FUNDAMENTALS OF COMPUTER

COMPUTER THREATS SECURITY

TYPES OF NETWORK SECURITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What method of network security prevents packets from entering or leaving a network unless they meet a set of rules?
A
Access Control
B
Firewall
C
Physical Security
D
Anti-Malware
Explanation: 

Detailed explanation-1: -When a packet passes through a packet-filtering firewall, its source and destination address, protocol and destination port number are checked. The packet is dropped – meaning not forwarded to its destination – if it does not comply with the firewall’s rule set.

Detailed explanation-2: -A firewall is a system designed to prevent unauthorized access to or from a private network. You can implement a firewall in either hardware or software form, or in a combination of both.

Detailed explanation-3: -Transport Layer Security (TLS) and the original Secure Sockets Layer (SSL) are cryptographic protocols that are used for transferring information over networks such as the Internet. They both encrypt the data transferred between communicating endpoints, such as a Web browser and a Web server.

Detailed explanation-4: -Network Security involves access control, virus and antivirus software, application security, network analytics, types of network-related security (endpoint, web, wireless), firewalls, VPN encryption and more.

Detailed explanation-5: -Firewall – meaning and definition This software or dedicated hardware-software unit functions by selectively blocking or allowing data packets. It is typically intended to help prevent malicious activity and to prevent anyone-inside or outside a private network-from engaging in unauthorized web activities.

There is 1 question to complete.