ITPEC IP October 2020 Question 38
ITPEC IP October 2020 — Question 38 of 100
Access control protects confidentiality by allowing only authorized users or processes to read the file. Authentication establishes identity, and authorization rules determine whether that identity may view, copy, modify, or otherwise use the information.
Answer (a)
Why not others:
- a timestamp supplies evidence about time and existence
- a digital signature primarily supports integrity, authenticity, and non-repudiation
- hot standby improves system availability through a ready backup system
Key rule: Confidentiality prevents unauthorized disclosure; access control and encryption are principal safeguards for it.
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