3-2

Question 1

free packet filtering app for linux. installed on linux machine designed to be used as your network firewall

Answer 1

Firestarter

Question 2

this product is inexpensive and available for windows only

Answer 2

avast internet security

Question 3

this proiduct is reasonably priced and effective

Answer 3

zone alarm firewall

Question 4

commercial firewall product that works with windows clients. it includes both firewall and and antivirus functionality

Answer 4

comodo firewall

Question 5

in packet filtering firewall they usually do not examine the packet or compare it to ___________ making them susceptible to ping and syn flood attacks

Answer 5

precious packets

Question 6

this type of firewall does not offer user authentication

Answer 6

packet filtering firewall

Question 7

with packet filtering firewall it does not track packets so it has not information about the ____________

Answer 7

preceeding packets

Question 8

to configure a packet filtering firewall, simply establish appropriate filtering rules. a set of rules for a given firewall would need to cover the following

Answer 8

what types of protocols,
source ports,
destination port,
source IP address to allow

Question 9

this firewall is an improvement on basic packet filtering. it will examine each packet and grant of denying access based not only on the examination of the current packet but also on data derived from the previous packet in the conversation.

Answer 9

stateful packet inspection

Question 10

with a stateful packet inspection means that the firewall is aware of the contextin which ____________

Answer 10

a specific packet was sent

Question 11

SPI firwalls are far less suseptable to ___________ attacks

Answer 11

syn and ping flood

Question 12

a stateful packet inspection firewall can tell if a packet is a part of an abnormally large stream of packets from a particular IP address, thus indicating a possible _____________

Answer 12

DOS attack in progress

Question 13

they can tell whether the packet hasa a source IP address that appears to come from inside the firewall, thiu indicating ____________

Answer 13

ip spofing is in progress

Question 14

they can also look at the actual contents of the packet, allowing for some very ___________

Answer 14

advanced filtiring capabilities

Question 15

spi firewalls are basically imroved versions of ________

Answer 15

packet filtering firewalls