FUNDAMENTALS OF COMPUTER

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COMPUTER THREATS SECURITY

WHAT IS A FIREWALL IN NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
You want to inspect all the traffic being sent into the network from outside of the LAN. You can only afford to purchase and install a single device to accomplish this. If you find malicious activity though, you want to be able to block it from entering the network based upon signatures you will create. Which device/software should you install?
A
NIDS
B
NIPS
C
HIDS
D
HIPS
Explanation: 

Detailed explanation-1: -Stateful inspection firewalls – also known as dynamic packet-filtering firewalls – monitor communication packets over time and examine both incoming and outgoing packets.

Detailed explanation-2: -A firewall is essential software or firmware in network security that is used to prevent unauthorized access to a network. It is used to inspect the incoming and outgoing traffic with the help of a set of rules to identify and block threats by implementing it in software or hardware form.

Detailed explanation-3: -Next Generation Firewall (NGFW)

Detailed explanation-4: -Software-based firewalls provide individual devices significant protection against viruses and other malicious content. They can discern different programs running on the host, while filtering inbound and outbound traffic.

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