Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Concept explainers

VLAN
VLAN stands for Virtual Local Area Network, and it is created from one or more local area networks. A Virtual Local Area Network (VLAN) is a customized network made up of one or more LANs. It allows a set of devices from different networks to be convert…
Question

Can you explain the main functions of a firewall? I am working on a packet-filtering programme right now. Which guidelines have been established for me to follow?

Expert Solution
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Step 1

We use computer firewalls to protect our network from hackers.

The primary job of a firewall is packet filtering.

A computer transmits a request as a short packet of data while communicating over the internet.

These data packets make their way through the network to their final destination

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