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Packet-filtering firewall

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Q: Which type of firewall blocks traffic based on port numbers?
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What is the name of the tool used to control the traffic that is entering or leaving your network?

The tool used to regulate the traffic that traverses into or out of a network is known as a firewall. It serves as a security barrier, scrutinizing the network traffic based on predefined rules, and blocks or permits data packets accordingly. It's an essential component in maintaining the security and integrity of a network.


Does a firewall encrypt data?

No, it filters traffic based on certain set rules.


Which type of firewall serves as a relay between users and servers on the Internet and inspects all traffic and allows or denies traffic based on a set of rules?

packet filtering firewallproxy firewall


When trying to protect your network you should create your secure network based on?

master firewall that all traffic flows through


The firewall determines if network traffic should continue on to its destination or be stopped.?

A firewall can block/open particular ports without prejudice. Yes, a firewall does determine if network traffic should continue through to the destination or be stopped. Therefore keeping unwanted materials out. Yes, firewalls are in charge of deciding whether a piece of network traffic should be allowed past the firewall to travel onwards to its destination or if it should be stopped. Rules can be set at the firewall to prevent traffic from entering your local network that you do not want to. A modern firewall can be programmed to block or or pass through (with or without modification) packet traffic based on its source or its destination or both. It can select packets based on an IP address, a range of ip addresses, network or subnet. It can use port numbers to filter or redirect packets to specific ip addresses. Better ones can select packets based on the domain name, or part of it or even block based on the contents of a web page. Of course, it may also block access to a really nice chicken breast recipe because of one word. Some firewalls can even filter based on the category association of a host or domain name. For example, you can block web sites that involve drugs and alcohol, or sites associated with sex and nudity.

Related questions

What is the name of the tool used to control the traffic that is entering or leaving your network?

The tool used to regulate the traffic that traverses into or out of a network is known as a firewall. It serves as a security barrier, scrutinizing the network traffic based on predefined rules, and blocks or permits data packets accordingly. It's an essential component in maintaining the security and integrity of a network.


Does a firewall encrypt data?

No, it filters traffic based on certain set rules.


Which type of firewall serves as a relay between users and servers on the Internet and inspects all traffic and allows or denies traffic based on a set of rules?

packet filtering firewallproxy firewall


When trying to protect your network you should create your secure network based on?

master firewall that all traffic flows through


The firewall determines if network traffic should continue on to its destination or be stopped.?

A firewall can block/open particular ports without prejudice. Yes, a firewall does determine if network traffic should continue through to the destination or be stopped. Therefore keeping unwanted materials out. Yes, firewalls are in charge of deciding whether a piece of network traffic should be allowed past the firewall to travel onwards to its destination or if it should be stopped. Rules can be set at the firewall to prevent traffic from entering your local network that you do not want to. A modern firewall can be programmed to block or or pass through (with or without modification) packet traffic based on its source or its destination or both. It can select packets based on an IP address, a range of ip addresses, network or subnet. It can use port numbers to filter or redirect packets to specific ip addresses. Better ones can select packets based on the domain name, or part of it or even block based on the contents of a web page. Of course, it may also block access to a really nice chicken breast recipe because of one word. Some firewalls can even filter based on the category association of a host or domain name. For example, you can block web sites that involve drugs and alcohol, or sites associated with sex and nudity.


Is there a potential for a denial of service attack against a stateful firewall that would not occur in a stateless firewall?

Stateful firewalls use session-based rules to control traffic. The disadvantage of a stateful firewall is that it can be vulnerable to Denial of Service (DoS) attacks if a lot of new connections are opened very fast.


What does a firewall do?

Firewall is a piece of software that creates a barrier between Internet and your PC. In short, Firewall analyzes the traffic that goes from and to your computer and blocks such packets (traffic) that could hurt your computer.


What is is a firewall?

A firewall is something that protects your computer from viruses--a barrier between your computer and where the viruses come from. A firewall can be hardware, software or a combination. A firewall is generally a network security device or software that actively monitors incoming and outgoing network traffic. It can either allow or block certain traffic based on a defined set of internet security protocols. A firewall acts as a barrier that limits the damages from internal and external cyber attacks. The firewall can be broadly divided into host-based and network-based. A host-based firewall is normally installed on individual servers and monitors incoming and outgoing network signals. A network-based firewall is established in the cloud's infrastructure or it can be a virtual firewall service.


How can you prevent a DDoS attack?

The easiest way available today to prevent DDoS attacks on your website is to use a WAF (web application firewall) which screens the traffic to your website. For small to medium websites it's easiest to use a cloud-based web application firewall services as Incapsula.com


How can a business prevent DDOS attacks?

The easiest way available today for businesses to prevent DDoS attacks on is to use a WAF (web application firewall) which screens the traffic to your website. For small to medium business websites it's easiest to use a cloud-based web application firewall services as Incapsula.com


Should you complement your firewall by installing a hardware firewall?

It is the general consensus that you should complement your firewall program by installing a hardware firewall. This is a firewall that is built into a router or stand-alone device. It often provides greater protection than a software-based firewall.


True or false traffic laws are made based on rash and hasty decisions?

False. They are based on decades, and in some ways centuries, of learning the hard way how best to move large numbers of diverse people about safely and efficiently.