Complete the sentence to identify a common type of firewall.
A firewall that filters traffic based on IP addresses and ports is called a [1] firewall.
A packet-filtering firewall controls network access by monitoring outgoing and incoming packets and allowing them to pass or halt based on the source and destination IP addresses, ports, or protocols.
Complete the sentence to describe where a firewall is commonly placed.
A firewall is typically placed at the [1] of a network to control traffic between the internal network and the internet.
The perimeter of a network is the boundary between the internal trusted network and external untrusted networks like the internet. Firewalls placed here monitor and control incoming and outgoing traffic.
Fix the error in the statement about firewall types.
A [1] firewall inspects the state of active connections and makes decisions based on the context of the traffic.
A stateful firewall tracks the state of active connections and uses this information to determine which network packets to allow through the firewall.
Fill both blanks to describe firewall placement and type.
An [1] firewall is often placed [2] the internal network to monitor and filter traffic for specific applications.
Application-layer firewalls operate at a higher level to inspect traffic for specific applications and are often placed inside the network to protect sensitive resources.
Fill all three blanks to complete the firewall description.
A [1] firewall acts as an intermediary [2] between users and the internet, often placed at the [3] to enhance security.
A proxy firewall acts as a server between clients and the internet, usually placed at the network perimeter to filter requests and hide internal network details.