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How can next-generation firewalls act as intrusion prevention systems?
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They can block known vulnerabilities through deep packet inspection.
Why might enabling all features on a Unified Threat Management device impact performance?
Because they primarily operate at layer 4 and adding functions like content inspection can slow down processing.
What OSI layer do traditional network-based firewalls primarily operate on?
OSI layer 4 (TCP/UDP ports)
How do next-generation firewalls differ from traditional firewalls in terms of traffic management?
Next-generation firewalls operate at OSI layer 7 and manage traffic based on applications, not just port numbers.
What information might you find in a Web Application Firewall log?
Timestamps, attack IDs, URLs, IP addresses, and types of attacks.
How can a NGFW help with URL categorization?
It can block specific types of sites or URLs based on their categorization to prevent access to unwanted content.
What kind of traffic analysis does a Web Application Firewall (WAF) perform?
It analyzes web-based application input, particularly HTTP/HTTPS traffic.
What additional capabilities do modern next-generation firewalls have beyond traditional firewall functions?
They can perform deep packet inspection and application-level traffic management.
What standards might mandate the use of Web Application Firewalls?
Standards such as PCI DSS.
Why are Web Application Firewalls often used in conjunction with NGFWs?
They provide specialized protection for web applications that NGFWs may handle less effectively.
What is a key feature of Unified Threat Management (UTM) devices?
UTM devices bundle multiple features such as URL filtering, content inspection, spam filtering, malware blocking, and can act as VPN concentrators.
What type of firewall is most effective against web-based attacks like SQL injections and cross-site scripting?
Web Application Firewalls (WAF)
Which firewall type is also known as application layer gateways or stateful multi-layer inspection devices?
Next Generation Firewalls (NGFW)
In what scenarios are home and traditional network-based firewalls commonly used?
Home environments and offices to control and manage internet traffic and provide parental or corporate control.
What role do firewalls play in antivirus and anti-malware protection?
They provide a layer of security by controlling and filtering traffic that may contain malicious content.
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