COMPUTER THREATS SECURITY
WHAT IS A FIREWALL IN NETWORK SECURITY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A workstation is using the DHCP protocol to request an IP address from a DHCP server.
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A ping of death attack on a network host is in progress.
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Someone is remotely accessing another system using the SSH protocol.
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The MGCP protocol is generating traffic, which VoIP uses to send voice data over a network.
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Detailed explanation-1: -You are monitoring network traffic on your network, and you see traffic between two network hosts on port 2427. Which kind of network traffic uses this port? The MGCP protocol is generating traffic, which VoIP uses to send voice data over a network.
Detailed explanation-2: -A firewall is software or firmware that prevents unauthorized access to a network. It inspects incoming and outgoing traffic using a set of rules to identify and block threats.
Detailed explanation-3: -A Firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization’s previously established security policies. At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet.
Detailed explanation-4: -A packet filtering firewall controls data flow to and from a network. It allows or blocks the data transfer based on the packet’s source address, the destination address of the packet, the application protocols to transfer the data, and so on.
Detailed explanation-5: -A firewall is a network security device that monitors and filters incoming and outgoing network traffic in accordance with previously established security policies in an organization.