Disadvantages of using Firewall
- Complexity: Setting up and keeping up a firewall can be time-consuming and difficult, especially for bigger networks or companies with a wide variety of users and devices.
- Limited Visibility: Firewalls may not be able to identify or stop security risks that operate at other levels, such as the application or endpoint level, because they can only observe and manage traffic at the network level.
- False sense of security: Some businesses may place an excessive amount of reliance on their firewall and disregard other crucial security measures like endpoint security or intrusion detection systems.
- Limited adaptability: Because firewalls are frequently rule-based, they might not be able to respond to fresh security threats.
- Performance impact: Network performance can be significantly impacted by firewalls, particularly if they are set up to analyze or manage a lot of traffic.
- Limited scalability: Because firewalls are only able to secure one network, businesses that have several networks must deploy many firewalls, which can be expensive.
- Limited VPN support: Some firewalls might not allow complex VPN features like split tunneling, which could restrict the experience of a remote worker.
- Cost: Purchasing many devices or add-on features for a firewall system can be expensive, especially for businesses.
Practice Question
Question: A packet filtering firewall can [ISRO CS 2013]
(A) Deny certain users from accessing a service
(B) Block worms and viruses from entering the network
(C) Disallow some files from being accessed through FTP
(D) Block some hosts from accessing the network
Answer: Option (D)
For more details you can refer ISRO | ISRO CS 2013 | Question 44 published quiz.
Introduction of Firewall in Computer Network
A firewall is a network security device that prevents unauthorized access to a network. It monitors both incoming and outgoing traffic using a predefined set of security to detect and prevent threats.
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