COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
True
|
|
|
False
|
|
|
Either A or B
|
|
|
None of the above
|
Detailed explanation-1: -As a key part of a network firewall system, proxy servers keep unwanted intruders, hikers, and viruses away from internal networks, while they allow approved users to access the Internet resources.
Detailed explanation-2: -A proxy firewall is a network security system that protects network resources by filtering messages at the application layer. A proxy firewall is also be called an application firewall or gateway firewall.
Detailed explanation-3: -Can a proxy be used as a firewall? If so, how? No. Proxies are data encryption stations whose sole purpose is to encrypt and re-rout data.
Detailed explanation-4: -A proxy server, also known as a “proxy” or “application-level gateway", is a computer that acts as a gateway between a local network (e.g., all the computers at one company or in one building) and a larger-scale network such as the internet. Proxy servers provide increased performance and security.