What is one limitation of a stateful firewall?
- weak user authentication
- cannot filter unnecessary traffic
- not as effective with UDP- or ICMP-based traffic
- poor log information
Explanation: Limitations of stateful firewalls include the following:
Stateful firewalls cannot prevent application layer attacks.
Protocols such as UDP and ICMP are not stateful and do not generate information needed for a state table.
An entire range of ports must sometimes be opened in order to support specific applications that open multiple ports.
Stateful firewalls lack user authentication.
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