Computer Science · Computer Networks
A Layer 4 firewall (a device that can inspect all protocol headers up to the transport layer) cannot perform which of the following operations?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Preventing all ICMP traffic
- 2Stopping all HTTP traffic from 9 PM to 5 AM
- 3Blocking incoming traffic from a specific IP address while allowing outgoing traffic to it
- 4Blocking a specific user's TCP traffic from 9 PM to 5 AM in a multi-user system✓
Correct answer
Blocking a specific user's TCP traffic from 9 PM to 5 AM in a multi-user system
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