Role of firewalls in securing networks

What is the primary role of a firewall in network security?

• To increase data storage capacity

• To monitor and control incoming and outgoing network traffic

• To enhance internet speed

• To manage employee internet usage

Which type of firewall acts as a middleman between your internal network and the internet?

• Proxy service firewall

• Stateful multi-layer inspection firewall

• Packet-filtering firewall

• Network address translation firewall

What does a Stateful multi-layer inspection (SMLI) firewall do?

• Blocks network traffic based on IP protocol, address, and port number

• Keeps track of established connections and uses dynamic packet filtering

• Filters messages at the application layer

• Assesses internet traffic and blocks unsolicited communication

Which firewall type combines the functions of the SMLI firewall with intrusion prevention and antivirus?

• Proxy service firewall

• Virtual firewall

• Unified threat management (UTM) firewall

• Next-generation firewall

What is the function of Next-generation firewalls (NGFW)?

• To filter messages at the application layer

• To block network traffic based on IP protocol

• To inspect a packet’s contents and source, blocking sophisticated threats

• To keep track of established connections

Why are firewalls necessary for network security?

• To protect against unauthorized access and cyber threats

• To manage software updates

• To enhance software performance

• To prevent data loss through hardware failure

What additional security measure is suggested to use in conjunction with firewalls?

• Antivirus software

• All of the above

• Data encryption

• Email filtering

How do firewalls contribute to regulatory compliance?

• By safeguarding sensitive information and preventing unauthorized disclosure

• By increasing operational efficiency

• By managing employee database

• By monitoring internet usage

What is a key feature of Virtual Private Networks (VPNs) in the context of firewalls?

• They serve as primary data storage solutions

• They increase data transfer speeds

• They replace the need for firewalls

• They provide secure remote access to internal networks

Which firewall type is specifically used in cloud-based systems?

• Packet-filtering firewall

• Stateful multi-layer inspection firewall

• Proxy service firewall

• Virtual firewall