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Fumiko is a network technician. She is configuring rules on one of her company's externally facing firewalls. Her network has a host address range of 192.168.42.140-190. She wants to allow all hosts access to a certain port except for hosts 188, 189, and 190. What rule or rules must she write

Sagot :

Martebiidn

The rule that she must write is that  A single rule allowing hosts 140–187 is all that is necessary; the default-deny rule takes care of blocking the remaining nonincluded hosts.

What is a Firewall?

A firewall is known to be a form of a network security device that helps one to manage, monitors and filters any form of incoming and outgoing network traffic.

This is often done based on an firm's formerly set up security policies. A  firewall is known as the barrier that exist between a private internal network and the public Internet.

See options below

What rule or rules must she write?

a) A single rule allowing hosts 140–187 is all that is necessary; the default-deny rule takes care of blocking the remaining nonincluded hosts.

b) Multiple rules are necessary for this configuration; one or more rules must define Deny exceptions for 188, 189, and 190, followed by the Allow rule for the 140–190 range.

c) A Deny rule is needed for 188, 189, and 190, and then exception rules for the 140–187 range.

d) The default Deny all rule needs to be placed first in the list, and then an exception rule for the 140–187 range.

Learn more about firewalls from

https://brainly.com/question/13693641

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