TELECOMMUNICATIONS SYSTEMS
HOW STAR BUS RING MESH TOPOLOGY CONNECT COMPUTER NETWORKS IN ORGANIZATIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Allows people on the Internet to see just one IP address
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Restricts access of resources to designated IP addresses only.
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Manages password functions
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Restricts unauthorized users from accessing sensitive data
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Detailed explanation-1: -A firewall is a computer network security system that restricts internet traffic in to, out of, or within a private network. This software or dedicated hardware-software unit functions by selectively blocking or allowing data packets.
Detailed explanation-2: -At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet. A firewall’s main purpose is to allow non-threatening traffic in and to keep dangerous traffic out.
Detailed explanation-3: -A firewall acts as a gateway that passes data between the networks. A firewall acts as a barrier when the firewall blocks the free passage of data to and from the network. The firewall requires a user on the internal network to log in to the firewall system to access hosts on remote networks.
Detailed explanation-4: -Your firewall can also block certain IP addresses from connecting to your server. On a Windows server, you do this by logging into your server via RDP and creating a new firewall rule listing the IP addresses you want to block.
Detailed explanation-5: -It analyses which traffic should be allowed or restricted based on a set of rules. Think of the firewall like a gatekeeper at your computer’s entry point which only allows trusted sources, or IP addresses, to enter your network. A firewall welcomes only those incoming traffic that has been configured to accept.