Other IT & Programming Subjects
Firewall
Which of the following is not a VALID basic criteria for rule in the firewall policy?
Explanation:
User is not a basic packet filtering criterion. Basic criteria include Service (ports/protocols), Source address, and Destination address. User-based filtering requires application-level firewalls.
The basic concept of a SYN flooding attack lies in the design of what handshake that begins a TCP connection?
Explanation:
The 3-way handshake (SYN, SYN-ACK, ACK) begins TCP connections. SYN flood attacks exploit this by sending many SYN requests without completing the handshake, exhausting server resources.
What is the primary purpose of a firewall?
Explanation:
The primary purpose is to Inspect packets. Firewalls examine packet headers and contents to make filtering decisions based on security rules, blocking threats while allowing legitimate traffic.
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