NETWORK SECURITY
INTRODUCTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Packet Filtering Firewall
|
|
|
Dual Homed Gateway Firewall
|
|
|
Screen Host Firewall
|
|
|
All of the mentioned
|
Detailed explanation-1: -These firewall types allow users to define rules and manage ports, access control lists (ACLs) and IP addresses.
Detailed explanation-2: -A packet filtering firewall is the most basic type of firewall that controls data flow to and from a network. It is a network security solution that allows network packets to move across between networks and controls their flow using a set of user-defined rules, IP addresses, ports, and protocols.
Detailed explanation-3: -Explanation: There are four types of firewall based on their working and characteristics. These are Packet Filtering Firewalls, Circuit Level Gateway Firewalls, Application level Gateway Firewalls, and Stateful Multilayer Inspection Firewalls.
Detailed explanation-4: -Packet filtering is the process of passing or blocking data packets at a network interface by a firewall based on source and destination addresses, ports or protocols.
Detailed explanation-5: -There are mainly three types of firewalls, such as software firewalls, hardware firewalls, or both, depending on their structure. Each type of firewall has different functionality but the same purpose.