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CISSP · Question #263
CISSP Question #263: Real Exam Question with Answer & Explanation
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Submitted by chen.hong· Mar 5, 2026Communication and Network Security
Question
A proxy firewall operates at what layer of the Open System Interconnection (OSI) model?
Options
- ATransport
- BData link
- CNetwork
- DApplication
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Topics
#Proxy firewall#OSI model#Application layer