Match the following network layers with their corresponding attacks or concepts: Physical layer, Data link layer, Network layer, Transport layer, Application layer Loopholes, Computer virus, Port…

Question

Options

• APhysical layer - Loopholes; Data link layer - ARP spoofing; Network layer - ICMP attack, Smurf attack, Address scanning; Transport layer - Port scanning, Buffer overflow attack; Application layer - Computer virus, SQL injection, Trojan
• B
• C
• D

• A
  85% (22)
• B
  8% (2)
• C
  4% (1)
• D
  4% (1)

Explanation

Option A correctly maps each attack or concept to the OSI layer where it originates or operates. ARP spoofing belongs at the Data Link layer because ARP resolves IP addresses to MAC addresses at Layer 2. ICMP attacks and the Smurf attack (which amplifies ICMP echo requests) belong to the Network layer (Layer 3), as does address (IP) scanning. Port scanning and buffer overflows target Transport layer (Layer 4) services - ports are TCP/UDP constructs, and buffer overflows often exploit transport-level daemons. Computer viruses, Trojans, and SQL injection are Application layer (Layer 7) threats because they exploit application logic and software. Physical layer "loopholes" refer to weaknesses in physical access or cabling infrastructure, placing them correctly at Layer 1.

Since options B, C, and D are not provided, there are no distractors to refute - A is the sole answer presented.

Memory tip: Use the phrase "Please Do Not Throw Sausage Pizza Away" (Physical, Data link, Network, Transport, Session, Presentation, Application) to recall OSI layers in order, then anchor each attack by asking "at what level does this protocol or vulnerability live?" - ARP = MAC addresses = Layer 2, ICMP = IP-level messaging = Layer 3, ports = TCP/UDP = Layer 4, and malware/SQL = user-facing apps = Layer 7.

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