Quiz Chapter 10

1. What are the two categories of threats talked about, briefly describe each.

2. The chapter defines three (s) types of Firewalls. What are they? Give a distinct fact about each.


1. Disruptive: If a router or switch goes down due to power failure, a segment or the entire network may go down until power is restored. Another case is a virus attack on secondary storage, leading to loss of data.

Unauthorized Access: Can be internal or external, a person attempting to break into a resource such as a database file, E-Mail, or web server they have no permission to access.

2. Packet filtering . Permit packets to enter or leave the network through the interface on the router on the basis of protocol, IP address, and port numbers.

Application-layer firewall. A proxy server that acts as an intermediate host between the source and the destination nodes.

Stateful-inspection layer. Validates the packet on the basis of its content.

Topic revision: r3 - 2013-12-18 - JimSkon
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