Which of the following is true about a host firewall?
A) Its primary use is against threats from outside the network.
B) For incoming packets, the destination is usually a network service like file sharing or DNS.
C) It should never be configured to allow packets transmitted by ping.
D) You need to download and install a host firewall on most modern OSs.

Question

Quizplus · Accepted Answer

Host firewalls, also known as personal firewalls, are designed to filter traffic to and from a single host. They can control traffic based on applications, processes, and services running on the host. For incoming packets, the destination is often a network service hosted on the machine, such as file sharing, web services, or DNS, making option B correct. They are not exclusively used against external threats (A is incorrect), as they can also manage and log internal traffic. It's not true that they should never allow ping packets; this is a configurable option depending on the user's security policy (C is incorrect). Most modern operating systems come with a built-in host firewall, so it's generally not necessary to download and install one separately (D is incorrect).

Which of the Following Is True About a Host Firewall