How is an application layer firewall different from a packet filtering firewall? Why is an application layer firewall sometimes called a proxy server?
What will be an ideal response?
Ans: Packet filtering firewall allows only a particular packet with a particular source, destination, and port address to enter through the firewall. It does this by opening and closing “doors” in the firewall based on the information contained in the packet header, which makes dynamic packet filters an intermediate form, between traditional static packet filters and application proxies. Application firewall is frequently installed on dedicated computer, separate from the filtering router, but is commonly used in conjunction with a filtering router. It is called a proxy server since it runs special software that acts as proxy for a service request.
You might also like to view...
The basic syntax to use the LINQ to select and arrange records in a data set is ____.
A. Dim variableName = In dataset.table From elementName B. Dim variableName = From elementName In dataset.table C. Dim In dataset.table From elementName = variableName D. Dim From elementName In dataset.table = variableName
What is wrong with the code @import url(header.css)?
A. The file extension is not needed. B. The semicolon at the end of the statement is missing. C. The @ symbol is not needed. D. Nothing is wrong; everything is syntactically correct.
Word text that is separated by tabs can be converted to a table
Indicate whether the statement is true or false
The blue vertical bars in the Gantt chart represent holidays and vacation days
Indicate whether the statement is true or false