Which of the following statements about firewalls is true? A firewall with a packet filter may block harmful files. Firewalls with packet filters simply accept or reject data packets; they never provide feedback to the source. Each packet that travels through the firewall will be examined by the packet filter firewall. Firewalls using packet filters may examine the application layer

Which of the following statements about firewalls is true? A firewall with a packet filter may block harmful files. Firewalls with packet filters simply accept or reject data packets; they never provide feedback to the source. Each packet that travels through the firewall will be examined by the packet filter firewall. Firewalls using packet filters may examine the application layer

Management Of Information Security

6th Edition

ISBN:9781337405713

Author:WHITMAN, Michael.

Publisher:WHITMAN, Michael.

Chapter12: Protection Mechanisms

Section: Chapter Questions

Problem 5RQ

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Outline the process through which a stateless firewall rejects all HTTP requests.
In what ways do firewalls function as described below? A packet filtering firewall may prevent malicious data from being downloaded. Packet-filtering firewalls either accept or reject data packets without giving any indication of their decision to the sender. The packet filter firewall inspects each data packet as it passes through the firewall. It's possible that packet-filtering firewalls will investigate the application layer.
To what extent does a stateless firewall block outgoing and incoming HTTP requests?
For what does a firewall provide protection?Filtering packets follows a set of rules.
Describe the process by which a stateless firewall blocks all HTTP requests, whether they are entering or leaving the network.
1 ) Listen During a denial-of-service attack, a network administrator blocks the source IP with the firewall, but the attack continues. What is the most likely cause of the problem? Denial-of-service worm has already infected the firewall locally. A firewall can't block denial-of-service attacks. The attack is coming from multiple, distributed hosts. Antivirus software needs to be installed.
In network security, it is important to understand port scanning. Hackers use tools to scan a network and determine if there are open ports and if they contain some sort of vulnerability. To scan ports, you first have to find active hosts on a network. Once you find active hosts and discover a list of IP addresses for those hosts, a port scan can be performed to gather information about open ports and analyze services running on those ports. A port scan is the process of sending packets to an active host's ports and learning details that can help you gain access to that host or to discover open vulnerabilities on your network. Some common ports are:Port 20 - File Transfer Protocol or FTPPort 22 - Secure Shell protocol or SSHPort 23 - Telnet protocol for unencrypted transferPort 80 - HyperText Transfer Protocol or HTTPPort 443 - HyperText Transfer Protocol Secure or HTTPS The Well Known Ports are those from 0 through 1023 We are going to simulate a port scan by filling a list with 100…
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What does it defend a computer against while it's behind a firewall?The filtering of packets operates according to a predetermined set of guidelines.
When it is activated, what does it protect against exactly?The process of filtering packets is governed by a set of criteria that has been specified.
Against what dangers is a firewall erected?When filtering packets, there is a certain protocol to follow.