16 Questions
What is a primary advantage of running a firewall as a dedicated device?
It is easier to design correctly and inspect for bugs.
What is a characteristic of a reference monitor, such as a firewall?
It is always invoked and cannot be avoided.
What is the primary function of a firewall's security policy?
To determine what traffic can or cannot pass through.
What type of firewall is described in the example configuration, where external traffic can reach specific internal servers and ports?
Packet filtering firewall.
What is the primary benefit of a small and simple firewall design?
It is easier to analyze for bugs and vulnerabilities.
What is the primary function of a firewall?
To filter all traffic between a protected and less trustworthy network
What is a characteristic of a reference monitor, such as a firewall?
It is always invoked and tamperproof
What type of firewall sees only addresses and service protocol type?
Packet Filtering
What type of firewall maintains state information from one packet to another in the input stream?
Stateful Inspection
What is the purpose of a firewall's security policy?
To set rules for what traffic can or cannot pass through
What type of firewall is similar to a packet filter?
Simplest decision-making rules
What is the primary function of a firewall in a network?
To determine what to let in and/or out of the internal network
What type of firewall operates at the network layer?
Packet filter
What is a key characteristic of a stateful packet filter?
It keeps track of the state of network connections
What is the analogy used to describe the role of a firewall in a network?
A firewall is like a secretary
What type of firewall is designed for a single user or a small home network?
Personal firewall
Learn about the importance of firewalls in network security, how they act as access control for internal networks, and how they filter out requests. Understand the concept of firewalls through a relatable analogy of a secretary.
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