Which of the following statements about firewall (in the context of computing) is INCORRECT?
- It is unable to permit legitimate communication to pass.
- It is frequently used to protect a computer network from unauthorized access.
- It permits network transmission based on a set of rules.
- It is a combination of both, software and hardware devices.
Answer (Detailed Solution Below)
Option 1 : It is unable to permit legitimate communication to pass.
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The correct answer is It is unable to permit legitimate communication to pass.
- A firewall is a network security device/software that monitors incoming and outgoing network traffic and permits or blocks data packets based on a set of security rules. Its purpose is to establish a barrier between your internal network and incoming traffic from external sources (such as the internet) in order to block malicious traffic like viruses and hackers.
- A legitimate or genuine content can always pass through the firewall depending on the permission set by the firewall.
- Firewalls filter traffic coming from unsecured or suspicious sources to prevent attacks and carefully analyze incoming traffic based on pre-established rules.
- Firewalls guard traffic at a computer’s entry point called ports, which is where information is exchanged with external devices.
Firewalls can either be software or hardware, though it’s best to have both.
A software firewall is a program installed on each computer and regulates traffic through port numbers and applications, and pre-defined rules, while a physical firewall is a piece of equipment installed between your network and gateway.
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A. Follows a set of rules
B. Can be either a hardware or software device
C. Filters network traffic
D. All the above
Question added by Emad Mohammed said abdalla , ERP & IT Software, operation general manager . , AL DOHA Company
Date Posted: 2015/08/26
- 8 Answers
by
Hameed Abdul , Head – IT, Procurement & Infrastructure , Omega Computronix
7 years ago
Firewall is specifically used to filter the network traffice
D. All the above......................................................
D is the corect option for this
Thank you experts.................................
(D) is the right answer. Thanks.
D. All of the above, ..............
>>>>>>>>>>>>>>>> D. All the above
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