What does a firewall check to prevent particular ports and applications from getting packets into an organization?
A. Transport layer port numbers and application layer headers
B. Presentation layer headers and the session layer port numbers
C. Network layer headers and the session layer port numbers
D. Application layer port numbers and the transport layer headers
Answer:A
What does a firewall check to prevent particular ports and applications from getting packets into an organization?
A. Transport layer port numbers and application layer headers B. Presentation layer headers and the session layer port numbers C. Network layer headers and the session layer port numbers D. Application layer port numbers and the transport layer headers