Flashcards
OSI and Security
Cards in this deck (10)
- 1What security concern is associated with the Physical layer (Layer 1) of the OSI model?Wiretapping and electronic eavesdropping, particularly with copper-based wiring. Fiber optic cables are preferred for their immunity to EMF listening devices.
- 2How does the Data Link layer (Layer 2) address security?It involves protocols for logical network access, like Ethernet and Wi-Fi, with threats like ARP poisoning and wireless deauthentication attacks being significant.
- 3What are the key security measures at the Network layer (Layer 3)?Use of packet-filtering firewalls to mitigate spoofing attacks and manage IP-based traffic efficiently, securing IP and ICMP protocols.
- 4Describe the security approach at the Transport layer (Layer 4).Managing service-specific traffic through TCP and UDP port numbers, utilizing packet-filtering firewalls to defend against port scanning attacks.
- 5What role does the Session layer (Layer 5) play in security?Facilitates distinct communication sessions, with protocols like RPC being targets for attacks. Regular patching is a key defense mechanism.
- 6How is security implemented at the Presentation layer (Layer 6)?Through data encryption and encoding, with TLS protocol securing web pages against man-in-the-middle attacks by encrypting data in transit.
- 7What are the security considerations for the Application layer (Layer 7)?Protecting web servers and APIs from attacks like SQL injection and ensuring secure access to application services via protocols like HTTP and HTTPS.
- 8How does data flow in the OSI model contribute to network security?By providing a structured approach to managing and securing data as it passes through each layer, from physical transmission to application processing.
- 9Why is understanding the OSI model important for cybersecurity?It helps in identifying and implementing security controls at each layer, ensuring comprehensive protection against a wide range of threats.
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- GRE NetSec Foundations Flashcards on OSI and Security, created by Joseph Rubino on 05/03/2024.
- Created by
- Joseph Rubino · Mar 2024
- Updated
- Mar 5, 2024
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