4 thoughts on “Firewall

  1. Varun says:

    Q 1. What is Firewall?
    Ans. 1) A firewall is a software program or piece of hardware that helps screen out hackers, viruses, and worms that try to reach your computer over the Internet. If you can’t start Windows Firewall or you are getting an error, use our free tool to diagnose and fix problems.
    2) A firewall is a network security system, either hardware- or software-based, that controls incoming and outgoing network traffic based on a set of rules.

    Q 2. Needs of Firewall?
    Ans. 1) Without a firewall, your computer is operating with an “open door” policy.
    2) Bank account information, passwords, credit card numbers, virtually any sensitive information on your computer becomes available to hackers.
    3) Hackers can get in, take what they want, and even leave one of their own “back doors” in place for ongoing access to your computer whenever they like.

  2. Naresh says:

    Q 1. What is Firewall?
    Ans. A firewall is a software program or piece of hardware that helps screen out hackers, viruses, and worms that try to reach your computer over the Internet. If you can’t start Windows Firewall or you are getting an error, use our free tool to diagnose and fix problems.A firewall is a network security system, either hardware- or software-based, that controls incoming and outgoing network traffic based on a set of rules.

    Q 2. Needs of Firewall?
    Ans. Without a firewall, your computer is operating with an “open door” policy. Bank account information, passwords, credit card numbers, virtually any sensitive information on your computer becomes available to hackers. Hackers can get in, take what they want, and even leave one of their own “back doors” in place for ongoing access to your computer whenever they like.

  3. Sunil Kumar,Abhishek chauhan says:

    Q: what is firewall? What are the needs of firewall?

    In computing, a firewall is a network security system that monitors and controls the incoming and outgoing network traffic based on predetermined security rules.

    A firewall is a network security device that grants or rejects network access to traffic flows between an untrusted zone (e.g., the Internet) and a trusted zone (e.g., a private or corporate network). The firewall acts as the demarcation point or “traffic cop” in the network, as all communication should flow through it and it is where traffic is granted or rejected access

    Needs :
    Without a firewall, your computer is operating with an “open door” policy.
    In computing, firewall is important because ,firewall typically establishes a barrier between a trusted, secure internal network and another outside network, such as the Internet, that is assumed to not be secure or trusted.

  4. Diksha says:

    1) What is firewall ? And its software/hardware features.
    Ans: Firewall: – A firewall is a network security system, either hardware- or software-based, that controls incoming and outgoing network traffic based on a set of rules. Before firewalls emerged in the late 1980s, the only real form of network security was performed by access control lists (ACLs) residing on routers. ACLs determined which IP addresses were granted or denied access to the network.
    Features of hardware /software firewall:-
    A hardware firewall sits between your computer and the Internet, while a software firewall sits between your computer and the network. If other computers on your network become infected, the software firewall can protect your computer from them.
    Software firewalls allow you to easily control network access on a per-application basis. In addition to controlling incoming traffic, a software firewall can prompt you when an application on your computer wants to connect to the Internet and allow you to prevent the application from connecting to the network. This feature is easy to use with a third-party firewall, but you can also prevent applications from connecting to the Internet with the Windows firewall.

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