In a TCP packet filtering firewall, traffic is filtered based on specified session rules, such as
when a session is initiated by a recognized computer.
Identify the level up to which the unknown traffic is allowed into the network stack.
A.
Level 5 – Application
B.
Level 2 – Data Link
C.
Level 4 – TCP
D.
Level 3 – Internet Protocol (IP)
Explanation:
Reference:
http://books.google.com.pk/books?id=KPjLAyA7HgoC&pg=PA208&lpg=PA208&dq=TCP+pa
cket+filtering+firewall+level+up+to+which+the+unknown+traffic+is+allowed+into+the+networ
k+stack&source=bl&ots=zRrbchVYng&sig=q5G3T8lggTfAMNRkL7Kp0SRslHU&hl=en&sa=X
&ei=5PUeVLSbC8TmaMzrgZgC&ved=0CBsQ6AEwAA#v=onepage&q=TCP%20packet%20f
iltering%20firewall%20level%20up%20to%20which%20the%20unknown%20traffic%20is%2
0allowed%20into%20the%20network%20stack&f=false
B
ESCA v8 page 413 (Module 12 Firewall Penetration Testing): the answer is “D”.
C page 414 TCP Packetfiltering not IP PacketFiltering !!
C… As per p414… It is talking about Sessions and TCP filtering
Level 4 Tcp so the Answer is C
“In a TCP packet filtering firewall,”
So the correct answer is C.
Level 4 – TCP
D is Correct
Sorry Guys,Correct Answer is C,As per ECSA