Chapter 4-2

When a firewall identifies an attack packet, it ________.

A) discards the packet

B) copies information about the packet into a log file

C) both A and B

D) neither A nor B

A firewall will drop a packet if it ________.

A) is a definite attack packet

B) is a highly probable attack packet

C) both A and B

D) neither A nor B

Stateful packet inspection firewalls are attractive because of their ________.

A) low cost for a given traffic volume

B) ability to base rules on specific application programs

C) both A and B

D) neither A nor B

When a packet that is part of an ongoing connection arrives at a stateful inspection firewall, the firewall usually ________.

drops the packet

drops the packet and notifies an administrator

passes the packet

passes the packet, but notifies an administrator

How will a stateful packet inspection (SPI) firewall handle a packet containing a TCP segment that contains an acknowledgement?

process it through the Access Control List (ACL)

pass it if it is part of an approved connection

both A and B

neither A nor B

SPI firewalls are being replaced in large part because they are limited in their ability to detect ________.

NAT

piggybacking

port spoofing

none of the above

Which type of firewall filtering looks at application-layer content?

A) stateful packet inspection

B) NGFW

C) both A and B

D) neither A nor B

Which of the following is the most frustrating to use?

A) IDSs

B) opaque filtering

C) SPI firewalls

D) NGFW firewalls

________ look at ________, while ________ mostly look at ________.

Antivirus programs; packets; firewalls; packets

Antivirus programs; files; firewalls; files

Antivirus programs; packets; firewalls; files

Antivirus programs; files; firewalls; packets

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