Managing and maintaining is the phase of firewall implementation and deployment in which Elliott

monitored the firewall logs in the above scenario. A firewall is a system or device that controls and

filters the incoming and outgoing traffic between different networks or systems based on predefined

rules or policies. A firewall can be used to protect a network or system from unauthorized access,

use, disclosure, modification, or destruction . Firewall implementation and deployment is a process

that involves planning, installing, configuring, testing, managing, and maintaining firewalls in a

network or system . Managing and maintaining is the phase of firewall implementation and

deployment that involves monitoring and reviewing the performance and effectiveness of firewalls

over time . Managing and maintaining can include tasks such as updating firewall rules or policies,

analyzing firewall logs , detecting evolving threats or attacks , ensuring firewall security , addressing

network issues , etc. In the scenario, Elliott was tasked with implementing and deploying firewalls in

the corporate network of an organization. After planning and deploying firewalls in the network,

Elliott monitored the firewall logs to detect evolving threats and attacks; this helped in ensuring

firewall security and addressing network issues beforehand. This means that he performed managing

and maintaining phase for this purpose. Deploying is the phase of firewall implementation and

deployment that involves installing and activating firewalls in the network or system according to the

plan. Testing is the phase of firewall implementation and deployment that involves verifying and

validating the functionality and security of firewalls before putting them into operation. Configuring

is the phase of firewall implementation and deployment that involves setting up and customizing

firewalls according to the requirements and specifications.