COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
log the packet
|
|
|
drop the packet
|
|
|
Both A and B
|
|
|
Neither A nor B
|
Detailed explanation-1: -Firewalls do not stop provable attack packets. Antivirus servers can only find viruses, not other types of malware. Centralized firewall management systems automatically create ACLs from policies.
Detailed explanation-2: -firewalls stop provable attack packets. If a packet is not a provable attack packet, the firewall cannot drop it. IDSs, in turn, identify suspicious packets that may or may not be parts of attacks.
Detailed explanation-3: -The most common firewall types based on methods of operation are: Packet-filtering firewalls. Proxy firewalls.
Detailed explanation-4: -Explanation: Stateful Multilayer Inspection firewalls are a combination of other three types of firewalls. These combinations are Packet filtering, circuit level and application-level gateway firewalls.