrelated: ETL (A) is for integration, archiving (B) and disposal (E) are lifecycle tasks, and backups (D) are for recovery.
[Reference:DAMA-DMBOK2, Chapter 13: Data Integration and Interoperability, Section 4.2, p. 519., ]
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