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Cyber security at the network and application layers of an IT system plays a crucial role in ensuring the confidentiality, integrity, and availability of digital resources. As cyber threats become increasingly sophisticated, protection strategies must be applied at multiple layers to prevent malicious activities such as unauthorized access, data theft, denial of service, and exploitation of vulnerabilities. Both network layer and application layer defenses complement each other, forming a comprehensive security posture that safeguards the system against evolving cyber risks. At the network layer, security is primarily concerned with protecting data in transit, monitoring traffic flows, and ensuring that unauthorized actors cannot gain access to internal resources. One of the key mechanisms is the use of firewalls, which filter incoming and outgoing packets based on predefined rules, preventing malicious traffic from ___ _________ __________ __________ ______ _____.
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